#raspberrypi IRC Log


IRC Log for 2013-06-02

Timestamps are in GMT/BST.

[0:00] <Ricksl> heh, no software implementation of them?
[0:00] <JakeSays> i want to use servoblaster, but it dedicates 8 gpio pins, and i only want 1
[0:01] * IanCormac (~Iancormac@cpe-72-179-150-137.satx.res.rr.com) has joined #raspberrypi
[0:02] <JakeSays> according to the servoblaster readme, i need to build the kernel first
[0:02] <JakeSays> which just seems silly
[0:02] <Ricksl> It is just a library though right?
[0:02] * ironfroggy (~ironfrogg@python/site-packages/ironfroggy) Quit (Excess Flood)
[0:03] <JakeSays> its a kernel module
[0:03] <Ricksl> that seems silly.
[0:04] * joako (~joako@opensuse/member/joak0) Quit (Ping timeout: 240 seconds)
[0:04] * ironfroggy (~ironfrogg@ec2-50-16-218-141.compute-1.amazonaws.com) has joined #raspberrypi
[0:04] <Ricksl> Oh its making that way more complicated than it should be, the drivers bind a device to /dev/servoblaster
[0:05] <Ricksl> and then you can just write to it the number of the servo and the servo position.
[0:05] * NIN101 (~NIN@p5DD29A1B.dip0.t-ipconnect.de) Quit (Quit: NIN101)
[0:05] <JakeSays> apparently a ko is required for accuracy or something
[0:06] <Ricksl> But it might be useful if you are driving ultra precise servos, most servos are controlled with a pulse
[0:06] <JakeSays> right
[0:06] <Ricksl> and if you are just using a software implementation of setting the pins high and low, timing can get bad if say another process momentarily eats up the processing power.
[0:07] <JakeSays> if i can get a servo working and a photoresistor then i can ditch the basic stamp
[0:07] <IanCormac> Ricksl: That is exactly the issue. Raspi timing is highly non-deterministic
[0:07] <IanCormac> Problem is, if you're not careful, messing with this stuff can break USB and stuff as well
[0:07] <JakeSays> i have no issues with using a ko, i just dont want to dedicate 8 gpio pins when i only need one
[0:07] <IanCormac> because all that stuff is timing-sensitive
[0:07] <IanCormac> Why don't you use SPI or I2C or even UART and a small external microcontroller?
[0:08] <IanCormac> that's by far the most reliable/easiest option
[0:08] * mrcan (~mrcan@unaffiliated/mrcan) has joined #raspberrypi
[0:08] <JakeSays> thats how i'm currently doing it
[0:08] <SpeedEvil> there is also DMA based aervo
[0:08] <SpeedEvil> servo
[0:09] <SpeedEvil> which is lots better
[0:09] * MrBlaise (MrBlaise@netacc-gpn-4-76-194.pool.telenor.hu) has joined #raspberrypi
[0:09] <JakeSays> SpeedEvil: isnt that how servoblaster works? dma?
[0:09] * plietar (~plietar@AGrenoble-651-1-427-100.w90-52.abo.wanadoo.fr) Quit (Quit: plietar)
[0:10] * plietar (~plietar@AGrenoble-651-1-427-100.w90-52.abo.wanadoo.fr) has joined #raspberrypi
[0:10] * Bushmills (~Bushmills@scarydevilmonastery.net) has joined #raspberrypi
[0:10] * GentileBen (~epidural@cpc5-lutn10-2-0-cust681.9-3.cable.virginmedia.com) Quit ()
[0:10] * plietar (~plietar@AGrenoble-651-1-427-100.w90-52.abo.wanadoo.fr) Quit (Client Quit)
[0:10] <MrBlaise> Hey!
[0:10] <Ricksl> what are the servos jake?
[0:11] <Ricksl> part number, i mean.
[0:11] <JakeSays> Ricksl: this one: http://www.parallax.com/Portals/0/Downloads/docs/prod/motors/900-00005-StdServo-v2.0.pdf
[0:11] * plietar (~plietar@AGrenoble-651-1-427-100.w90-52.abo.wanadoo.fr) has joined #raspberrypi
[0:12] * JlRd (~JlRd@ip68-109-174-116.ph.ph.cox.net) has joined #raspberrypi
[0:13] <MrBlaise> I'm new to raspberry pi, and I'm planing to buy one. I want to learn how to build small robots, but I'm really new to these stuff... My question is if I buy a rPi B rev2 thank wha accesories should I buy with it?
[0:13] <MrBlaise> than what*
[0:14] * joako (~joako@opensuse/member/joak0) has joined #raspberrypi
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[0:15] <Ricksl> You might want to look into arduino first, i know they say it is easy to use pi for robotics but you need somewhat of a foundation.
[0:15] <Bushmills> consider that raspberry commonly runs with linux, which is not a real time operating system
[0:15] <Bushmills> for robotics you want something without an operating system between your code and the peripherals
[0:15] <JakeSays> Bushmills: depends on which flavor of linux
[0:16] <Bushmills> true. but not raspbian.
[0:16] <JakeSays> right
[0:16] * gyeben (~gyonkiben@4E5C16E4.dsl.pool.telekom.hu) has joined #raspberrypi
[0:16] <gyeben> hi
[0:16] <IanCormac> JakeSays: You almost never want to use Linux for a simple robot. Any RT flavor of linux is too complex for a noob
[0:17] <JakeSays> i wonder if ros has been ported to the pi
[0:17] <Bushmills> i'd think of a forth interpreter/compiler running on the bare hardware
[0:17] <Peemo> Uh oh, I think I've messed up pretty good. I was trying to make an auto login @ boot using this http://themanbehindthecode.com/tag/raspberry-pi/ "add auto login" I have done exactly what he said but now I'm getting an error when I boot.
[0:17] <JakeSays> Bushmills: thats going a bit too far
[0:17] <Peemo> My main issue is that I can't overwrite the inittab file from my SSH on my computer it says I don't have enough permission.
[0:18] * user82 (~user82@unaffiliated/user82) Quit (Remote host closed the connection)
[0:18] <Bushmills> well, it may be off topic, but it's not that complicated to do so
[0:18] * welsh1 (~Sam@cpc23-newt30-2-0-cust149.19-3.cable.virginmedia.com) Quit (Quit: Leaving.)
[0:18] <Peemo> Am I screwed or is the a way around this?
[0:18] <Bushmills> the system doubles as sort of operating system, after all
[0:18] <JakeSays> Bushmills: lol no i dont mean too far off topic - i mean thats a bit too extreme just for performance.
[0:19] <JakeSays> you could do quite a bit with a pi and a bunch of servos
[0:19] <Bushmills> less for performance, more for predictibility of timing
[0:19] <Peemo> I can't login to my Pi because my boot is messing up and I can't overwrite the file using SSH.
[0:19] * Markvilla (~Markvilla@ has joined #raspberrypi
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[0:19] <JakeSays> for simple robotics you dont need that level of precision
[0:19] <ozzzy> sudo should let you overwrite
[0:20] <MrBlaise> Ricksl Thanks I'll check out arduino
[0:20] <Bushmills> depends on the needs of "simple robotics"
[0:21] <mgottschlag> Peemo: but you probably can access the sd card from a different computer and fix it there
[0:21] * [SkG] (~sconde@unaffiliated/skg/x-897332) Quit (Quit: Saliendo)
[0:21] <Peemo> I can't even type on the Pi, it keeps saying "Init Id "1" Respawning too fast: disasbled for 5 minutes.
[0:21] <Peemo> mgottschlag: Omg true... sorry guys hahah didn't think of that.
[0:23] <JakeSays> dang - 700mb just for the kernel repo
[0:23] * owen_ (~owen@ has joined #raspberrypi
[0:24] <Peemo> I can't see the file I need when I put the SD card on another computer. There is no way to access the normal folder structure?
[0:25] <JakeSays> Peemo: what kind of computer?
[0:25] <Peemo> Mac
[0:25] <JakeSays> i'm pretty sure macs can't read ext4 partitions by default
[0:25] <Peemo> I have access to a PC as well.
[0:26] <mgottschlag> there are ext4 drivers for windows though if you have that somewhere
[0:26] <Peemo> Ok.
[0:26] <mgottschlag> and probably there are ext4 drivers for mac as well
[0:26] <mgottschlag> somewhere.
[0:27] * cmasta (~cmasta@c-98-246-11-70.hsd1.or.comcast.net) has joined #raspberrypi
[0:27] * Treferwynd (~quassel@host110-145-dynamic.211-62-r.retail.telecomitalia.it) Quit (Ping timeout: 256 seconds)
[0:27] <tanuva> people say osxfuse works, but it didnt for me so far
[0:28] <IanCormac> The best way is just to run linux in a VM
[0:28] <IanCormac> it sucks that Filesystem drivers aren't more universal
[0:30] * chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) Quit (Quit: Leaving)
[0:30] * djazz (~djazz@ Quit (Read error: Operation timed out)
[0:30] <ryan_turner> Got mine up and running, was an SD card issue.
[0:33] * karlh626 (~karlh626@addr- has joined #raspberrypi
[0:33] <Bushmills> Peemo: spawning too fast is often a result of /dev not populated. possible the directory /dev is missing.
[0:34] <Bushmills> oh, that wasn't your question, sorry.
[0:34] * pksato (~PEBKAC@unaffiliated/pksato) has joined #raspberrypi
[0:34] <Peemo> Bushmills: No I mucked about in the inittab file and was trying to get an "auto login at boot". Didn't work.
[0:34] <ant_thomas> ryan_turner: glad to hear it's working!
[0:35] <Peemo> Does anyone have a good link to a tutorial for setting up "auto login at boot"? The one included in http://themanbehindthecode.com/tag/raspberry-pi/ isn't doing it for me.
[0:36] <Bushmills> Peemo: i'd probably use ngetty, and it's autologin feature
[0:37] <ozzzy> doesn't raspi-config have an auto-logon option
[0:37] <Bushmills> ngetty not just for that, it's also nice that only a single process is spawned for multiple consoles
[0:37] <Bushmills> ttys
[0:38] <ozzzy> guess not
[0:39] <Peemo> I just looked, I only see "Start desktop on boot?"
[0:39] * pengu (~pengu@lpzg-4dbdf5e7.pool.mediaWays.net) Quit (Quit: Leaving)
[0:40] <ozzzy> that was what I was thinking of
[0:40] <ozzzy> sorry
[0:41] <Peemo> brb
[0:41] * Peemo (ae73632e@gateway/web/freenode/ip. Quit (Quit: Page closed)
[0:43] <gordonDrogon> JakeSays, rewinding... servos - I did a test softwareServo module, but it suffers from too much jitter.
[0:43] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[0:43] <JakeSays> gordonDrogon: i'm gonna give servoblaster a try
[0:44] <gordonDrogon> there is some more stuff I can do from userland, but I've just not had the time to get into it.
[0:44] <JakeSays> actually what i really want is a small solenoid
[0:45] * Kaboon (kaboon@524A5520.cm-4-3b.dynamic.ziggo.nl) has joined #raspberrypi
[0:45] * esing (~esing@unaffiliated/esing) Quit (Remote host closed the connection)
[0:45] <gordonDrogon> that's easy to drive - you just need a buffer of some sort.
[0:45] * Peemo (ae73632e@gateway/web/freenode/ip. has joined #raspberrypi
[0:45] <JakeSays> easy to drive - hard to find :(
[0:45] <pksato> to make auto login, replace agetty login program, unfortunately agetty -f option dont accept arguments to login program. need to use make some workaround to use standard login program.
[0:46] <JakeSays> i cant even think of anything i have that i could lift one from
[0:46] <gordonDrogon> is this a door-lock one or a air/water valve?
[0:46] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[0:47] <JakeSays> neither - all i need to do is move a lever about half an inch
[0:47] <JakeSays> right now i'm using a servo which is way overkill
[0:47] <gordonDrogon> door lock type then.
[0:48] <JakeSays> i have a trap door with a counterweight on it. when its released it closes
[0:49] * dan2k3k4 (~dan2k3k4@unaffiliated/dan2k3k4) Quit (Remote host closed the connection)
[0:49] <gordonDrogon> http://www.aliexpress.com/item/small-cabinet-lock-GX03-electric-lock-Free-shipping-solenoid-lock/579629696.html
[0:49] * gyeben (~gyonkiben@4E5C16E4.dsl.pool.telekom.hu) has left #raspberrypi
[0:50] * sayo- (~notmymail@unaffiliated/sayo-) Quit (Remote host closed the connection)
[0:50] <gordonDrogon> http://uk.farnell.com/ped/42-120-610-620/solenoid-12vdc/dp/9687831
[0:51] <gordonDrogon> lots of choice.
[0:51] * BoomerET (BoomerET@c-76-102-159-121.hsd1.ca.comcast.net) has joined #raspberrypi
[0:51] <gordonDrogon> all about 12v at 1 amp though, so you need a good mosfet, or uln2803 + a relay.
[0:51] * MrBlaise (MrBlaise@netacc-gpn-4-76-194.pool.telenor.hu) Quit (Ping timeout: 256 seconds)
[0:52] * Protux (~Protux@abo-154-129-68.bdx.modulonet.fr) Quit (Quit: Textual IRC Client: www.textualapp.com)
[0:52] <JakeSays> gordonDrogon: here's the door in action: https://www.youtube.com/watch?v=hYDnDlmNPuY
[0:53] <gordonDrogon> you have a mouse called 'gordo' ...
[0:53] <JakeSays> lol well i no longer have him
[0:54] * ReggieUK (ReggieUK@ Quit ()
[0:55] <gordonDrogon> so your aim is to make a hi-tec mousetrap...
[0:55] <gordonDrogon> They sell them for 95p for a "little nipper" in the local farm supplies shop...
[0:55] <JakeSays> that was a hi-tec mousetrap. i'm going for the uber-hi-tec model now
[0:56] <gordonDrogon> you might want to consider using an electromagnet. Door sprung closed, electromagnet to hold it open. Not terribly power efficient though, however...
[0:56] <JakeSays> ohhh hmm
[0:57] * Peemo (ae73632e@gateway/web/freenode/ip. Quit (Quit: Page closed)
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[0:57] <JakeSays> that would work
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[0:59] * Thra11 (~Thra11@ Quit (Ping timeout: 276 seconds)
[0:59] <JakeSays> gordonDrogon: although if i have an electromagnet, i pretty much have a solenoid
[1:00] <gordonDrogon> one with no moving parts..
[1:00] <JakeSays> right
[1:01] <JakeSays> but if the magnet were to pull something when energized..
[1:01] <gordonDrogon> http://uk.farnell.com/stephenson-gobin/58-0125-12-vdc/electromagnet-type-58/dp/7200821 <-- expensive!!!
[1:01] * Fid (Fid@unaffiliated/fid) Quit ()
[1:01] <JakeSays> yikes
[1:02] <JakeSays> i could make one for much less than that
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[1:03] <gordonDrogon> yea, rusty nail & some ecw.
[1:03] <gordonDrogon> actually, not a nail!
[1:04] <JakeSays> would work for a solenoid tho
[1:04] <gordonDrogon> yep.
[1:04] <gordonDrogon> old pen tube..
[1:05] <JakeSays> i also have a bunch of vibrator motors that i could use to trip the door
[1:05] <JakeSays> er, vibrating motors
[1:05] * Alfihar (~Yuuka@home.siberios.com) Quit (Quit: Textual IRC Client: www.textualapp.com)
[1:06] <gordonDrogon> mobile phone type, I presume?
[1:07] <gordonDrogon> If you take a standard toothbrush head, strap one of these little motors to it with a coin cell then they wander about flat surfaces like little scurrying ants ...
[1:07] <SpeedEvil> Or sybian.
[1:07] * gordonDrogon mutters something about family friendly...
[1:08] <gordonDrogon> https://projects.drogon.net/wp-content/uploads/2013/03/brush-1024x678.jpg
[1:09] <SpeedEvil> I meant symbian.
[1:09] <Amadiro> gordonDrogon, we have like a million of those at our hackerspace
[1:09] <Amadiro> people love letting them free on the floor
[1:09] <SpeedEvil> They tend to have more powerful vibrators.
[1:09] <gordonDrogon> Amadiro, not Bristol by any chance?
[1:10] <Amadiro> gordonDrogon, nah, oslo
[1:10] <gordonDrogon> Ah. it was a Bristol hackspace thing where I saw that - I guess it's a staple for most hackspaces...
[1:10] <Amadiro> ours are on some sort of rubber brush though, AFAIR
[1:10] <Amadiro> a bit larger
[1:12] <gordonDrogon> I want to make one of these: https://projects.drogon.net/wp-content/uploads/2013/03/relay.jpg and https://projects.drogon.net/wp-content/uploads/2013/03/relays.jpg
[1:12] <gordonDrogon> although I may just emulate it in a Basic program...
[1:12] <SpeedEvil> gordonDrogon: have you seen youtube - I forget the exact title - something like 'harry ...'s relay computer
[1:13] <SpeedEvil> Though he cheats and uses a SRAM for main strorage
[1:13] * steve_rox (~steve@82-69-127-162.dsl.in-addr.zen.co.uk) Quit (Ping timeout: 240 seconds)
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[1:13] <harris> ParkerR, you on
[1:14] <SpeedEvil> I want to say harry seldon, but that's obviously wrong
[1:15] <gordonDrogon> http://www.youtube.com/watch?v=n3wPBcmSb2U
[1:17] <SpeedEvil> Yes.
[1:17] <SpeedEvil> I love the 'chunka chunka' noises.
[1:17] <gordonDrogon> fine line between nutter & genius... :)
[1:19] <SpeedEvil> Quite.
[1:20] <SpeedEvil> https://www.youtube.com/channel/UCivA7_KLKWo43tFcCkFvydw - probably on the right side of the line.
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[1:25] <gordonDrogon> yeeaaaa..
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[1:27] <SpeedEvil> That dude makes me hesitant to watch his videos as he's so awesome he makes me feel bad.
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[1:41] <JakeSays> gordonDrogon: lol actually these are out of disposable tooth brushes
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[1:51] <harris> hey _BigWings_ why do you keep disconecting
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[2:12] <Zync> guys, can i use SSH to access another windows machine? or is it linux limited? I know its a stupid question but i'm just wondering
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[2:12] <SpeedEvil> in general windows has no ssh server
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[2:13] <SpeedEvil> you certainly can't normally access the console
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[2:14] <Zync> what other ways are there to access windows besides remote conection?
[2:14] * teepee (~teepee@p508450D9.dip0.t-ipconnect.de) Quit (Ping timeout: 252 seconds)
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[2:16] <pksato> without third party tools? no.
[2:17] <Xark> Zync: You can try http://www.freesshd.com/ (but I know nothing about it).
[2:17] <Zync> thanks
[2:17] <Xark> Zync: I think cygwin also has a sshd
[2:21] * mgottschlag (~quassel@reactos/tester/phoenix64) Quit (Ping timeout: 260 seconds)
[2:22] <Ricksl> In general what can I use a shell account for?
[2:24] * andrei_chiffa (~andrei_ch@AStrasbourg-551-1-56-31.w83-194.abo.wanadoo.fr) Quit (Ping timeout: 252 seconds)
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[2:26] <SpeedEvil> selling sea shells
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[2:44] <nerdboy> SpeedEvil: don't you mean C shells?
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[2:48] <dagerik> i want spotify on the pi
[2:48] <dagerik> what is the best way?
[2:48] <dagerik> despotify?
[2:49] * coin3d (~coin3d@p5B1672DE.dip0.t-ipconnect.de) Quit (Quit: coin3d)
[2:50] <Zync> is there anything i need to do before remote desktop connection, because it isnt working
[2:51] <Zync> i've already sshed into it
[2:52] * tombrough (~tom@cpc4-newt3-0-0-cust54.newt.cable.virginmedia.com) has left #raspberrypi
[2:52] * Turingi (~devon@unaffiliated/devon-hillard/x-7250961) Quit (Read error: Connection reset by peer)
[2:52] <JakeSays> Zync: what are you trying to do exactly?
[2:53] <Zync> from a windows7 machine Remote desktop connect to it
[2:53] <JakeSays> what is 'it'? the pi?
[2:53] <Zync> i got the ip but it gives me the error saying it cant establish a connection
[2:54] <Zync> yeah the rbp
[2:54] <shiftplusone> There is no remote desktop capability installed/enabled/configured by default, afaik.
[2:54] <JakeSays> you want to connect to the pi from your win7 pc
[2:54] <Zync> but i remember i once did it from my desktop pc...
[2:54] <JakeSays> Zync: vnc
[2:55] <JakeSays> Zync: http://gettingstartedwithraspberrypi.tumblr.com/post/24142374137/setting-up-a-vnc-server
[2:55] <Zync> JakeSays: thanks
[2:56] <shiftplusone> do you want vnc, or do you want rdesktop specifically?
[2:56] <Zync> i'm downloading real vnc, is it any worse/better?
[2:56] <JakeSays> tightvnc works well on both ends
[2:57] <shiftplusone> (sorry, rdesktop is a client, not a server, my mistake)
[2:57] <shiftplusone> Looks like there's Xrdp though
[2:58] <shiftplusone> but vnc is the more popular option, so you'll get a lot more support if you run into trouble.
[2:58] <JakeSays> vnc works surprisingly well
[2:59] * Protux (~Protux@abo-154-129-68.bdx.modulonet.fr) Quit (Quit: Textual IRC Client: www.textualapp.com)
[2:59] <Zync> but i remember accessing it through window's remote desktop connection built in tool
[2:59] <pksato> Xrdp use vnc.
[2:59] <JakeSays> xrdp uses rdp
[2:59] <shiftplusone> or rather vnc is one of the Xrdp backends
[2:59] <JakeSays> oh
[3:00] <shiftplusone> Zync, and you're 100% sure you didn't set it up?
[3:00] <Zync> i don't remember but i prob didn't....i remember fiddling arround in it to enable ssh server, but nothing to do with remote desktop connection
[3:00] <shiftplusone> Zync, I am not aware of any of the main distros coming with rdp and/or vnc enabled by default.
[3:01] <shiftplusone> I may be wrong, but I think I would know if that was the case.
[3:01] <JakeSays> Zync: you need to install the tightvnc server on the pi
[3:01] <JakeSays> and a vnc client on windows
[3:02] <pksato> GUI is not default way to connect a linux box.
[3:02] * darkPassenger (~maxime@unaffiliated/darkpassenger) Quit (Ping timeout: 276 seconds)
[3:02] <Zync> have you got a tutorial on setting it up on the pi?
[3:03] <JakeSays> Zync: setting up what?
[3:03] <Ricksl> rdesktop
[3:03] <Zync> vnc
[3:03] * JakeSays facepalms
[3:03] <shiftplusone> http://elinux.org/RPi_VNC_Server
[3:03] <JakeSays> Zync: that url i pasted.. did you read it?
[3:03] <Ricksl> http://rpitc.blogspot.com/
[3:04] <Ricksl> these guys have a client, I hear its pretty plug and play
[3:04] * prg3 (~prg3@chatter.majestik.org) Quit (Excess Flood)
[3:04] <nerdboy> couldn't resist making another mpd image with e17 instead of openbox...
[3:04] <JakeSays> Ricksl: so i have a small 3v dc motor. what would be the suggested way of driving it? through a relay?
[3:05] <Ricksl> depends, how much current is it using?
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[3:05] <JakeSays> Ricksl: between .012 and .042
[3:05] <JakeSays> at 3v
[3:05] <pksato> Zync: what are you really trying to do?
[3:06] <nerdboy> vnc is pretty simple
[3:06] <nerdboy> install vnc-server and run it
[3:06] * cmasta (~cmasta@c-98-246-11-70.hsd1.or.comcast.net) Quit (Quit: Leaving.)
[3:06] <Ricksl> Personally I wouldn't mind, but if you want an extra layer of security, use a transistor, a relay would be way overkill.
[3:07] <nerdboy> then edit .vnc/xstartup and launch the xsession you want
[3:07] * Kaboon (kaboon@524A5520.cm-4-3b.dynamic.ziggo.nl) has joined #raspberrypi
[3:07] <nerdboy> restart vncserver and then login from somewhere else with vncviewer
[3:08] * harris (~harris@unaffiliated/harris) Quit (Ping timeout: 260 seconds)
[3:08] <Zync> pksato: remote desktop connect into the pi through win7
[3:08] <Ricksl> If you want simplicity and the ability to drive something larger later, you can use a mosfet, but if your math is good and you don't mind brushing up on bipolar junction transistor theory the by all means.
[3:08] <Ricksl> then by all means*
[3:08] <pksato> JakeSays: best way to drive motor, is a h-bridge. can control direction.
[3:08] <Zync> pksato: I remember once it worked by using the built in windows tool just by the ip but it isnt working now
[3:08] <JakeSays> Zync: just use vnc. rdp isn't going to work well in that scenario
[3:09] <nerdboy> gnome supports rdesktop
[3:09] <JakeSays> pksato: yeah i'm running short on h-bridges
[3:09] <pksato> Zync: you have access direct access to rpi?
[3:09] * onder` (~onder@ Quit (Quit: leaving)
[3:09] <Zync> i sshed into it, but i want to use my laptop to remotely access it
[3:09] <pksato> default rpi linux have olny ssh remote acess.
[3:10] <pksato> ?
[3:10] <pksato> use putty on widows to have a ssh client.
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[3:10] <JakeSays> Ricksl: i have one transister - a 2N3904
[3:10] <shiftplusone> pksato, he already has ssh working, he wants the desktop now.
[3:10] <Ricksl> If I need bidirection then I use a stepper or a continuous rotation servo
[3:11] <pksato> I think, you seeking for putty.
[3:11] <Ricksl> hm
[3:11] <Zync> putty is already up and running
[3:11] <Zync> i want to rdp to it
[3:11] <pksato> very confused question. :)
[3:11] <Zync> lol srry
[3:11] <shiftplusone> the question is fine.
[3:12] <JakeSays> Zync: stop thinking rdp - use vnc
[3:12] * ukgamer (~ukgamer@host86-176-195-104.range86-176.btcentralplus.com) Quit (Read error: Operation timed out)
[3:12] <pksato> Zync: rpi dont have RDP. RDP is windows stuff.
[3:12] <Ricksl> Man I actually haven't used npn transistor gain equations in awahile.
[3:12] <Zync> JakeSays: I am but it idn't working, im prob doing something wrong
[3:12] <shiftplusone> pksato, there are plenty of options for RDP on linux.
[3:12] <JakeSays> Zync: you are because it works perfectly
[3:12] <Ricksl> I am ashamed to say that most of what I do with electronics is logic based or uses a microcontroller.
[3:12] <pksato> if yu which access to running desktop. use x11vnc
[3:13] <pksato> or, if need a separate sesssion, use xvnc.
[3:13] <JakeSays> shiftplusone: rdp client, but running an rdp server on linux wouldn't make too much sense since rdp is highly windows specific
[3:13] <shiftplusone> JakeSays, yet if that's what he wants to do, it's an option.
[3:13] <shiftplusone> Though I agree straight vnc makes more sense
[3:14] <Zync> ok i already have a server running on 1 but it isnt working now
[3:14] <JakeSays> Zync: how did you try to connect to it?
[3:14] <pksato> if, you dont want to install vnc client on windows, install xrdp on rpi.
[3:14] <Zync> what do i do with tight vnc in windows?
[3:14] <shiftplusone> Zync, maybe tell us exactly what you did and what you're doing.
[3:14] * ozzzy (~ozzzy@bas1-london16-2925404137.dsl.bell.ca) Quit (Read error: Connection reset by peer)
[3:14] <nerdboy> Zync: you need xrdp enabled on the pi side
[3:14] <pksato> xrdp connect to existing vnc session (x11vnc or xvnc)
[3:14] <Zync> with vnc??
[3:14] * shiftplusone sighs
[3:15] <nerdboy> either that or vnc if you want a remote x desktop
[3:15] <Zync> i'm using tight vnc
[3:15] <pksato> Zync: start a vnc session on rpi.
[3:15] <shiftplusone> I think zync is going to storm out in anger soon since he is getting conflicting answers >_<
[3:15] <JakeSays> Zync: you run the tightvnc client in windows, to connect to the tightvnc server running on the pi
[3:15] <nerdboy> then run vncserver on the pi and edit the xtsratup file
[3:15] <pksato> forget xrdp.
[3:15] <nerdboy> *xstartup even
[3:15] <pksato> atm.
[3:16] <nerdboy> the default is twm and xterm
[3:16] <pksato> install vnc client on windows.
[3:16] <nerdboy> just make it start fluxbox or something
[3:16] <pksato> install x11vnc on rpi
[3:16] <Zync> LOL I MUST BE RETARDED i was using the server isntead of the viewer -.-
[3:17] <shiftplusone> Zync, server goes on the pi, the viewer goes on windows.
[3:17] <Ricksl> let me find a tutorial and brush up jake, to be fair most electronics are digital now and mosfets are more plug and play.
[3:17] <nerdboy> yup
[3:17] <Zync> shiftplusone: lol ofc, its working now thanks everyone
[3:17] <shiftplusone> excellent
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[3:20] <nerdboy> xrdp works pretty well too, but it's a little more compicate dto setup if it's not already working out-of-the-box...
[3:20] * Zottelchen (~Zottelche@dslb-178-000-074-027.pools.arcor-ip.net) has joined #raspberrypi
[3:20] <nerdboy> s/dto/to
[3:21] <eggy> goo
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[3:29] * onder` (~onder@ Quit (Quit: leaving)
[3:29] <Zottelchen> Can someone tell me how I can integrate an image in my Python script? Like the RPI logo when booting up or http://openbook.galileocomputing.de/it_handbuch/bilder/07_002.png
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[3:42] <JakeSays> when i gpio write 7 1, does it pulse the pin, or tie it high?
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[3:48] <Ricksl> pretty sure it ties it high
[3:48] <JakeSays> i built a little transistor controlled led circuit
[3:48] <JakeSays> when i write 1, the led blinks
[3:49] <pksato> 7 isping 7 or gpio 7?
[3:49] <pksato> is pin
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[3:49] <JakeSays> pksato: um.. good question - i believe its both
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[3:50] <JakeSays> pksato: yeah i think wiringpi maps 7 to phys pin 7
[3:50] <pksato> 7 is pin 7 on header. bcm gpio 4.
[3:50] <JakeSays> right
[3:51] <JakeSays> but wiringpi maps 7 to phys pin 7
[3:51] <pksato> try 11
[3:51] <pksato> some pins have kernel modules using it.
[3:52] <JakeSays> 11 didnt do anything
[3:52] <pksato> 15?
[3:53] <JakeSays> 15 physical?
[3:53] * Zottelchen (~Zottelche@dslb-188-106-003-239.pools.arcor-ip.net) Quit (Read error: Connection reset by peer)
[3:53] <pksato> yes
[3:54] <Ricksl> use the chart in the elinux article about rpi gpio
[3:55] <pksato> http://elinux.org/images/2/2a/GPIOs.png
[3:56] <pksato> use green pins.
[3:57] <pksato> sure if no others are using the pin.
[3:57] <Ricksl> you can free up more if you disable the serial initialization in the boot.txt
[3:58] <Ricksl> cmdline I meant
[3:59] <JakeSays> Ricksl: disable by removing: console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 ?
[3:59] <pksato> disabling uart, i2c and spi you have all pins.
[4:00] <JakeSays> my cmdline has none of those in it
[4:02] <\\Mr_C\\> i see they released a new raspberry pi image...what about a newer installer?
[4:02] <shiftplusone> 'NOOBS'?
[4:03] <\\Mr_C\\> scroobs?
[4:03] <Ricksl> so spi and i2c usually aren't initialized at startup unless you have some startup script doing it. give me a sec to figure out the uart
[4:03] <shiftplusone> I guess it's not publicly available yet =/
[4:04] <\\Mr_C\\> thanks
[4:06] <JakeSays> hmm. that is just weird that i can't get it to stick high
[4:07] <shiftplusone> \\Mr_C\\, looks like it's here http://downloads.raspberrypi.org/images/recovery/recovery_v1_1_complete/
[4:08] <shiftplusone> If it's what I think it is, you just format the card as fat32, extract the files on there and just boot up the pi with the card inserted.
[4:08] <\\Mr_C\\> umm
[4:09] <\\Mr_C\\> i was refereing to http://archive.raspbian.org/installer/rpi_installer_08-19-12.zip
[4:09] <Ricksl> are you setting them as a read or write port JakeSays
[4:09] <\\Mr_C\\> thanks though
[4:09] <shiftplusone> Oh, ask the #raspbian folks >.>
[4:09] <JakeSays> Ricksl: write
[4:09] <\\Mr_C\\> i did
[4:09] <\\Mr_C\\> waiting for reply
[4:09] <Ricksl> so you are following this http://elinux.org/RPi_Low-level_peripherals#Bash_shell_script.2C_using_sysfs.2C_part_of_the_raspbian_operating_system
[4:09] <shiftplusone> fair enough
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[4:10] <orangerobot> is it reasonable to use a raspberrypi to build a 3d printer? has it been attempted?
[4:10] <JakeSays> Ricksl: no i'm using the wiringpi gpio tool
[4:10] <Ricksl> O
[4:11] <orangerobot> (i'm a total noob, I don't even know whether you could use raspberry pi for that)
[4:11] <Ricksl> Its possible but much easier with other boards so probably not.
[4:11] <shiftplusone> Why is it 'much easier'?
[4:12] <Ricksl> 3d printers use stepper motors to move their print heads and print bead
[4:12] <Ricksl> bed*
[4:12] * cmasta (~cmasta@c-98-246-11-70.hsd1.or.comcast.net) has joined #raspberrypi
[4:13] <Ricksl> pi has limited gpio, and if you use lets just say an i2c port expander or shift register you would sacrifice accuracy and speed.
[4:14] <shiftplusone> fair enough, though a pi working with an arduino might not be a bad idea.
[4:14] <Ricksl> I have seen a few arduino mega 3d printers.
[4:14] <shiftplusone> I wouldn't call just using a pi unreasonable though... might not be ideal.
[4:14] <Ricksl> A quick search shows that most use cases involve a pi just relaying instructions to a controller board over usb
[4:16] <Ricksl> Most hobby 3d printers need to be tethered to a computer to continually recieve their print instructions (move bed along this axis for this long blah blah blah) so it makes sense to use a low power computer to essentially untether it.
[4:16] <maxinux> tey do?
[4:16] <maxinux> thats news to me...
[4:16] <maxinux> im printing via SD card right now
[4:16] <Ricksl> what model do you have, ultimaker?
[4:16] <maxinux> nope
[4:16] <maxinux> made my own
[4:17] <maxinux> powered via ramps, sanguinolu and azteeg
[4:17] <Ricksl> You using that one driver board.
[4:17] <JakeSays> i would love to build a 3d printer!
[4:17] <maxinux> there are many control board options
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[4:18] <Ricksl> I looked into it, but my school has a professional one and even seeing the hobbyist ones or self made ones makes me sad, knowing I will never reach the quality of prints it puts out.
[4:19] <maxinux> lol
[4:19] <maxinux> that is quite inaccurate
[4:20] <Ricksl> The ability to use support material and a closed thermal envelope makes the prints look much nicer than what I have seen from repraps
[4:20] <maxinux> support material is available also in open source software
[4:20] <Ricksl> How many hobbyist 3d printers have dual extruder heads
[4:20] <maxinux> some have 3
[4:21] <Ricksl> they exist but are far and few inbetween
[4:21] <Ricksl> I wouldn't doubt it.
[4:21] <maxinux> doesnt make it better
[4:22] <Ricksl> Well now you are just arguing for the sake of arguing.
[4:22] <maxinux> no
[4:22] <maxinux> dual extruders is not necesarily better
[4:22] <maxinux> multiple colors is not the purpose of a 3d printer
[4:22] <maxinux> the only advantage is using PVA as support material
[4:22] <maxinux> and the extent of that is limited
[4:22] * ozzzy wants a printer that will do aluminum
[4:24] <maxinux> SLS
[4:24] <maxinux> has its own limitations
[4:24] * Code_Bleu (~Code_Bleu@64-191-149-154.service.qx.net) has joined #raspberrypi
[4:25] <johnc-> can you get arrested for printing guns yet?
[4:26] <JakeSays> johnc-: only you can.
[4:26] <Ricksl> prevent forest fires.
[4:26] <ozzzy> http://www.youtube.com/watch?v=zApmGFDA6ow <-- awesome
[4:26] <johnc-> JakeSays: lol, sadly as an immigrant I wouldn't take my chances :P
[4:26] <JakeSays> johnc-: where are you from?
[4:26] <johnc-> england
[4:27] * taza (~zap@unaffiliated/taza) Quit (Quit: No longer here)
[4:27] <JakeSays> ah well yeah best not to trust you britts :p
[4:27] <Ricksl> You could get away with it
[4:27] <Ricksl> as long as you don't speak spanish as a first language.
[4:27] <Ricksl> and stay out of the midwest and south
[4:28] <JakeSays> so i want to connect an led to my pi. apparently a 270 ohm resistor is the one to use, but i dont have one. what would be the next best thing?
[4:28] <Ricksl> do you have multiple smaller resistance resistors?
[4:29] <pksato> any value 100 to 1000 are fine.
[4:29] <Ricksl> yeah really any resistor between those values you would be good since hte output is only 3 volts
[4:31] <JakeSays> i have a 220
[4:31] <Ricksl> thats fine
[4:33] <orangerobot> what's a good 'kit' for someone with a fairly decent CS background who wants to play a little with RaspberryPI?
[4:34] <orangerobot> one that's available internationally, preferably
[4:35] <Ricksl> Adafruit sells a pretty good kit
[4:35] <JakeSays> orangerobot: kit? a monitor, keyboard and powersupply are all you need
[4:35] <JakeSays> oh and an sd card
[4:35] <Ricksl> i think he wants to play with gpio
[4:36] <Ricksl> speaking of adafruit ask an engineer is on right now
[4:37] <orangerobot> hmmm
[4:37] <JakeSays> dang. with nothing but an led and resistor, writing to the pin only pulses the led
[4:37] <orangerobot> thanks
[4:37] <Ricksl> also makershed
[4:38] <orangerobot> i love these things I'm just sad I'll have to pay over 60% on import taxes
[4:38] <JakeSays> something is wrong
[4:38] <pksato> JakeSays: test with 3.3V pin.
[4:38] <Ricksl> and then farnell/element14 makes kits
[4:38] <pksato> test the led.
[4:38] <JakeSays> pksato: ah ok
[4:38] <JakeSays> pksato: it is on
[4:38] <pksato> have a special led that blink. Once or more times.
[4:39] <JakeSays> no its steady when tied to pin 1
[4:39] <pksato> or, gpio are reseting pin on exit.
[4:40] <JakeSays> pksato: ah i bet thats it
[4:40] <pksato> that, not make sense.
[4:40] <Ricksl> like i said jake try doing it through bash
[4:40] <JakeSays> Ricksl: i'll try that now
[4:41] * Code_Bleu (~Code_Bleu@64-191-149-154.service.qx.net) Quit (Read error: Connection reset by peer)
[4:42] <pksato> JakeSays: you set mode before?
[4:42] <pksato> gpio mode out
[4:42] <JakeSays> pksato: yes
[4:43] <pksato> gpio mode pin out
[4:45] <pksato> try: gpio read pin; gpio write pin 0; gpio read pin; gpio write pin 1; gpio read pin
[4:45] <JakeSays> Ricksl: it blinks with bash as well :(
[4:45] <orangerobot> so the SD card is, in effect, the hard disk?
[4:46] <Ricksl> Don't know what to tell you bro, thats just weird.
[4:46] <Ricksl> yes orangerobot, the operating system and everything is stored on it
[4:46] <pksato> JakeSays: resistor are correct value? is not 22 Ohms?
[4:46] <JakeSays> pksato: its 216 ohms according to my meter
[4:47] <pksato> 220 coloar are red red brown any
[4:48] <pksato> ~8mA, is safe.
[4:49] <pksato> test pin state with voltameter.
[4:49] <pksato> without led.
[4:49] * duckinator (nick@botters/staff/duckinator) Quit (Quit: Nickname collision due to Services enforced nickname change, your nick was overruled)
[4:51] <JakeSays> pksato: it pulses but doesnt stay high
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[4:53] <pksato> weird
[4:54] <pksato> do a gpio unexportall and set again.
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[5:09] <JakeSays> hmm. i switched to a different pi and the same thing happens
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[5:10] <JakeSays> is it safe to connect two gpio pins together?
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[5:11] <Triffid_Hunter> JakeSays: only if one is an input
[5:12] * Zync (55f0f7f2@gateway/web/freenode/ip. Quit (Ping timeout: 250 seconds)
[5:13] <JakeSays> ok so if i tie an input to an output, then write 1 to the output, the input should be high?
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[5:17] <Ricksl> Anyone know a firewall that can block skype?
[5:17] <Triffid_Hunter> JakeSays: yep
[5:18] <JakeSays> Ricksl: i think pretty much any firewall could block it
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[5:18] <Ricksl> Aparently not
[5:18] <Ricksl> it uses dynamic port negotiation
[5:19] <johnc-> so block the port it does that on
[5:19] <Ricksl> so I isn't as simple as block the common voip port, ontop of that it doesn't use a domain name for anything so dns is out of the question
[5:19] <JakeSays> Ricksl: bah! servoblaster was messing with me!
[5:19] <Ricksl> it communicates with skype servers via port 80 so if i block that no one in the house will be able to browse the internet
[5:20] <Ricksl> well ain't that a bitch
[5:20] <johnc-> JakeSays: I admit I'm enjoying watching you not know everything about everything for once :P
[5:20] <JakeSays> johnc-: yes, in here i'm a total noob :p
[5:20] <johnc-> "dpesm
[5:20] <johnc-> opps
[5:20] <johnc-> "doesn't use a domain name"
[5:20] <johnc-> so block the IP
[5:20] <Ricksl> the servers are dynamic
[5:20] <Ricksl> can't block ip or dns name
[5:21] <Ricksl> well I could, won't do anything
[5:21] <Triffid_Hunter> Ricksl: you need an L7 filter
[5:21] <JakeSays> man i just love spending two hours chasing ghosts
[5:21] <Triffid_Hunter> Ricksl: it'll have to use dns at some point to find the list of current supernodes...
[5:21] <Ricksl> better than chasing the purple dragon.
[5:22] <Ricksl> I have tried blocking all the ones open dns tells me it uses, for example, apps.skype.com api.skype.com ect
[5:22] <Ricksl> there was a good dozen that I blocked, no effect
[5:25] <Ricksl> and upon further inspection of my open dns domain history, all my porn browsing is recorded... well damn
[5:25] <JakeSays> lol
[5:25] <ParkerR> Haha
[5:25] <Ricksl> It is such a blessing to have a technologically ignorant family.
[5:25] <Ricksl> They couldn't tell you what a dns is none the less that I am using an open dns account under my credentials
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[5:28] <ParkerR> Don't mind me. Just rewinding a level of Mario http://www.youtube.com/watch?v=3JgKM9YLd0U
[5:28] <JakeSays> woo! i got sticky led's!
[5:29] <Ricksl> way to go jake
[5:29] <Ricksl> soon you will be able to do motors, then the world
[5:29] <JakeSays> ok now back to my motor
[5:30] <Ricksl> remember diode bridging the motor leads in reverse
[5:30] <JakeSays> i dont have a diode
[5:30] <Ricksl> I wouldn't let it touch my pi unless it had protection
[5:31] <JakeSays> i'm using a transistor
[5:31] <Ricksl> Don't you dare let it deflorate your darling
[5:31] <Ricksl> oh, then your transistor might burn out eventually.
[5:31] <johnc-> diodes are electronic condoms
[5:31] <Ricksl> This guy gets it.
[5:31] <JakeSays> Ricksl: better the transistor than my pi!
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[5:31] <Ricksl> first the transistor, then your pi
[5:31] * johnc- still has nightmares involving full wave rectifiers
[5:33] <Ricksl> https://www.youtube.com/watch?v=Te5YYVZiOKs
[5:33] <Ricksl> heh rectifiers, the dark days of ac to dc
[5:33] <Ricksl> btw thats for you jak
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[5:37] <Ricksl> well east coast sucks im out for the night, glad you got that working jake.
[5:37] <Ricksl> you should make a blog archiving your adventures in beginner electronics.
[5:37] <JakeSays> Ricksl: hey thanks for your help!
[5:38] <Ricksl> What did I do?
[5:38] <JakeSays> you provide info :)
[5:39] <Ricksl> Oh you flatter me, you would have figured it out.
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[5:45] <Triffid_Hunter> JakeSays: when you turn off power to a coil, it makes whatever voltage necessary to keep the current flowing. the diode is there so that "voltage necessary" is only ~0.7v or so. without the diode, the coil will make whatever voltage necessary to blow holes in your transistor's silicon
[5:45] * KiltedPi (KiltedPi@host-78-151-120-135.as13285.net) Quit ()
[5:45] <Triffid_Hunter> JakeSays: most electric motors are just coils in fancy configurations
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[8:13] * oldtopman (~oldtopman@unaffiliated/oldtopman) Quit (Quit: *poof*)
[8:14] * KindOne (KindOne@colchester-lug/silly-fool/donut) has joined #raspberrypi
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[8:16] * Espen-_- (espen@unaffiliated/espen---/x-0861799) has joined #raspberrypi
[8:16] * daswort (~daswort@ubuntuusers/wikiteam/daswort) has joined #raspberrypi
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[8:17] * fortytwo (~thomas@who.let.this.bloody.dropbear.in) has joined #raspberrypi
[8:18] * maurosr (maurosr@nat/ibm/x-wzitxlwphuxzkjwy) has joined #raspberrypi
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[8:18] * Kripton (kripton-fr@staff.kripserver.net) has joined #raspberrypi
[8:18] * enque (~enque@ip70-160-27-9.hr.hr.cox.net) Quit (Quit: enque)
[8:18] * Lord_DeathMatch (Lord_Death@static. has joined #raspberrypi
[8:19] * ohhmaar (ohhmaar@irc.louis6321.com) has joined #raspberrypi
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[8:21] * Gallomimia (~gallo@key.cha0sgaming.net) has joined #raspberrypi
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[8:21] * ladoga (~ladoga@a88-113-178-181.elisa-laajakaista.fi) has joined #raspberrypi
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[8:21] * lee (~lee@loathe.ms) has joined #raspberrypi
[8:22] * datagutt (~datagutt@unaffiliated/datagutt) Quit (Ping timeout: 252 seconds)
[8:25] * ldav15 (~ldavis@ has joined #raspberrypi
[8:25] * Visage (~visage@pdpc/supporter/active/visage) has joined #raspberrypi
[8:28] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[8:28] * anildigital_work (uid385@gateway/web/irccloud.com/x-wmqehslherejwzix) Quit (Quit: Connection closed for inactivity)
[8:32] * AmbassadorMatt (~DarkestLi@c-76-103-93-252.hsd1.ca.comcast.net) Quit (Write error: Broken pipe)
[8:33] * tdy (~tim@unaffiliated/tdy) Quit (Read error: Connection reset by peer)
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[8:36] * ldav15 (~ldavis@ Quit (*.net *.split)
[8:36] * savardc (~savardc@iconoclast.caedmon.net) Quit (*.net *.split)
[8:36] * Gallomimia (~gallo@key.cha0sgaming.net) Quit (*.net *.split)
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[8:36] * Alenah (~kp@yeahunter.hu) Quit (*.net *.split)
[8:36] * Helldesk (tee@krouvi.kahvipannu.fi) Quit (*.net *.split)
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[8:36] * lee (~lee@loathe.ms) Quit (*.net *.split)
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[8:38] * dewm (~dewm@c-76-98-17-243.hsd1.pa.comcast.net) Quit (Quit: dewm)
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[8:44] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[8:51] * turtlethumper (~turtlethu@c-98-198-128-151.hsd1.tx.comcast.net) Quit (Quit: Leaving)
[8:53] * JlRd (~JlRd@ip68-109-174-116.ph.ph.cox.net) has joined #raspberrypi
[8:54] * MadeAllUp (~Gen-M@cpc4-haye19-2-0-cust443.17-4.cable.virginmedia.com) Quit (Ping timeout: 245 seconds)
[8:56] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[8:58] * Shirakawasuna (~Shirakawa@184-77-202-94.war.clearwire-wmx.net) has joined #raspberrypi
[8:58] * Megaf (~Megaf@unaffiliated/megaf) has joined #raspberrypi
[9:00] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:01] * dan2k3k4 (~dan2k3k4@unaffiliated/dan2k3k4) Quit (Remote host closed the connection)
[9:01] * sphenxes (~sphenxes@91-119-56-167.dynamic.xdsl-line.inode.at) has joined #raspberrypi
[9:04] * Dyskette (~freja@cpc8-warw15-2-0-cust22.3-2.cable.virginmedia.com) has joined #raspberrypi
[9:07] * orangerobot (~chatzilla@ Quit (Quit: ChatZilla 0.9.90 [Firefox 20.0/20130329030848])
[9:09] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:13] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:15] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:17] * kers (kers@meh.kers.se) has joined #raspberrypi
[9:18] <joako> Is there any possibility to use more than 1 serial port through the GPIO?
[9:19] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:20] * kers (kers@meh.kers.se) Quit (Read error: Operation timed out)
[9:23] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[9:27] * dan2k3k4 (~dan2k3k4@unaffiliated/dan2k3k4) has joined #raspberrypi
[9:28] * dan2k3k4 (~dan2k3k4@unaffiliated/dan2k3k4) Quit (Remote host closed the connection)
[9:31] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:34] <gordonDrogon> morning.
[9:34] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:34] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) has joined #raspberrypi
[9:34] <gordonDrogon> joako, you can connect many usb serial adapters...
[9:37] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:38] <joako> gordonDrogon, I understand that, but I wish to avoid USB
[9:40] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:43] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:43] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Ping timeout: 276 seconds)
[9:46] * cccyRegeane_Away is now known as cccyRegeaneWolfe
[9:46] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:48] * kers (kers@meh.kers.se) has joined #raspberrypi
[9:48] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:51] * kers (kers@meh.kers.se) Quit (Read error: Operation timed out)
[9:52] * cm13g09 (~chrism@panther.cmtechserv.co.uk) Quit (Remote host closed the connection)
[9:52] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[9:54] <Xark> joako: I think it may be possible to use two (other than emulated ports).
[9:57] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[9:58] * Datalink|Elsewhe (~Datalink@unaffiliated/datalink) has joined #raspberrypi
[9:59] * Datalink (~Datalink@unaffiliated/datalink) Quit (Ping timeout: 245 seconds)
[10:00] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
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[10:01] * JlRd (~JlRd@ip68-109-174-116.ph.ph.cox.net) Quit (Ping timeout: 252 seconds)
[10:03] * ldav15 (~ldavis@ Quit (Read error: Operation timed out)
[10:04] * ldav15 (~ldavis@ has joined #raspberrypi
[10:04] * Protux (~Protux@abo-154-129-68.bdx.modulonet.fr) has joined #raspberrypi
[10:05] * Lupinedk is now known as lupinedk
[10:06] * Mortvert (~Mortvert@reddit/operator/mortvert) Quit (Ping timeout: 240 seconds)
[10:06] * hyperair (~hyperair@ubuntu/member/hyperair) Quit (Ping timeout: 260 seconds)
[10:09] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[10:11] * Mortvert (~Mortvert@reddit/operator/mortvert) has joined #raspberrypi
[10:13] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
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[10:16] * peemox (ae73632e@gateway/web/freenode/ip. has joined #raspberrypi
[10:17] * mgottschlag (~quassel@reactos/tester/phoenix64) has joined #raspberrypi
[10:17] * cm13g09 (~chrism@panther.cmtechserv.co.uk) Quit (Disconnected by services)
[10:17] <peemox> What IRC client do you guys like best for RPi?
[10:17] * user82 (~user82@unaffiliated/user82) has joined #raspberrypi
[10:18] * dreamon (~dreamon@unaffiliated/dreamon) has joined #raspberrypi
[10:21] * harris (~harris@unaffiliated/harris) Quit (Ping timeout: 240 seconds)
[10:23] * bizzard (~bizzard@ Quit (Ping timeout: 276 seconds)
[10:23] * peemox (ae73632e@gateway/web/freenode/ip. Quit (Quit: Page closed)
[10:26] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[10:30] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[10:32] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[10:33] <Chaz6> weechat
[10:34] * tanuva (~tanuva@ has joined #raspberrypi
[10:36] * dan2k3k4 (~dan2k3k4@unaffiliated/dan2k3k4) has joined #raspberrypi
[10:36] * andrei_chiffa (~andrei_ch@AStrasbourg-551-1-56-31.w83-194.abo.wanadoo.fr) has joined #raspberrypi
[10:36] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[10:39] <TacitBlue> irssi
[10:39] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[10:39] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) has joined #raspberrypi
[10:41] * bts__ is using irssi, but prefers weechat ;f
[10:41] * tig| (~tig@tig.gotadsl.co.uk) Quit (Read error: Connection reset by peer)
[10:41] * Kev- (~kev@7-84-126-149.ftth.simafelagid.is) Quit (Ping timeout: 240 seconds)
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[10:45] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[10:46] * guiambros (~guiambros@z65-50-88-217.ips.direcpath.com) Quit (Ping timeout: 246 seconds)
[10:48] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[10:48] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Ping timeout: 276 seconds)
[10:51] * bsdfox (~Bob@unaffiliated/bsdfox) Quit (Ping timeout: 256 seconds)
[10:51] * Gethiox (~gethiox@host-2-121.24.net.pl) has joined #raspberrypi
[10:54] * [SkG] (~sconde@unaffiliated/skg/x-897332) has joined #raspberrypi
[10:54] * sjs205 (~sjs205@host109-157-67-241.range109-157.btcentralplus.com) has joined #raspberrypi
[10:54] * Turingi (~devon@unaffiliated/devon-hillard/x-7250961) has joined #raspberrypi
[10:56] * berak (~chatzilla@ has joined #raspberrypi
[10:59] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:00] * xCP23x (~xCP23x@ has joined #raspberrypi
[11:03] * astralab (~astralab@d192-24-207-72.col.wideopenwest.com) Quit (Ping timeout: 252 seconds)
[11:03] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[11:03] <gordonDrogon> joako, there is a 2nd serial port which you may be able to dig-out of the gpio pins, but AIUI there isn't a driver for it yet.
[11:04] <gordonDrogon> doing it by bit-banging is not going to be reliable.
[11:04] <gordonDrogon> might work at very low bauds though.
[11:05] * astralab (~astralab@d192-24-207-72.col.wideopenwest.com) has joined #raspberrypi
[11:07] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[11:10] * Gussi (~gussi@ has joined #raspberrypi
[11:10] * cccyRegeaneWolfe (~cccyRegea@www.regeane.com) Quit (Quit: Ping timeout)
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[11:12] * zokeber (~Zokeber@unaffiliated/zokeber) Quit (Remote host closed the connection)
[11:12] * NIN101 (~NIN@p5DD29BA0.dip0.t-ipconnect.de) has joined #raspberrypi
[11:13] * cccyRegeaneWolfe (~cccyRegea@www.regeane.com) has joined #raspberrypi
[11:15] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:19] * tanuva (~tanuva@ Quit (Read error: Connection reset by peer)
[11:19] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[11:19] * lupinedk is now known as Lupinedk
[11:21] * daswort (~daswort@ubuntuusers/wikiteam/daswort) Quit (Ping timeout: 240 seconds)
[11:22] * daswort (~daswort@ubuntuusers/wikiteam/daswort) has joined #raspberrypi
[11:25] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:27] * Espen-_- is now known as EspenN
[11:27] * SgrA (~sgra@gateway/tor-sasl/sgra) Quit (Ping timeout: 240 seconds)
[11:27] * ItsMeLenny (~ItsMeLenn@CPE-121-216-122-12.lnse2.ken.bigpond.net.au) Quit (Quit: Leaving)
[11:28] * heathkid|2 (~heathkid@unaffiliated/heathkid) has joined #raspberrypi
[11:28] * heathkid (~heathkid@unaffiliated/heathkid) Quit (Disconnected by services)
[11:29] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[11:31] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:33] * Artpicre (~Artpicre@vit94-10-78-240-193-57.fbx.proxad.net) has joined #raspberrypi
[11:34] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[11:37] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:40] * SgrA (~sgra@gateway/tor-sasl/sgra) has joined #raspberrypi
[11:40] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[11:44] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) has joined #raspberrypi
[11:45] * coin3d (~coin3d@p5B167848.dip0.t-ipconnect.de) has joined #raspberrypi
[11:47] * dc5ala (~dc5ala@stgt-4d03aab3.pool.mediaWays.net) has joined #raspberrypi
[11:48] * chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) has joined #raspberrypi
[11:51] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:52] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Ping timeout: 246 seconds)
[11:55] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[11:55] * esing (~esing@unaffiliated/esing) has joined #raspberrypi
[11:57] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[11:58] * Criztian (~criztian@cust.static.46-14-92-114.swisscomdata.ch) has joined #raspberrypi
[12:01] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[12:01] * Criztian (~criztian@cust.static.46-14-92-114.swisscomdata.ch) Quit (Remote host closed the connection)
[12:03] * owen_ (~owen@ Quit (Quit: Konversation terminated!)
[12:03] * Shirakawasuna (~Shirakawa@184-77-202-94.war.clearwire-wmx.net) Quit (Ping timeout: 256 seconds)
[12:05] * ThJ (thor@ninjafrogs.com) has joined #raspberrypi
[12:06] <ThJ> how is the RPi with USB isoc transfers?
[12:06] * m8 (~mor@unaffiliated/m8) has joined #raspberrypi
[12:08] * BlackBishop (~dexter@5-12-11-31.residential.rdsnet.ro) has joined #raspberrypi
[12:09] <BlackBishop> anyone here using http://omxplayer.sconde.net/ builds ?
[12:09] <BlackBishop> ever since > 0.2.4 .. they're linked against some libavutil52 .. and I only have libavutil51 in the repos
[12:09] <BlackBishop> Any ideas ?
[12:11] * Jevermeister (~Jevermeis@unaffiliated/jever) has joined #raspberrypi
[12:13] * darkbasic (~quassel@niko.linuxsystems.it) Quit (Quit: No Ping reply in 180 seconds.)
[12:14] * darkbasic (~quassel@niko.linuxsystems.it) has joined #raspberrypi
[12:16] * MidnighToker (~Toker@unaffiliated/midnightoker) has joined #raspberrypi
[12:19] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[12:21] * onder` (~onder@ Quit (Quit: leaving)
[12:22] * onder` (~onder@ has joined #raspberrypi
[12:22] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[12:23] * redarrow_ is now known as redarrow
[12:24] * micges (~micges@dgx27.neoplus.adsl.tpnet.pl) has joined #raspberrypi
[12:25] * nxtec (~tth@cpc1-lanc6-2-0-cust124.3-3.cable.virginmedia.com) has joined #raspberrypi
[12:26] * ItsMeLenny (~ItsMeLenn@CPE-121-216-122-12.lnse2.ken.bigpond.net.au) has joined #raspberrypi
[12:27] * Jevermeister (~Jevermeis@unaffiliated/jever) Quit (Quit: /)
[12:27] * ItsMeLenny (~ItsMeLenn@CPE-121-216-122-12.lnse2.ken.bigpond.net.au) has left #raspberrypi
[12:27] * dreamon (~dreamon@unaffiliated/dreamon) Quit (Quit: Ex-Chat)
[12:30] * Jevermeister (~Jevermeis@unaffiliated/jever) has joined #raspberrypi
[12:31] * AeroNotix (~xeno@abor102.neoplus.adsl.tpnet.pl) has joined #raspberrypi
[12:32] * satellit_e (~satellit@ Quit (Quit: Leaving)
[12:33] * kcj (~casey@unaffiliated/kcj) Quit (Ping timeout: 240 seconds)
[12:34] * Lupinedk is now known as lupinedk
[12:37] * zoktar (~zoktar@unaffiliated/zoktar) has joined #raspberrypi
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[12:38] * Alt_of_Ctrl (~Alt_of_Ct@bl13-135-91.dsl.telepac.pt) has joined #raspberrypi
[12:41] * jakeri (~gfgf@a88-113-154-120.elisa-laajakaista.fi) Quit (Quit: ( www.nnscript.com :: NoNameScript 4.22 :: www.esnation.com ))
[12:44] * VitaBushido (~avem@unaffiliated/avem) Quit (Quit: I quit)
[12:46] * Protux (~Protux@abo-154-129-68.bdx.modulonet.fr) Quit (Quit: Textual IRC Client: www.textualapp.com)
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[12:47] * alexwhitman (~alexwhitm@87-194-159-116.bethere.co.uk) Quit (Quit: ZNC - http://znc.in)
[12:48] * jakeri (~gfgf@a88-113-154-120.elisa-laajakaista.fi) has joined #raspberrypi
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[12:49] * hyperair (~hyperair@ubuntu/member/hyperair) Quit (Ping timeout: 264 seconds)
[12:49] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) has joined #raspberrypi
[12:51] * m8 (~mor@unaffiliated/m8) Quit (Ping timeout: 252 seconds)
[12:54] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[12:55] * sjaak_trekhaak (~sjaak@52495090.cm-4-2b.dynamic.ziggo.nl) Quit (Read error: Connection reset by peer)
[12:55] * dc5ala (~dc5ala@stgt-4d03aab3.pool.mediaWays.net) Quit (Quit: Ex-Chat)
[12:55] * chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) Quit (Remote host closed the connection)
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[13:00] * KindOne (KindOne@colchester-lug/silly-fool/donut) Quit (Ping timeout: 252 seconds)
[13:01] * mike_t (~mike@rv-cl-88-200-217-119.pool.tolcom.ru) has joined #raspberrypi
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[13:08] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[13:14] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[13:15] * ebswift (~ebswift@ppp118-208-131-150.lns20.bne1.internode.on.net) Quit (Ping timeout: 246 seconds)
[13:16] * nxtec (~tth@cpc1-lanc6-2-0-cust124.3-3.cable.virginmedia.com) Quit (Quit: Lost terminal)
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[13:20] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[13:27] * onder` (~onder@ Quit (Quit: leaving)
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[13:30] * sjaak_trekhaak (~sjaak@52495090.cm-4-2b.dynamic.ziggo.nl) Quit (Ping timeout: 245 seconds)
[13:30] * mrhanky (mrhanky@unterschicht.tv) has joined #raspberrypi
[13:30] <mrhanky> hey there
[13:30] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[13:30] <gordonDrogon> good aftermorning.
[13:34] * Zottelchen (~Zottelche@dslb-188-106-003-239.pools.arcor-ip.net) has joined #raspberrypi
[13:36] <mrhanky> i hooked up my pi to my cec-enabled tv. but the pi turns the tv on every 5mins
[13:37] * xCP23x (~xCP23x@ Quit (Ping timeout: 256 seconds)
[13:37] <mrhanky> i read about config.txt and though the setting "hdmi_ignore_cec_init=1" should help, it wont
[13:39] * herbert__ (~root@ has joined #raspberrypi
[13:41] <herbert__> has anyone here experienced lag when using framebuffer to display video on the raspi? all videos with over ~500x300 have lag, most of it is video delay, the audio works normally.
[13:41] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[13:45] * slug (~Nuno@209-6-193-216.c3-0.smr-ubr2.sbo-smr.ma.cable.rcn.com) has joined #raspberrypi
[13:46] * herbert__ (~root@ Quit (Ping timeout: 248 seconds)
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[13:55] <BlackBishop> Hmm .. doing an echo "/usr/lib/omxplayer/" >> /etc/ld.so.conf.d/omxplayer.conf && ldconfig seems to fix the ldd output on omxplayer.bin that doesn't find libraries .
[13:55] * dan2k3k4 (~dan2k3k4@unaffiliated/dan2k3k4) Quit (Ping timeout: 245 seconds)
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[14:02] * steve_rox2 (~steve@82-69-127-162.dsl.in-addr.zen.co.uk) has joined #raspberrypi
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[14:03] * steve_rox2 is now known as steve_rox
[14:03] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Ping timeout: 248 seconds)
[14:05] * Datalink|Elsewhe is now known as Datalink
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[14:06] * sjaak_trekhaak (~sjaak@541E80BC.cm-5-7c.dynamic.ziggo.nl) has joined #raspberrypi
[14:08] * calios (~calios@unaffiliated/calios) Quit (Ping timeout: 256 seconds)
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[14:15] * timmmaaaayyy (~timmmaaaa@cpe-68-175-79-100.nyc.res.rr.com) Quit (Ping timeout: 248 seconds)
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[14:17] * sirclockalot (~sirclocka@unaffiliated/sirclockalot) Quit (Client Quit)
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[14:19] * andrei_chiffa (~andrei_ch@AStrasbourg-551-1-56-31.w83-194.abo.wanadoo.fr) Quit (Ping timeout: 276 seconds)
[14:20] <ShorTie> got my board built, now i need a scope for a smoke test, lol.
[14:20] * MidnighToker (~Toker@unaffiliated/midnightoker) Quit (Remote host closed the connection)
[14:23] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[14:38] * Red_M is now known as Red_M[AWAY]
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[14:51] * micges (~micges@dgx27.neoplus.adsl.tpnet.pl) Quit (Remote host closed the connection)
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[14:53] * BlackBishop (~dexter@5-12-11-31.residential.rdsnet.ro) Quit (Read error: Operation timed out)
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[16:00] * nils_2 (~nils_2@unaffiliated/nils-2/x-2480262) Quit (Read error: Operation timed out)
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[16:04] <AsktonH> Hi guys, I'm getting a 'couldn't initiate opengl subsystem' message when I try to run openarena on my pi running Raspbian. Any pointers?
[16:05] * AeroNotix (~xeno@abor102.neoplus.adsl.tpnet.pl) Quit (Client Quit)
[16:05] * KiltedPi (KiltedPi@host-78-151-120-135.as13285.net) has joined #raspberrypi
[16:06] * AeroNotix (~xeno@abor102.neoplus.adsl.tpnet.pl) has joined #raspberrypi
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[16:11] * gryphraff apologetically offers AsktonH a medium-sized, slobbery dog.
[16:11] <AsktonH> hahahaha
[16:11] <AsktonH> pointer... good one :)
[16:12] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Ping timeout: 256 seconds)
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[16:13] * d3nd3 (~dende@cpc10-croy17-2-0-cust245.croy.cable.virginmedia.com) has joined #raspberrypi
[16:14] <gryphraff> The only time I remember seeing messages like that is when there is an issue with graphics card drivers, or simply 'it won't work here' conditions...
[16:16] * nils_2 (~nils_2@unaffiliated/nils-2/x-2480262) has joined #raspberrypi
[16:16] <ring0> AsktonH, afaik you need the version from the pi store, not the one from the usual repos
[16:18] <ring0> AsktonH, http://store.raspberrypi.com/projects/openarena?adult
[16:18] * troulouliou_dev (~troulouli@unaffiliated/troulouliou-dev/x-4757952) has joined #raspberrypi
[16:18] * mrhanky (mrhanky@unterschicht.tv) Quit (K-Lined)
[16:18] * teepee (~teepee@p50847F05.dip0.t-ipconnect.de) Quit (Ping timeout: 252 seconds)
[16:19] * teepee (~teepee@p50845061.dip0.t-ipconnect.de) has joined #raspberrypi
[16:19] <AsktonH> ring0 thank you kind internet person
[16:20] <gryphraff> Shows you what I know, I wasn't even aware there was a pi store. I need to get out more.
[16:21] <gryphraff> Lunar Panda has a picture that's vaguely disturbing.
[16:21] <ring0> AsktonH, you're welcome. it's free to download, too. let me know, if it works out for you :)
[16:23] * mgottschlag (~quassel@reactos/tester/phoenix64) Quit (Quit: http://quassel-irc.org - Chat comfortably. Anywhere.)
[16:23] <AsktonH> Anyone feel like trying to reproduce a kernel oops that I'm experiencing? I'm not sure if it's my Pi only or a general problem.
[16:25] <AsktonH> I can force connected USB devices into a low-power mode. This is great when you're running off of solar power and the battery is getting low. It works very well.
[16:26] <AsktonH> Only problem is, after the 10th time or so of cycling through this mode, the kernel oopses and you have to restart the Pi..
[16:27] * Ricksl (~ricksl@c-68-39-90-86.hsd1.nj.comcast.net) has joined #raspberrypi
[16:28] <AsktonH> To switch the devices to low power, you just do (as root) "echo 0x0 > /sys/devices/platform/bcm2708_usb/buspower". To switch power back on : "echo 0x1 > /sys/devices/platform/bcm2708_usb/buspower"
[16:29] <AsktonH> (although you're going to lose USB keyboard/mouse and LAN input. So.. stick those in a script..
[16:29] <gryphraff> Does it happen with all devices, or just with particular ones?
[16:29] <AsktonH> gryphraff, even if none are connected.
[16:29] <AsktonH> It's amazing though, power demand -halves-. From 0.43 Amps to just 0.2 amps
[16:29] <SpeedEvil> which raises the question of the model a
[16:30] <SpeedEvil> interesotn
[16:31] * Encrypt (~Chuck-nor@AMontsouris-553-1-30-247.w92-151.abo.wanadoo.fr) has joined #raspberrypi
[16:32] <AsktonH> Here's a little script that cycles through it every 30 seconds. I would really appreciate it if someone could try to see if it happens on their Pis as well : http://pastebin.com/h0vVtFyh
[16:33] <gryphraff> Give me a few mintes, let me see if my minecraft pi is free.
[16:33] * SpeedEvil sighs. and wishes he had a scratch pi.
[16:33] <gordonDrogon> does it have to be a Pi with something plugged into the usb?
[16:33] <AsktonH> SpeedEvil, yea, in a way, it's an easy way to turn a B into an A with the command line. *(PS. if you have hard-wired 5v consumers connected to the bus it won't make a difference, for example USB desk light etc.)
[16:33] <AsktonH> gordonDrogon, nope. All B pis have something in USB anyway - the ethernet port is actually a USB ethernet adapter
[16:33] <SpeedEvil> AsktonH: I mean, does it crash without a connected hub
[16:34] <AsktonH> SpeedEvil, yep :( for me anyway
[16:34] <SpeedEvil> like in the b
[16:34] <AsktonH> SpeedEvil, but only after 10 - 30 tries
[16:34] <SpeedEvil> the a has no hub
[16:34] <AsktonH> SpeedEvil, oh, yea.. yes :)
[16:35] * gordonDrogon runs it.
[16:35] <Encrypt> AsktonH, What is the aim of the script?
[16:35] <gordonDrogon> model B rev 2.
[16:35] <gordonDrogon> Ethernet blipped.
[16:36] <AsktonH> Encrypt, it's to see if it crashes the pi after a few cycles of switching the USB bus power on and off. I need it because I'm running remote solar powered stations, and it's useful to switch the USB off when not needed, because it literally means I can run my Pi for 40 hours instead of 20 on the same battery
[16:36] <SpeedEvil> AsktonH: does it actually shut off vBus , or does it just turn odd the hub, and command stuff to suspend?
[16:36] <AsktonH> gordonDrogon, as expected, since the ethernet is actually USB.. it'll come back on after 30 secs
[16:36] <Encrypt> Ok ;à
[16:36] <Encrypt> ;)*
[16:36] <gordonDrogon> sure the pi is actually crashing and not just the ethernet going away?
[16:37] <AsktonH> SpeedEvil, well, not really. But most devices are clever enough to switch themselves off when that command is issued
[16:37] * esing (~esing@unaffiliated/esing) Quit (Remote host closed the connection)
[16:37] <AsktonH> gordonDrogon, yes.. you'll see a kernel oops after a few of these cycles.
[16:37] * sirclockalot (~sirclocka@unaffiliated/sirclockalot) Quit (Quit: sirclockalot)
[16:37] <AsktonH> gordonDrogon, but not if you're in X.. You'll only see it on the straight console
[16:37] <gordonDrogon> I'm not going to see anything as I can't login and I don't have a console on it.
[16:37] <Encrypt> Did you consider underclocking?
[16:37] <SpeedEvil> AsktonH: yeah, just clarifying
[16:38] <gordonDrogon> I'll try it on a Pi with a monitor connected then...
[16:38] * esing (~esing@unaffiliated/esing) has joined #raspberrypi
[16:38] <gryphraff> I have your script on my pi, let me get a keyboard and I'll run it
[16:38] <AsktonH> Encrypt, yeah :) The thing is, for example, the Pi only consumes about 0.3- 0.4 amps normally. But if you have a 3G dongle connected that can easily go up an additional 0.5 A.. witch is a lot..
[16:39] <AsktonH> gordonDrogon, gryphraff thanks guys :)
[16:39] * Mikelevel (~MoVeWoRk@unaffiliated/mikelevel) Quit (Ping timeout: 256 seconds)
[16:39] <Encrypt> Right... :)
[16:39] <AsktonH> Encrypt, so it's useful to switch it off when it's not needed. (say, connect twice a day, send data, then switch the bus off to conserve power)
[16:40] <gordonDrogon> got usb disconnect messages... to be expetect I guess.
[16:40] <AsktonH> gryphraff, you're welcome to shorten the interval to 10 seconds or so... doesn't really matter.. You can also connect an optical mouse to see it's LED switch on and off as the script runs
[16:40] * DexterLB (~dex@ Quit (Read error: Connection reset by peer)
[16:41] <gryphraff> That script sent my pi into lockupland
[16:41] <gordonDrogon> and now reconnects & it's seen the net,keyboard & scope...
[16:41] <AsktonH> gryphraff, ok.... so you got the oops too?
[16:41] <AsktonH> dang :(
[16:41] <gordonDrogon> however ethernet has not come back & it's not pingable. no oops yet.
[16:41] <SpeedEvil> AsktonH: neat discovery
[16:42] <AsktonH> SpeedEvil, I can't take credit for it :) found it on the net somewhere :)
[16:42] <gryphraff> I get nothing. The device simply locked up. I'm going to go about this a different way, stand by.
[16:42] <SpeedEvil> AsktonH: of course even neater would be proper suspend - but...
[16:42] <gordonDrogon> ah, the eth0 device went away and I'm not running network manager, etc.
[16:42] <AsktonH> gryphraff, thanks...
[16:42] <Encrypt> AsktonH, By the way, I imagine the audio, video... chips consume power even for a server use of the Pi?
[16:43] * SpeedEvil notes that he is unlikely to reveal the source of a complete data sheet.
[16:43] <gordonDrogon> keyboard comes back though.
[16:43] <AsktonH> Encrypt, I imagine they do, but I don't think there's much we can do about it, as it's all integrated on the broadcom chip.
[16:43] <SpeedEvil> there is no separate audio and video chip.
[16:43] <SpeedEvil> it may well be disable able
[16:44] <AsktonH> gordonDrogon, It'll have oopsed when the keyboard doesn't come back on after the usual interval - at least that's what happens to me..
[16:44] <SpeedEvil> the cores, that is
[16:44] <Encrypt> I was looking for a way to reduce the consumption of my Pi, running different things 24 hours a day...
[16:44] <Encrypt> But I didn't do much for now... :(
[16:44] <gordonDrogon> hey this is neat. if I can switch off USB/Ethernet then I can turn it into a model A.
[16:44] <Encrypt> Even underclocking...
[16:44] <gordonDrogon> and run it ib my garden off batteries.
[16:45] <gordonDrogon> it hasn't oopsed yet btw.
[16:45] <gordonDrogon> how much powere was it saving?
[16:45] <AsktonH> gordonDrogon, exactly. I have my pi running through a multimeter.. power consumption literally goes to 0.2 amps. That's only 1 Watt!!
[16:45] <AsktonH> (from 2 Watts)
[16:45] <gordonDrogon> neat.
[16:45] <gryphraff> Running now.
[16:46] * DexterLB (~dex@ has joined #raspberrypi
[16:46] <gordonDrogon> my Pi is running the current raspbian via apt-get update/upgrade as of 2 days ago.
[16:46] <Encrypt> By the way, the RPi Saver should come this summer \o/
[16:46] <gordonDrogon> the one I'm testing it on is also a red pi, but that shouldn't make any difference...
[16:46] <gordonDrogon> rpi saver?
[16:46] * Topcat (5c1dda34@gateway/web/freenode/ip. has joined #raspberrypi
[16:46] <gryphraff> Unable to handle kernel null pointer reference.
[16:47] <gryphraff> After about 5 cycles
[16:47] <Encrypt> A device that will avoid SD Card corruption in case of power cuts
[16:47] <AsktonH> thanks for your confirmation gryphraff
[16:47] <AsktonH> gryphraff, I owe you one internet
[16:47] <AsktonH> :)
[16:47] <Encrypt> Switching it off securely
[16:47] <gryphraff> "due to oops" :D
[16:47] <AsktonH> Thanks gordonDrogon as well.
[16:47] <Topcat> is there a problem with the arch image dhcp starting fresh install?
[16:47] <gryphraff> Almost as much fun as a PDP-11 running UNIX V saying "Kernel Panic. Death."
[16:48] <linuxstb> Encrypt: Have you seen this? http://freneticrapport.blogspot.com/2013/02/more-raspberry-pi-power-saving-part-3.html (and I guess parts 1 and 2)
[16:48] <AsktonH> gryphraff, what I might just do then force it to reboot when I want power back rather than just switch it in the script.. not very neat, but it should work.. :)
[16:48] <AsktonH> gryphraff, hahahah
[16:48] <gordonDrogon> still going.
[16:48] <gordonDrogon> the ethernet LEDs don't go off when it goes into low-power mode, but they flicker when it comes back to normal.
[16:48] <AsktonH> gordonDrogon, maybe the red ones are immune to this problem
[16:49] <gordonDrogon> AsktonH, should be the same components, etc.
[16:49] <Encrypt> Comes with "Restart" and "On / Off" buttons to restart / shut it down securely in case you loose SSH connection for people running it as a server through SSH like me :p
[16:49] <gryphraff> Well, I'm not sure how hard it would be to implement, but the embedded devices I use have a watchdog timer that resets the system in case of lockup.
[16:50] <Encrypt> linuxstb, Thanks :)
[16:50] <AsktonH> gryphraff, hmmm. I've been toying a bit with the broadcom watchdog.. I'll see if I can get it to react to this. Thanks again mate..
[16:50] <Encrypt> linuxstb, I bookmarked it ;)
[16:50] <gryphraff> Interestingly enough, the entire USB system appears to reset when the "ON" command is issued.
[16:50] <gordonDrogon> I wasn't going to put a Pi in my garedn - was going to use an arduino, but this might make the difference. Everything will be powered via battery/solar..
[16:50] <gordonDrogon> let me up the rate to 10 seconds and not 30..
[16:51] <Encrypt> By the way, be careful about the numerous log lines it can do...
[16:51] <Encrypt> Best way to kill an SD Card
[16:52] * taza (~zap@unaffiliated/taza) has joined #raspberrypi
[16:52] <AsktonH> gordonDrogon, yeah, solar is getting so cheap now.. I bought a couple of 10W panels the other day for 11 USD
[16:52] <AsktonH> *each
[16:52] <gordonDrogon> AsktonH, I'm looking at a 130 watt panel and a pair of 72Ah leisure batterys :)
[16:53] <AsktonH> gordonDrogon, well, that should get you through a nuclear winter
[16:53] <gordonDrogon> right. up & down at 10 seconds intervals now.
[16:53] <gordonDrogon> AsktonH, I live in a rainy place.
[16:53] <gordonDrogon> I saw some 1000Ah batteries and drooled over them recently.... couldn't lift them.
[16:53] <AsktonH> geez
[16:54] <AsktonH> gordonDrogon, hasn't crashed yet?
[16:55] <gryphraff> I had the ethernet and a USB keyboard/mouse combo connected to my device during crash
[16:56] <gryphraff> I wonder: The ethernet is the strange lovechild of a USB connection and a RJ jack. Is it possible this is causing issues?
[16:57] <AsktonH> gryphraff, mmmm I'm going to try it on mine with ethernet disconnected.. maybe it'll make a difference. I might disappear though as I'm on the pi now
[16:57] <gryphraff> Nooooooooooooooooo don't leave us!
[16:58] <gryphraff> A stacktrace post suggested http://lwn.net/Kernel/LDD3/ - chapter 4, page 94
[16:58] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) has joined #raspberrypi
[16:59] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Remote host closed the connection)
[17:00] * AsktonH (~pi@196-215-94-65.dynamic.isadsl.co.za) Quit (Read error: Connection reset by peer)
[17:00] * robscomputer (~robscompu@nat/yahoo/x-tewczcutaddyzrvu) has joined #raspberrypi
[17:01] * AsktonH (~pi@196-215-94-65.dynamic.isadsl.co.za) has joined #raspberrypi
[17:01] <AsktonH> gryphraff, well.. it still oopses, even with no ethernet connected and no usb devices connected..
[17:02] <AsktonH> gryphraff, it even oopses if I do an ifdown eth0 before turning off the usb each time
[17:03] <AsktonH> gordonDrogon, your still going?
[17:04] <gordonDrogon> AsktonH, yes!
[17:05] * cccyRegeane_Away is now known as cccyRegeaneWolfe
[17:05] <SpeedEvil> It is also semiplausible it could be power supply related.
[17:05] <SpeedEvil> AsktonH: you're confident your PSU is good?
[17:05] <gryphraff> I'm using a pretty hefty 2A supply
[17:05] * pecorade (~pecorade@host157-29-dynamic.116-80-r.retail.telecomitalia.it) has joined #raspberrypi
[17:05] <AsktonH> SpeedEvil, yep,, running it off a good 2A suppy
[17:05] <gordonDrogon> mine is the 5v PSU from skpang..
[17:06] <gryphraff> I also have a bunch of extra things installed on mine, mail, sendxmpp, java, nmon, etc...
[17:06] <gordonDrogon> says it's 1Amp.
[17:06] <gordonDrogon> I cound run up X on mine - see if it makes a difference - got a 10 second window :)
[17:07] * sirclockalot (~sirclocka@unaffiliated/sirclockalot) has joined #raspberrypi
[17:08] <gordonDrogon> started X + xfce4.
[17:09] <gordonDrogon> need to find a mouse
[17:10] <gordonDrogon> fount mouse, plugged in, works fine.
[17:10] <Darkwell> gordonDrogon, 72ah at what voltage ?
[17:10] <gordonDrogon> I can see mouse LED go off & on :)
[17:10] <gordonDrogon> Darkwell, 12v
[17:10] <Darkwell> ok
[17:10] * Jevermeister (~Jevermeis@unaffiliated/jever) Quit (Ping timeout: 260 seconds)
[17:11] <gordonDrogon> Darkwell, http://www.molevalleyfarmers.com/mvf/store/products/numax-lv22mf-leisure-battery-12v-75ah;jsessionid=498EB6B5C170299816F6D6E1C4D080CC
[17:11] <AsktonH> gordonDrogon, I guess the red ones have something that's slight different :) Well I hope it helps you a bit in your solar project. Good luck
[17:11] <Darkwell> i think you can get 100Ah or 120 leisure for pretty cheap price
[17:11] <AsktonH> Well.. you guys have been very helpful. Thank you very much gordonDrogon, gryphraff and SpeedEvil .. I gotta run cheers
[17:11] * ReggieUK (ReggieUK@ has joined #raspberrypi
[17:11] * ChanServ sets mode +o ReggieUK
[17:11] <gordonDrogon> AsktonH, I'll switch to a normal one :)
[17:11] <SpeedEvil> AsktonH: :)
[17:11] * AsktonH (~pi@196-215-94-65.dynamic.isadsl.co.za) Quit (Quit: Leaving)
[17:12] <SpeedEvil> Do remember everyone using 12V batteries - they die if you discharge them past 10.6V, and may be permenantly damaged
[17:12] <Darkwell> 12V that actually is 10 v ?
[17:12] <SpeedEvil> ?
[17:13] <Darkwell> didnt get what yous aid maybe my english is too bad haha
[17:13] * sirclockalot (~sirclocka@unaffiliated/sirclockalot) Quit (Quit: sirclockalot)
[17:14] <SpeedEvil> If you discharge a 12V lead acid battery so its voltage falls below 10.6V it may be damaged.
[17:14] <Darkwell> just make sure to get a charge regulator if you combine it with solarcells
[17:14] <Darkwell> och yes
[17:14] <Darkwell> och yes
[17:15] <Darkwell> you can add shorting fuse
[17:15] <gordonDrogon> ok, so this is now running on a Rev 1, model B. on/off going ok, but this time no kernel messages about usb devices disconnecting, etc. however I see the LED on the mouse going of/on, etc.
[17:15] <gordonDrogon> this one also keeps the network adapter going.
[17:15] <gordonDrogon> while the red pi didn't. they are identical setups.
[17:16] <Darkwell> hmm
[17:16] * Imppu (~boss@dsl-mlibrasgw2-50ddaa-150.dhcp.inet.fi) has joined #raspberrypi
[17:16] <gordonDrogon> SpeedEvil, this is a leisure battery - deep discharge safe.
[17:16] <SpeedEvil> gordonDrogon: Err, no
[17:16] <Darkwell> will the pi allow you to plug a 6v battery to it or do i have to add a diode to pull down the voltage ?
[17:16] <SpeedEvil> gordonDrogon: deep discharge is to 10.6. That is 0% charge.
[17:16] <SpeedEvil> gordonDrogon: Discharging it below that risks the plates warping and damaging it.
[17:17] <gordonDrogon> if you say so.
[17:17] <SpeedEvil> Darkwell: you need a regulated 5V.
[17:17] * xCP23x (~xCP23x@ has joined #raspberrypi
[17:18] <Darkwell> then a diode would do
[17:19] * Jevermeister (~Jevermeis@unaffiliated/jever) has joined #raspberrypi
[17:19] <SpeedEvil> Darkwell: No, it won't.
[17:19] <Darkwell> unfortunately 1N4248 is a bit weak doesn only allow you yo do 150mA
[17:20] <Darkwell> well
[17:20] <Darkwell> yes
[17:20] <Darkwell> it will cut off 1V from the battery
[17:20] <SpeedEvil> Darkwell: A diode does not drop 0.6V. Its drop varies with current. A '6v' battery will vary from about 7.5V fresh to maybe 4.6V flat
[17:20] <Darkwell> ok
[17:21] <Darkwell> i meant 1N4148
[17:21] <Darkwell> so what would you suggest to reculate it properly ?
[17:22] <Darkwell> att some buffering capacitors to etc ?
[17:23] * AhmedElGamil (~quassel@fedora/AhmedElGamil) has joined #raspberrypi
[17:24] * sirclockalot (~sirclocka@unaffiliated/sirclockalot) has joined #raspberrypi
[17:24] <Darkwell> maybe a L7805 and 2 capacitors ?
[17:25] * donkeybox (~david@pool-71-162-119-51.bstnma.fios.verizon.net) has joined #raspberrypi
[17:25] <Topcat> Right, I'm slightly sure systemctl is trying to start dhcpcd before the network port is ready, any suggestions? Fresh arch img
[17:25] <gryphraff> A 7805 has too high of a differential voltage to be reliable in this situation
[17:25] <gryphraff> There are three-terminal regulators called battery regulators that have a very low input-to-output voltage requirement.
[17:25] <gryphraff> Low dropout, or something, let me see if I can find one again
[17:25] <gordonDrogon> http://uk.farnell.com/xp-power/sr10s05/switching-regulator-5v-1a-o-p/dp/1861095?Ntt=sr10s05
[17:26] <Darkwell> i see
[17:26] <gordonDrogon> might not work off 6v though.
[17:26] <Darkwell> the voltages i want to have regulator(s) for is 6 volt or 12 volt sources
[17:26] <gryphraff> That's a little dc-dc converter, it would work fine for 12V batteries but drop out at 6
[17:26] <Darkwell> 6 volt for wearable batterypacks
[17:27] <Darkwell> 12 volt for the solar powered 12 volt leisure pack
[17:27] <gryphraff> An LM2940 may do what you want
[17:27] * oldtopman (~oldtopman@unaffiliated/oldtopman) has joined #raspberrypi
[17:27] <gryphraff> it has a I-to-O voltage of about 0.5V
[17:27] <gordonDrogon> my Pi is still doing the usb off/on thing.
[17:27] <gordonDrogon> seems to "just work" for me.
[17:28] <gryphraff> Wow. You got a good one.
[17:28] <gordonDrogon> 2 good ones.
[17:28] <gryphraff> LT1086 is a higher current low dropout regulator
[17:28] <Darkwell> ok
[17:28] <gryphraff> With higher input voltages, remember you're going to be dissapating more power in the regulator, which means more heat sink and more heat
[17:29] <Darkwell> lm2940 FOR 6VOLT ?
[17:29] <gordonDrogon> so the 2 Rev 2's reported usb disconnect messages and didn't bring the Ethernet back - the Rev 1 doesn't report the disconnect messages and does bring the Ethernet back online.
[17:30] <gordonDrogon> might have to cut open a USB cable and do some measurements myself...
[17:30] <gryphraff> The 2940 should work with a 6V input, provide 5V out
[17:31] <gordonDrogon> A-Ha...
[17:31] <gryphraff> Find something interesting?
[17:31] <gordonDrogon> AsktonH isn't here?
[17:32] <gryphraff> think he said he had to run
[17:32] <gordonDrogon> no - not found anything intersting, but I have remembered one difference between the Rev 1 & Rev 2 boards.
[17:33] <gryphraff> Ah ha. What's the difference?
[17:33] <gordonDrogon> The Rev 1 connects the 3.3v output from the USB/Ethernet chip to the Pi's 3.3v. This was supposed to be connected to a decoupling capacitor as that chip generates its own 3.3v supply internally. So Rev 1 Pi's will still feed power into the chip inadvertantly, so stopping the disconnects I am seeing on the Rev 2.
[17:33] * ryushe (ryushe@2600:3c00::31:face) has joined #raspberrypi
[17:33] <gordonDrogon> Rev 2 fixed that small oversight. it's what caused that chip to get hot on the Rev 1's - the usb chip was supplying the 3.3v on some Pi's!
[17:34] <SpeedEvil> gordonDrogon: If you're not stopping the discharge of a lead acid battery at 10.6V or so for a lead acid cell - you risk damage - this is not what 'deep cycle' means - that's discharging to 0% remaining charge - this is overdischarge, and can permenantly damage the battery.
[17:34] <SpeedEvil> Take a look at any lead acid datasheet
[17:34] <gordonDrogon> SpeedEvil, I also know that lesuire batterys have thick plates - highly unlikely to warp them. I also know what Devon farmers do to them.
[17:35] <SpeedEvil> Quite - however do you want your battery with the nominal capacity, or a third of it?
[17:36] <gryphraff> Sounds like a good project - a DVM that reads the battery and reports to the Pi, so the Pi can turn itself off when battery voltage is too low!
[17:37] <gordonDrogon> hard to turn the Pi off completely though.
[17:37] <SpeedEvil> It's generally better not to rely on the Pi for that.
[17:37] <gryphraff> Awwww c'mon. It'll be fun!
[17:37] <Encrypt> gordonDrogon, Nope ;)
[17:37] <SpeedEvil> As if it crashes, you're screwed. An opamp/comparator/... and a relay/mosfet
[17:37] <gryphraff> All right fine, if you want to do it old-school...
[17:37] <gordonDrogon> Encrypt, you can't turn the Pi off to consume 0 current without external comonents.
[17:38] <Encrypt> SpeedEvil, That's almost what I've done with the RPi Saver!
[17:38] <Encrypt> gordonDrogon, Ya, I mean with mosfets, etc...
[17:38] <gordonDrogon> although having an arduino control the power is a viable option..
[17:38] <gordonDrogon> costs as much as the Pi though :)
[17:39] <Encrypt> Better idea:
[17:39] <SpeedEvil> A latching relay is a nice thing.
[17:39] <Encrypt> Using a mosfet, the 5V output of the Pi and a voltage dividing bridge
[17:39] <SpeedEvil> They're quite cheap too
[17:40] <Encrypt> On #electronics, people told me to get rid of relays
[17:40] <gordonDrogon> I've experimented with a 1-bit ADC on the Pi before. Worked very well for some additional code.
[17:40] * Ricksl (~ricksl@c-68-39-90-86.hsd1.nj.comcast.net) Quit (Ping timeout: 276 seconds)
[17:40] <SpeedEvil> They're probably sane.
[17:40] <SpeedEvil> People on ##electronics are generally very smart.
[17:40] <Encrypt> Yep :)
[17:40] <gordonDrogon> relays generally won't get hot under heavy load when mosfests might, but relays are going to also waste 30+mA ...
[17:41] <SpeedEvil> ^latching
[17:41] <gordonDrogon> yes.
[17:41] * ant_thomas (~ant_thoma@97e02945.skybroadband.com) Quit ()
[17:42] * ricksl (~ricksl@c-68-39-90-86.hsd1.nj.comcast.net) has joined #raspberrypi
[17:42] <gordonDrogon> I looked at a system where you pushed a button - the relay went on, powered the Pi, Pi booted, then activated gpio output in parallel with switch...
[17:42] <SpeedEvil> http://uk.rs-online.com/web/p/latching-relays/7455466/
[17:42] <gordonDrogon> pi halts, gpio goes high impedance, pulled down, relay unlatches.
[17:42] <SpeedEvil> £1.20
[17:43] <gordonDrogon> would need to hack the kernel halt code to do the final pulse to unlatch the relay - not impossible though.
[17:44] <SpeedEvil> Or just do it in scripts
[17:44] <SpeedEvil> After everythings unmounted.
[17:44] <SpeedEvil> No especial reason the kernel has to know what's coming.
[17:44] <gordonDrogon> I guess not.
[17:45] <gordonDrogon> that's an intersting relay. wonder what 'photoMos' means.
[17:45] <SpeedEvil> It is a bilateral CMOS switch optocoupler
[17:46] <SpeedEvil> LED -> solar cell stack -> two MOSFETs
[17:46] * xCP23x (~xCP23x@ Quit (Quit: Leaving)
[17:47] <gordonDrogon> I wonder if I was looking at the wrong page - that relay had a coil in it - or maybe that's an equivalent?
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[17:48] * Firehopper (~Firehoppe@pool-71-185-123-108.phlapa.east.verizon.net) Quit (Quit: Leaving)
[17:50] * sraue (~stephan@xbmc/staff/sraue) Quit (Remote host closed the connection)
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[17:51] * atouk (~atouk@ool-457e23d5.dyn.optonline.net) Quit (Ping timeout: 246 seconds)
[17:51] <nerdboy> moin
[17:52] * sraue (~stephan@xbmc/staff/sraue) has joined #raspberrypi
[17:53] * nerdboy 's efl image has a segfaulting e-wm :/
[17:54] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[17:55] <gryphraff> I need more space on my pi's main drive. If I just dd the existing image to a larger SD card, and use the expand fs option of raspi-config, will it work or will I have offended the gods?
[17:55] * armin (~armin@neon.darkbyte.org) Quit (Quit: leaving)
[17:55] * grandie (~Grandad@p57ACF863.dip0.t-ipconnect.de) has joined #raspberrypi
[17:57] <nerdboy> not sure if that option includes resizing the partition first
[17:57] <nerdboy> doing it manually with gparted works fine
[17:58] <gryphraff> Yes, that can be done. I was hoping to take the easy way out.
[17:59] <nerdboy> haven't booted anything but my homegrown poky image(s) for a few weeks...
[17:59] * cccyRegeaneWolfe is now known as cccyRegeane_Away
[17:59] <nerdboy> the build image sizes itself for the size of the rootfs so i manually expand it using gparted
[18:00] <gryphraff> I'll head over to micro center today and pick up a new card, see what happens.
[18:01] * grandie (~Grandad@p57ACF863.dip0.t-ipconnect.de) Quit (Remote host closed the connection)
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[18:10] * Shirakawasuna (~Shirakawa@184-77-202-94.war.clearwire-wmx.net) has joined #raspberrypi
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[18:14] <Encrypt> gryphraff, By the way, your SD Card has gone full?
[18:14] <gryphraff> Well, I'm using it as a minecraft server among other things, and I have a number of worlds on it.
[18:15] <Encrypt> Ok
[18:15] <gryphraff> It's not full from logs or system stuff.
[18:15] <Encrypt> Because my SD Card went full a few days ago
[18:15] * bigbee (~BigB@p57ACF863.dip0.t-ipconnect.de) Quit (Read error: Connection reset by peer)
[18:15] * hydroxygen (~duckinaro@unaffiliated/zor/x-4290728) has joined #raspberrypi
[18:15] <gryphraff> Is /var/logs full?
[18:15] <Encrypt> I notices that all the packages were kept after apt-get update & apt-get upgrade
[18:15] <gryphraff> yeah
[18:15] <Encrypt> I noticed*
[18:15] <gryphraff> use clean and autoremove
[18:15] <Encrypt> So, running sudo apt-get clean solved the problem \o/
[18:16] <gryphraff> :)
[18:16] <Encrypt> Back to 70% used space instead of 97%
[18:16] <gryphraff> I have some scripts set up to run unused log and cleanups every wednesday
[18:16] <gryphraff> it helps
[18:17] * turtlethumper (~turtlethu@c-98-198-128-151.hsd1.tx.comcast.net) has joined #raspberrypi
[18:17] <Encrypt> gryphraff, "7,3M /var/log"
[18:17] <Encrypt> Well, that's fine...
[18:17] <gryphraff> Yeah, nothing there.
[18:18] <Encrypt> But :"112M /var/cache"
[18:18] <gryphraff> mmmm, not sure what's stored there.
[18:18] <Encrypt> And I sudo apt-get cleaned a week ago ; I upgraded once...
[18:18] * hyperair (~hyperair@ubuntu/member/hyperair) Quit (Ping timeout: 256 seconds)
[18:19] <gryphraff> Let me take a look at what I've got atm
[18:19] <Encrypt> gryphraff, "19M /var/cache"
[18:19] <Encrypt> apt-get clean done :p
[18:20] <gryphraff> I had about 100M of stuff in mine
[18:21] <Encrypt> Got to go...
[18:21] <Encrypt> Bye! :)
[18:21] * Encrypt (~Chuck-nor@AMontsouris-553-1-30-247.w92-151.abo.wanadoo.fr) Quit (Quit: Quitte)
[18:21] <gryphraff> later
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[18:33] * gryphraff (~harmlessg@cpe-65-24-248-145.insight.res.rr.com) Quit (Quit: gryphraff)
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[18:38] * chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) has joined #raspberrypi
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[18:42] <alexszilagyi> Hi everyone
[18:43] <alexszilagyi> Is there anybody who played with Django and Raspberry pi before?
[18:43] * DexterLB (~dex@ Quit (Read error: Connection reset by peer)
[18:44] <alexszilagyi> I'd like to ask about 'No access to /dev/mem. Try runing as root' error
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[18:50] * heathkid|2 is now known as heathkid
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[19:03] * robscomputer (~robscompu@nat/yahoo/x-oecocvdsuigsbtjd) has joined #raspberrypi
[19:05] * alexisabril (~alexisabr@cpe-76-183-89-131.tx.res.rr.com) has joined #raspberrypi
[19:06] <alexisabril> Hey everyone, new user here. Is it possible to run an sd card setup for a pi via a VM(on a mac atm)?
[19:07] <alexisabril> I realize that question isn't necessarily pi specific, that just happens to be my reason
[19:08] <maxinux> what do you mean?
[19:08] <maxinux> there are many ways i can interpret that
[19:08] <maxinux> all are 'yes'
[19:11] * tombrough (~tom@cpc4-newt3-0-0-cust54.newt.cable.virginmedia.com) has joined #raspberrypi
[19:12] <alexisabril> VMWare/Parallels usually require an image as opposed to just running the OS natively from the SD card
[19:12] <alexisabril> I'm basically looking for a way to run the OS on the SD card directly from a more powerful machine for debugging/configuring
[19:12] <alexisabril> and playing around with different flavors of the OS
[19:14] * robscomputer (~robscompu@nat/yahoo/x-oecocvdsuigsbtjd) Quit (Ping timeout: 264 seconds)
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[19:20] <SpeedEvil> very tricky
[19:21] <SpeedEvil> simply as more powerful binary compatible systems aren't common
[19:21] * cmasta (~cmasta@c-98-246-11-70.hsd1.or.comcast.net) has joined #raspberrypi
[19:21] <SpeedEvil> don't exist
[19:24] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[19:25] <maxinux> alexisabril: you will need qemu
[19:25] <maxinux> http://xecdesign.com/qemu-emulating-raspberry-pi-the-easy-way/
[19:25] * chod (~chod@toy-town.demon.co.uk) Quit (Quit: Lost terminal)
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[19:27] <alexisabril> maxinux: Awesome, much appreciated. I'll read into this!
[19:27] * mpmc (~mpmc@unaffiliated/mpmc) Quit (Ping timeout: 246 seconds)
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[19:28] <SpeedEvil> qemu is at best perhaps 5% of the native speed
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[19:32] * mapee (~mapee@host-87-242-29-237.prtelecom.hu) has joined #raspberrypi
[19:34] <Darkwell> hmm maybe a switching voltage regulator for the pi ?
[19:34] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
[19:35] <alexszilagyi> Did anyone added the RPi module to django ?
[19:36] * alexisabril (~alexisabr@cpe-76-183-89-131.tx.res.rr.com) Quit (Quit: alexisabril)
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[20:09] * mrcan (~mrcan@unaffiliated/mrcan) Quit (Ping timeout: 252 seconds)
[20:10] <ricksl> So here is a project for you, a big red button on a raspberry pi, and when I press it, it turns off my brothers mac in the other room.
[20:10] <ParkerR> ricksl, Haha
[20:11] <ozzzy> shouldn't be hard
[20:11] <ricksl> He is on skype at obscene hours into the morning, skype is hard to block with a firewall
[20:11] <ParkerR> Why are you trying to block it?
[20:12] <ricksl> I just want to block it after 10 when I want to sleep
[20:12] <ozzzy> kill him at the router
[20:12] * KiltedPi (KiltedPi@host-78-151-120-135.as13285.net) Quit (Read error: No route to host)
[20:12] <ricksl> but sometimes I like being on the internet at night
[20:12] * KiltedPi (KiltedPi@host-78-151-120-135.as13285.net) has joined #raspberrypi
[20:13] <ricksl> and he is just being rude to the household by skyping
[20:13] <ParkerR> Or better yet: talk to him
[20:13] <ParkerR> You'd be surprised how far a little negotation goes
[20:13] <ricksl> Ugh my parents see him as always in the right, he has that middle child privlage of my parents thinking I am always against him
[20:13] * dd00gg (~dd00gg@unaffiliated/dd00gg) Quit (Read error: Connection reset by peer)
[20:14] <ricksl> So if I try talking to him he goes to the parents then they chew me out, long story short it is better to quietly shut it off without him knowing whats going on
[20:14] <ricksl> I would do "killall Skype" recursively and he would just think the skype application was crashing
[20:15] <ozzzy> run a cron job that checks for skype every 2 minutes and kills if if it's active
[20:18] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) Quit (Read error: Connection reset by peer)
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[20:18] * cmasta (~cmasta@c-98-246-11-70.hsd1.or.comcast.net) Quit (Read error: Connection reset by peer)
[20:18] <SpeedEvil> Install a voice changer.
[20:19] <SpeedEvil> 25% of the time, for 5 seconds - make his voice squeaky
[20:21] <ParkerR> SpeedEvil, 100% of the time, 25% of the time
[20:21] * _BigWings_ (~Thunderbi@modemcable237.145-19-135.mc.videotron.ca) has joined #raspberrypi
[20:22] <ricksl> Not a terrible idea.
[20:25] <Alfihar> ssh in and every so often run: osascript -e "set Volume 0"
[20:27] * Jinie (~Jinie@ Quit (Quit: ZNC - http://znc.in)
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[20:32] * jinie (~Jinie@ Quit (Client Quit)
[20:33] * mgottschlag (~quassel@reactos/tester/phoenix64) has joined #raspberrypi
[20:33] <mgottschlag> hey, to all those english speaking people here - is it "a MMU" or "an MMU"? :)
[20:34] * smjd (~janne@pdpc/supporter/student/kosiini) Quit (Quit: Konversation terminated!)
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[20:35] * mrcan_ (~mrcan@unaffiliated/mrcan) Quit (Ping timeout: 264 seconds)
[20:35] <linuxstb> mgottschlag: I would use "an MMU", as the letter M is "em" - i.e. starts with a vowel
[20:37] * mrcan__ (~mrcan@unaffiliated/mrcan) Quit (Quit: Leaving)
[20:37] <ladoga> ricksl: your brother is connected via wifi?
[20:37] <mgottschlag> thx
[20:37] * MAssEy (~msy135@ti0018a380-dhcp1591.bb.online.no) Quit (Read error: Connection reset by peer)
[20:37] <ricksl> Na, but i thought about wifi packet spoofing and disasociation
[20:37] <ladoga> arp spoofing would have worked
[20:38] <ladoga> then just dropping his packets
[20:38] * MAssEy (~msy135@ti0018a380-dhcp1591.bb.online.no) has joined #raspberrypi
[20:39] <ladoga> i was thinking the same
[20:40] <ricksl> I already use putty every now and again to kill his skype or browser radio or whatever
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[20:42] * jinie (~jinie@ Quit (Remote host closed the connection)
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[20:46] * mike_t (~mike@rv-cl-88-200-217-119.pool.tolcom.ru) Quit (Remote host closed the connection)
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[20:57] * andrei_chiffa (~andrei_ch@AStrasbourg-551-1-56-31.w83-194.abo.wanadoo.fr) has joined #raspberrypi
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[20:59] <JakeSays> ricksl: so i tried my transistor motor controller - didnt work.
[20:59] * pkrnj (~pkrnj@bas2-montreal47-1279438707.dsl.bell.ca) Quit (Ping timeout: 245 seconds)
[20:59] <gordonDrogon> ricksl, buy him headphones..
[21:00] <ricksl> He talks loud thats the problem
[21:00] <ricksl> how didn't it work jake? motor didn't spin or not fast enough?
[21:00] <JakeSays> ricksl: blackmale him.
[21:00] <JakeSays> ricksl: didnt spin.
[21:00] <ricksl> blackmale
[21:00] <ricksl> black male
[21:00] <JakeSays> i replaced the led with the motor and it didnt work
[21:00] <JakeSays> LOL
[21:00] <JakeSays> blackmail
[21:01] <ricksl> Best laugh I had all day
[21:01] <ricksl> Did you connect the ground of your pi to the ground of the transistor
[21:02] <JakeSays> the emitter is tied to ground (pin 6)
[21:02] <ricksl> like did you keep the transistor and motor power seperate from the pi power or were you running the motor and transistor from pi power
[21:02] <JakeSays> both from the pi
[21:03] <ricksl> hm, does the motor work just from the pi power pin, say from pin 2 to pin 6
[21:04] <JakeSays> yup
[21:05] <ricksl> huh, when you first connected your transistor did you connect a resistor from your gpio signal pin to your base pin?
[21:05] * brainwash (~brainwash@unaffiliated/brainwash) Quit (Read error: Operation timed out)
[21:06] <JakeSays> yeah - there's two 100k resistors in parallel
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[21:06] <mapee> anyone using here rpi + arch-arm + rpi camera module?
[21:06] <ricksl> that might be a bit much for the signal jake, also is your transistor npn or pnp?
[21:07] <JakeSays> NPN
[21:07] <ozzzy> for motors use an L293D
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[21:08] <JakeSays> ricksl: so you're saying those resistors aren't allowing enough current through? that would make sense
[21:09] <ricksl> are you making sure that the transistor is between the load and the ground and not the load and the driving voltage
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[21:09] <JakeSays> ricksl: its between the load and the driving voltage.
[21:10] <ricksl> npn transistors need to be inbetween the load and the ground.
[21:10] <JakeSays> weird
[21:10] <ricksl> pnp transistors are between the load and driving voltage.
[21:10] <JakeSays> i'm using a circuit out of my basic stamp book.
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[21:11] <ricksl> damn now I wish I hadn't lost my forest m mimms electronics book
[21:11] <JakeSays> oh man those are AWESOME books!
[21:11] <ricksl> oh nvmind, I just saw it stuffed under my bookshelf
[21:12] <JakeSays> i used to have every one of his :(
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[21:12] <ricksl> I only have the one that they still sell in radioshack
[21:12] <ricksl> I love how radioshack bit the hand that fed them and now is looking to re-integrate into the maker community
[21:13] <JakeSays> yup
[21:13] * apollo (~apollo@unaffiliated/pkuk) Quit (Quit: ZNC - http://znc.in)
[21:13] <JakeSays> actually i was in rs last week and was surprised to see they had several of his books
[21:13] <JakeSays> i'm going to purchase them all again
[21:13] <gordonDrogon> what make transistor, what motor, voltage, etc. ?
[21:13] <gordonDrogon> I used a small signal transsitor to drive a motor recently - it was slightly over its limits though :)
[21:14] <gordonDrogon> got a bit warm.. but it was just a quick test.
[21:14] <ricksl> I do appreciate their effort, they carry arduino supplies at about online prices and they have a supplier through seeed studio so good on their part
[21:14] <ricksl> I was blown away when I saw them selling a gsm shield
[21:15] <JakeSays> gordonDrogon: the transistor is a 2N3904
[21:16] <JakeSays> gordonDrogon: the motor: http://recyclewebshop.com/varparts/elektromotors/small-electromotor-rf-300ca-09550.html
[21:16] <JakeSays> its the 09550 model
[21:17] <JakeSays> i'm powering it off of the pi, so 3.3v or 5v
[21:17] <JakeSays> and it only needs to run for about a second
[21:17] <JakeSays> ricksl: yeah i almost bought that shield
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[21:19] <ricksl> I would, I wouldn't be surprised if there is a kernel module that would allow spi data to be bound as a network device from a sim 900 module
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[21:19] <JakeSays> ricksl: i was just gonna get an arduino to drive it
[21:21] <ricksl> I do want to make this http://www.instructables.com/id/Existential-Emergency-Phone/
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[21:23] <gordonDrogon> JakeSays, ok - should be fine. driving it off 5v?
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[21:24] <gordonDrogon> JakeSays, ok - just read the stuff under the red :)
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[21:25] <gordonDrogon> JakeSays, +5v -> motor -> collector... and a reverse biased diode over the motor...
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[21:26] <JakeSays> gordonDrogon: under what red?
[21:26] <gordonDrogon> JakeSays, have to say - you can drive that directly off a gpio pin though - 12mA ...
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[21:26] <gordonDrogon> JakeSays, sorry - highlighted stuff for me is red.
[21:26] <JakeSays> ah ok
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[21:27] <JakeSays> well, my thinking for the transistor was to add some protection since i dont have a diode at the moment
[21:27] <gordonDrogon> sure.
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[21:27] <ricksl> you can use the transistor as a diode ya know
[21:27] <gordonDrogon> you'll just blow the transistor up when you halt the motor ;-)
[21:28] <ricksl> if you are in a pinch, a transistor is essentially two diodes that share a anode or cathode
[21:28] <ricksl> depending on npn or pnp
[21:28] <JakeSays> hmm. can i use an LED as a diode (since it is one)?
[21:28] <gordonDrogon> yes, you can use an LED - once or twice :)
[21:28] <gordonDrogon> actually might be interesting to see if it actually flashes when you stop the motor...
[21:28] <ricksl> You could, but I don't know if I would, depends on how high the impedence between the gpio and the ground is
[21:28] <bertrik> LEDs have rather poor reverse voltage specs IIRC
[21:29] <ricksl> it does gordon
[21:29] <gordonDrogon> when a gpio is turned off, it's a virtual short to 0v.
[21:29] <ricksl> and not just when it stops, when in normal operation it will flash.
[21:29] <JakeSays> here's the circuit i've been playing with: http://picpaste.com/txtest.png
[21:29] <JakeSays> just substitute the motor for the LED
[21:29] <gordonDrogon> ok.
[21:29] <ricksl> I remember I was playing with supercaps (fun btw if you haven't used em try it) and i bridged a led across teh motor and it lit constantly
[21:30] <gordonDrogon> You might need lower value resistors than that.
[21:30] <mapee> guys, on archlinux-arm how can i setup the rpi camera module?
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[21:30] <JakeSays> gordonDrogon: what would you suggest?
[21:30] <ricksl> you said you had a 220 ohm resistor
[21:30] <gordonDrogon> yea, that'll saturate it..
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[21:31] <ricksl> mmm saturate me
[21:31] <JakeSays> lol 50K to 220 - quite a jump
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[21:31] <ricksl> but consider, the current to the base of the transistor should be proportional to the emmiter collector current
[21:32] <gordonDrogon> you could work out the value needed - get the gain of the transistor and work out the current needed through the base to achieve the 12mA needed by the motor. but stick a 220 in - the worst that can happen is you blow up the cheap transistor. and the Pi...
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[21:32] <ricksl> usually bya function of β
[21:32] <ricksl> by a*
[21:32] <JakeSays> eh, i'd rather not blow up the pi..
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[21:32] <ricksl> Dont' scare him gordon, I doubt the pi would blow
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[21:32] <gordonDrogon> :)
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[21:33] <ricksl> okay so usually when a transistor blows it just becomes a short between its emmiter collector
[21:33] <ricksl> and when that happens you will see a pretty puff of smoke, and at that point pull the plug
[21:34] * idstam (~johan@c-657a72d5.027-359-73746f23.cust.bredbandsbolaget.se) Quit ()
[21:34] <gordonDrogon> not a terribly high gain transistor - about 60 according to the sheet at the currents we're looking at.
[21:34] <JakeSays> so with a 220, the motor started spinning when i wrote 1, but wouldn't stop when i wrote 0
[21:34] <gordonDrogon> I presume it's currently not working - did the LED work?
[21:34] <JakeSays> i took the led out
[21:35] <gordonDrogon> ok
[21:35] <gordonDrogon> try a higher resistor then :)
[21:35] * zamba (marius@flage.org) Quit (Remote host closed the connection)
[21:35] <ricksl> can you put 220 in series
[21:35] * gordonDrogon nods.
[21:35] <ricksl> and someone help this poor chap get his camera module working on arch
[21:35] <JakeSays> in series with.. another 220?
[21:35] <harrisr> http://lmgtfy.com/?q=oklahoma+city+thunder
[21:37] <JakeSays> i have a 470
[21:37] <ricksl> give that a go.
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[21:37] <gordonDrogon> don't have a camera, but there were 2 firmware updates in quick succession when the camera came out... so I suspect making sure Arch has the updated firmware might be a start...
[21:37] <gordonDrogon> 470 = 220 + 220 :)
[21:38] <JakeSays> gordonDrogon: we call that 'enron math'
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[21:38] <gordonDrogon> Heh.. I always wanted someone to make a new shredder called The Enron 5000 ... ...
[21:39] <gordonDrogon> Anyway, there are Pi seconds in a nanocentury.
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[21:39] <mapee> thanks gordonDrogon
[21:39] <JakeSays> ha! that worked!
[21:40] <ricksl> goes on and off?
[21:40] <JakeSays> yup :)
[21:40] <ricksl> how many cs majors does it take to turn on a motor
[21:40] <ricksl> lets find otu
[21:40] <JakeSays> ROFL!
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[21:41] <ricksl> Na I am not majoring in it.
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[21:44] <JakeSays> ok so now i need to get a photoresistor working
[21:46] <ricksl> Oh btw jake, I am currently working on an end of year physics project that uses an arduino, I bought one with a grant, and at the end of the project I can keep it, this will be my third one so do you want it?
[21:46] <JakeSays> ricksl: oh! yes please :D
[21:46] <ricksl> I feel like you would put it to good use.
[21:47] <JakeSays> that i would!
[21:47] <ricksl> Alright when I am done with the project I can male it to you
[21:47] <JakeSays> LOL
[21:47] * ebswift (~ebswift@ppp118-208-131-150.lns20.bne1.internode.on.net) has joined #raspberrypi
[21:47] <ricksl> (I know what I did)
[21:47] <JakeSays> thats aewsome. i appreciate it!
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[21:55] <gordonDrogon> photoresistor - working on the Pi?
[21:55] * divine (~divine@2001:470:8247:1::42) Quit (Ping timeout: 264 seconds)
[21:55] <JakeSays> gordonDrogon: yeah
[21:56] <JakeSays> need to detect light change
[21:56] <gordonDrogon> JakeSays, ok.... go google delta sigma 1-bit A/D conversion :)
[21:56] * divine (~divine@2001:470:8247:1::42) has joined #raspberrypi
[21:56] <gordonDrogon> or you can fake it with a potentiometer and carefull adjustment...
[21:57] * enque (~enque@ip70-160-27-9.hr.hr.cox.net) has joined #raspberrypi
[21:58] <JakeSays> gordonDrogon: yeah.. i take it none of the GPIO pins support a/d conversion?
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[21:58] <gordonDrogon> JakeSays, that's right..
[21:58] <ricksl> thats why piggybacking arduinos to pis is so popular
[21:58] <gordonDrogon> you can do it though - I did an LDR input a while back, but I neve wrote it up.
[21:58] <ricksl> even though there are better adc circuits, arduino is very friendly to use
[21:58] <gordonDrogon> indeed.
[21:59] <JakeSays> gordonDrogon: how did you do it?
[21:59] <gordonDrogon> JakeSays, well.. I connected: +3.3 -> LDR -> capacitor -> 0v
[21:59] <gordonDrogon> and the gpio went between the cap and the LDR.
[22:00] <ricksl> I like that gordon
[22:00] * robscomputer (~robscompu@c-24-130-183-245.hsd1.ca.comcast.net) Quit (Ping timeout: 276 seconds)
[22:00] <JakeSays> is LDR == photoresistor?
[22:00] <gordonDrogon> write a program, the discharge the cap - pin to output, set low, then change to input - then wait for the voltage to go to 1.
[22:00] <gordonDrogon> the time is proportional (ish) to the light falling on the LDR.
[22:00] <gordonDrogon> I did it in a loop, constant charge/discharge, so I effectively had a light sensirive frequency generator.
[22:01] <ricksl> wow since when did the atmegas that ship with the arduino switch to the 328p variant?
[22:01] <gordonDrogon> there is a huge danger of blowing up the gpio pin though - I think I also had a 100R on the gpio input.
[22:01] <JakeSays> i think thats how my homework board does it - it measures the time it takes to discharge the cap
[22:01] <gordonDrogon> ricksl, some years back.
[22:02] <ricksl> really, cause i know they used the 328 but didn't know they switched to the low power variant
[22:02] <gordonDrogon> JakeSays, yup. the paddles on the Apple II had a 555 in monostable mode - cpu triggered the monostable, then counted until it tripped. this is the same idea.
[22:02] * user82 (~user82@unaffiliated/user82) Quit (Remote host closed the connection)
[22:02] <ricksl> I mean power is still high relative to how much it could use with the leds and ftdi chip
[22:03] <gordonDrogon> I have one of thisr big-time watches - still on the original 3v cell - made it almost a year ago now.
[22:03] <gordonDrogon> 10/6/2012 on the date box on it!
[22:03] * DexterLB (~dex@95-42-18-62.btc-net.bg) Quit (Ping timeout: 252 seconds)
[22:03] <gordonDrogon> it says 9:08 - it runs fast.
[22:03] <gordonDrogon> brb
[22:04] <KameSense> hello there, anyone knows if there is a HCL list for USB 2 hubs somewhere ?
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[22:06] <JakeSays> well dangit - i have an AD5220, which, btw, should be called DA5220 since it definitely doesnt convert analog to digital.
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[22:11] <x29a> JakeSays: wotcha doin with it?
[22:11] <x29a> is it a capacitive sensor?
[22:12] <JakeSays> see, back in the 80's, if i needed a part i could just grab some old surplus device and steal the part from it.. these days, with all this surface mount stuff, i can't even SEE the parts :(
[22:12] <JakeSays> x29a: its a digitial pot
[22:12] <JakeSays> *digital
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[22:12] <ricksl> Preaching to the choir
[22:13] <gordonDrogon> yea, we're all greybeards here :)
[22:13] <ricksl> pft speak for yourself gordon
[22:14] * Out`Of`Control (~Viper@unaffiliated/outofcontrol/x-1373891) has joined #raspberrypi
[22:14] <JakeSays> hmm. now that i have a multimeter i can probably finish a project i started 6 months ago. i have an old 36" lcd tv that i stripped everything but the backlighting and powersupply off of. i want to turn it in to a light table.
[22:14] <ricksl> I just seem old because I am boring and talk about unix with a fervor that makes it seem as though I lived it.
[22:15] * Xark notes he is clean shaven. :)
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[22:16] <ricksl> It gets lonely here, this is an area of the goonies where knowing how to use word is a skill, not allot of people with experience in what I dabble in
[22:16] <Xark> The trick is to just get the really old surplus devices. My best "hauls" recently have been from old VCRs (tons of discrete components, buttons, displays and xtals etc.).
[22:17] <JakeSays> Xark: old surplus is hard to come by around here
[22:17] <JakeSays> although i do have an old vcr.. hmm
[22:17] <ricksl> I find fun stuff in high power equipment, like the crt screens people are constantly throwing out or computer power supplies
[22:18] <JakeSays> oh! i have a bunch of power supplies.
[22:18] <Xark> JakeSays: Yeah. I was looking at a electronic waste recycling event yesterday, I wanted to raid the waste for good carcasses (but not allowed). :)
[22:18] * m8 (~mor@unaffiliated/m8) Quit (Ping timeout: 260 seconds)
[22:18] <ricksl> I argued someone into the ground about that once xark
[22:19] <ricksl> someone threw away a microwave at the dump, I asked them for it and they said they wanted to recycle it.
[22:19] <Xark> ricksl: Yeah, seems like an annoying policy (but probably needed for liability etc. reasons).
[22:19] * Jevermeister (~Jevermeis@unaffiliated/jever) Quit (Ping timeout: 260 seconds)
[22:19] <ricksl> they got a better one and were getting rid of it.
[22:19] <ricksl> you know how useful microwave boards are, its practically a large high current timed relay
[22:19] <JakeSays> Xark: there's good money in recycling electronic waste - they didnt want you cutting in to their profits
[22:20] <ricksl> and those microwave transformers, let me tell you the fun you can have with those.
[22:20] <Xark> JakeSays: Yeah, probably that too. :)
[22:20] <gordonDrogon> well I'm mostly clean shaven too - I was just being metaphotic or something. (ps. get off my lawn!)
[22:21] <JakeSays> i've been packing around a 100lb exabyte robotic tape backup system for years. my wife doesnt understand why i wont throw it away. its just full of fun stuff
[22:21] <ricksl> The oldest thing I own is a tv with a vcr built into it
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[22:22] <gordonDrogon> I own some old family stuff, but that's not too geeky.
[22:22] <JakeSays> i have a piece of lab equipment that was built in '84
[22:22] <Xark> JakeSays: Ahh, good old Exabyte tapes. Great for backing up, but terrible for actually restoring (in my experience). :)
[22:23] <gordonDrogon> Not sure if this: http://unicorn.drogon.net/stuff/mk14.jpg is older than this: http://unicorn.drogon.net/lode.jpg though.
[22:23] <JakeSays> gordonDrogon: very cool!
[22:23] <ricksl> you are really dating yourself there
[22:23] <gordonDrogon> sure.
[22:24] <gordonDrogon> I have a BBC Micro, but everyone has those.
[22:24] <ricksl> Im teasing
[22:24] <ricksl> unless you live in america
[22:24] <JakeSays> closest i have to a bbc micro is this pi.
[22:24] <gordonDrogon> incidentally, who was the chap doing the USB low power stuff? I have a Pi that's been running it for hours now..
[22:25] <nid0> I think the oldest working computery stuff I have is a 44MB ibm 0665 hdd
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[22:25] <Xark> In my garage I have a http://www.sol20.org/ (working I think - tested in 90s) and also a http://www.vintage-computer.com/altair8800.shtml (but gutted sadly, mouse made a home in it). However, neither machine was mine (I just prevent someone from tossing it). The Altair case might be fun to revive someday...
[22:26] <JakeSays> Xark: wow very cool!
[22:26] <Xark> (Plus usual complement if old Vic-20, Amiga, C64, Apple, CoCo etc.)
[22:27] <ricksl> my school had a tandy personal computer expansion board, but they ended up tossing it, was quite pissed about that.
[22:27] <ricksl> it was an expansion board and a printer designed for it, no clue what the expansion board did.
[22:27] * Zottelchen (~Zottelche@dslb-188-106-003-239.pools.arcor-ip.net) Quit (Read error: Connection reset by peer)
[22:28] <gordonDrogon> there wan't much in the UK prior to the Sinclair MK14 - I guess that was the UK's Altair system...
[22:28] <JakeSays> i've moved so many times over the years.. havent been able to keep my collection
[22:28] <gordonDrogon> hard to import stuff, or even know what was going on in the US at that time.
[22:28] <JakeSays> coolest machine i had was an apple lisa
[22:28] <gordonDrogon> Lisas go for a good sum on ebay if they're working.
[22:29] <Xark> JakeSays: Yeah. Sadly I had to toss a bunch of less notable machines and "cool stuff" a few years ago (bunch of printers, CRTs and extra Apple 2s etc.). Now that I am back into electronics I rue the day... :)
[22:29] * pengu (~pengu@lpzg-4dbdf5e7.pool.mediaWays.net) Quit (Read error: Connection reset by peer)
[22:29] <ricksl> oh my lord I just found a radioshack site that has specifications for the tandy personal computer http://support.radioshack.com/productinfo/ProductResults.asp?Name=Tandy_Desktops&ID=001001001
[22:29] <Xark> JakeSays: Ooo, yeah, that would be a keeper I think.
[22:29] <JakeSays> it was an amazing machine.
[22:29] * pengu (~pengu@lpzg-4dbdf5e7.pool.mediaWays.net) has joined #raspberrypi
[22:29] <Xark> ricksl: Hehe, I believe you can synth one up on a FPGA fairly easily. :)
[22:30] <ricksl> I always wanted to do fpga dev but thats a whole other animal than the arduinos I am used to
[22:30] <Tachyon`> anyone know which tandy PC was console style with a 5.25" drive in the side?
[22:30] <JakeSays> ricksl: nah those aren the real tandy computers. those died with the last TRS model
[22:30] <Tachyon`> 256KB RAM if I remember rightly too
[22:30] <Xark> ricksl: Indeed. I've been bitten recently... :)
[22:31] <Tachyon`> saw one years ago but never managed to locate that particular one
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[22:31] * ebswift (~ebswift@ppp118-208-131-150.lns20.bne1.internode.on.net) Quit (Read error: Connection reset by peer)
[22:31] <Xark> Tachyon`: Hmm, there was a Model III (for business use) IIRC. I think it had a 68000
[22:31] * Jevermeister (~Jevermeis@unaffiliated/jever) has joined #raspberrypi
[22:31] <Tachyon`> this one was an 8086/8088 based machine
[22:31] <Tachyon`> ran MS-DOS
[22:31] <JakeSays> Xark: model 3 was z80 based.
[22:31] <Tachyon`> but sort of amiga style
[22:32] <Tachyon`> with the 5.25" drive in the side fo the keyboard/computer
[22:32] <JakeSays> iirc the model 2 had an 68k and a z80
[22:32] <Xark> JakeSays: Hmm, OK, but didn't they have one with Unix (and I thought it had 68K)?
[22:32] <JakeSays> Xark: that was the model 2
[22:32] <JakeSays> ran xenix
[22:32] <Xark> JakeSays: Ahh, OK.
[22:32] <ricksl> I got into contact with some guy involved in bitcoin and cryptography, wants to take me on as his protege and have me help with development of some fpga cryptogrophay tool
[22:33] <ricksl> cryptography
[22:33] <JakeSays> Xark: it had 8" floppies. awesome machine.
[22:33] <Xark> Tachyon`: This computer? http://www.old-computers.com/museum/computer.asp?c=766&st=1
[22:33] <Tachyon`> no, lol
[22:33] * ldav15 (~ldavis@ has joined #raspberrypi
[22:33] <Xark> JakeSays: Yeah, I used to play on it at the store (crazy expensive for a kid). :)
[22:34] <Tachyon`> the computer and floppy drive were in the keyboard, like an ST or Amiga
[22:34] <Tachyon`> but 5.25"
[22:34] * Zync (55f0f7f2@gateway/web/freenode/ip. has joined #raspberrypi
[22:34] <Zync> can someone tell me what those little slots in the rbp are for?
[22:34] <JakeSays> Xark: lol so did i!
[22:34] <Zync> like mini ram thinies
[22:34] <Tachyon`> one is for a camera
[22:34] <Tachyon`> the other is for a DSI display
[22:34] <Tachyon`> should the binary blob required to drive it ever appear
[22:35] <Xark> Tachyon`: Not sure. However, they made a lot of (for me) forgettable clones for a period. Maybe Tandy 1000?
[22:35] <JakeSays> Tachyon`: are you thinking of the color computer?
[22:35] <Tachyon`> no, I've had both CoCos and a Dragon
[22:35] <Tachyon`> this was an IBM compatible
[22:36] <Zync> what about the flux compacitor in the back of the rbp? what is it for?
[22:36] <Zync> is it 55mph?
[22:36] <Zync> and i go back to the future?
[22:36] <Xark> Tachyon`: Enter "tandy computers" into a Google Image search and see if you spot it (they had an amazing number of models over the years it seems). :)
[22:36] <Tachyon`> ah, teh tandy 1000 hx is similar but 3.5"
[22:38] <Tachyon`> ahh
[22:38] <Tachyon`> 1000 EX
[22:38] <Tachyon`> http://www.old-computers.com/museum/photos/tandy_1000ex_1.jpg
[22:38] <Tachyon`> that one
[22:38] <JakeSays> Xark: ah no - it was the model 16 that had the 68k and z80.
[22:38] <Tachyon`> curious beast
[22:38] * Xark notes this cat looks so disappointed with his Tandy... -> http://commons.wikimedia.org/wiki/File:Sabu_with_his_Tandy_1000_Computer.jpg
[22:38] <Tachyon`> well what do you expect, it has no mouse
[22:38] <gordonDrogon> tandys never really caught on here in the UK either.
[22:38] <ricksl> HA HA HA
[22:39] <Zync> http://www.appworld.co/IPhoneApps/IPhoneApps_Detail/20607/Flux-Capacitor-IPhone-Mobile-App/ this thing is attached to my rbp, what is it?
[22:39] <Xark> JakeSays: Yeah, that is the system I was thinking of. CP/M or Xenix. :)
[22:39] <gordonDrogon> the 'big 3' were all too expensive for home users - TRS80, CBM PET and Apple II..
[22:39] <gordonDrogon> The MK14 then the ZX80/81/spectrum ...
[22:39] <JakeSays> i had a model 1 and 3
[22:39] <JakeSays> i really wanted a model 4
[22:39] <Tachyon`> not to mention commodore started punching out the spaces for the additional RAM chips on the PET to stop people buying low spec ones and adding their own 4116s
[22:39] <gordonDrogon> and the bbc B about the same time as the spectrum.
[22:40] * m8 (~mor@unaffiliated/m8) Quit (Ping timeout: 246 seconds)
[22:40] <Tachyon`> the BBC B was an excellent machine, still have one setup here
[22:41] <Tachyon`> other than the mains filter caps making the magic smoke it's been fault free for the 30 years since it was made
[22:41] * AeroNotix (~xeno@aboh159.neoplus.adsl.tpnet.pl) has joined #raspberrypi
[22:41] * Xark wore the key-cap stickers off of his PET 2001 8K "calculator keyboard" (and I think that machine may be the origin of later wrist problems...)
[22:41] * taqutor (uid8051@gateway/web/irccloud.com/x-rqnnknexndynepix) has joined #raspberrypi
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[22:42] <Tachyon`> didn't the calculator style ones have a clear plastic cap over the key legends on each key
[22:42] * Xark wants to try http://www.stepinfusion.com/projects/pet2001fpga/ one of these days for nostalgia. :)
[22:42] <Tachyon`> or did I see one someone had 'improved' (possibly for that very reason)
[22:43] <Xark> Tachyon`: Yeah, that might have helped for the first year... :)
[22:43] * Tachyon` doesn't miss PET Basic, saw far too much of that on the C64
[22:43] <dagerik> i wanna test out xmbc. how do i backup the current arch install and restore later?
[22:43] <Tachyon`> audio? high res graphics? you won't be using any of those -.o
[22:44] <Tachyon`> (actually you could use the sprites with a bit of poking, the manual had an example with a hot air balloon)
[22:44] <ricksl> I actually fooled around with basic on a parallax propeller startup board, neat stuff
[22:44] <gordonDrogon> Return to BASIC - for that olde-fashione thing on the Pi :)
[22:44] <Tachyon`> the propeller can run basic?
[22:44] <Tachyon`> news to me -.o
[22:44] <ricksl> very well at that
[22:44] <ricksl> one sec
[22:44] <Tachyon`> I have a prop in my altair replica
[22:45] <gordonDrogon> https://projects.drogon.net/return-to-basic/
[22:45] <Tachyon`> doing duty as a terminal
[22:45] <ricksl> http://hackaday.com/2012/06/08/building-a-1980s-microcomputer-with-a-parallax-propeller/
[22:45] * Xark links to http://www.pagetable.com/?p=46 (6602 MS BASIC "source code" for various flavors). I had 1st version in PET and 2nd "cut down" version in my OSI (which was actually my first system).
[22:45] * Zync (55f0f7f2@gateway/web/freenode/ip. Quit (Quit: Page closed)
[22:46] * KameSense (~KameSense@AMontpellier-654-1-43-102.w92-143.abo.wanadoo.fr) Quit (Remote host closed the connection)
[22:46] * teepee (~teepee@p508447FC.dip0.t-ipconnect.de) Quit (Ping timeout: 252 seconds)
[22:46] <Xark> ricksl: Yeah, that is kind of neat (and I bought a 6502 chip to maybe do something similar with an AVR). Now has its own page http://propeddle.com/
[22:46] <Tachyon`> hrm, that's quite impressive
[22:47] * teepee (~teepee@p50846B81.dip0.t-ipconnect.de) has joined #raspberrypi
[22:47] <ricksl> I have had my eye on this for awahile and will probably buy it before uni starts this fall http://propellerpowered.us/index.php?route=product/product&path=25_73&product_id=55
[22:48] <Xark> ricksl: Another similar project is Veronica http://quinndunki.com/blondihacks/?p=1291
[22:48] <ricksl> Bah the veronica
[22:48] * KameSense (~KameSense@AMontpellier-654-1-43-102.w92-143.abo.wanadoo.fr) has joined #raspberrypi
[22:48] <ricksl> much more ambitious but much easier to get lost reading the documentation
[22:50] <ricksl> I like the propeller pocket computer, sd slot, vga out, wiimote nunchuck support, stereo sound ps2 slot, 8 cures ect
[22:50] <gordonDrogon> I wish I had the time ...
[22:50] <ricksl> cores*
[22:50] <Xark> ricksl: I had the AVR generating "retro computer" video in software, so I could probably do something like Propeddle but with just a few chips (Veronica is a bit "overkill" for what the design gets you). http://imgur.com/a/JO4Cq (the top screen is basically identical video as I would get from my OSI-C1P system). http://www.vintage-computer.com/vcforum/showthread.php?27291-OSI-Challenger-1P
[22:51] <gordonDrogon> Have you seen the Fignition project?
[22:51] <Xark> gordonDrogon: Hmm, sound familiar...
[22:52] <ricksl> I mean video generation isn't THAT hard, i am not going to say any microcontroller could do it.
[22:52] <Xark> gordonDrogon: Interesting design....but forth. :)
[22:53] * xCP23x (~xCP23x@ has joined #raspberrypi
[22:53] <Xark> ricksl: It was non-trivial to get Tiled rendering on 16Mhz AVR (4 cycles per pixel - a flash read takes 3 cycles). :)
[22:53] <ricksl> but propeller has advantages in that it can delegate video generation to one of its cogs, in fact some people use it for that exclusively. http://hackaday.com/2012/09/03/an-stm32-processor-powers-this-pc/
[22:53] <taqutor> Hi.
[22:54] * m8 (~mor@unaffiliated/m8) has joined #raspberrypi
[22:54] <taqutor> Anyone here have experience using USB projectors on Linux, or even better, a Pi?
[22:54] <Xark> ricksl: Bit map is much easier (but 2K on 328 is not suitable for anything but CHIP-8).
[22:54] <ricksl> i don't doubt it was non trivial
[22:54] <Darkwell> ricksl, build a relay that can switch of the network cable to his computer
[22:55] <ricksl> Oh we are still talking about that
[22:55] <Darkwell> just read the backlogs
[22:55] <Xark> ricksl: I have also done VGA with 1K 36Mhz 8051 (that was even a bit more painful) -> http://imgur.com/nDceh
[22:55] <Darkwell> switch off even
[22:56] <ricksl> yeah I figured if it is bothering me, or more likely stealing the houses bandwith, I will just ssh into it and kill skype from there.
[22:56] <ricksl> I am digging that xarl
[22:56] * harris (~harris@unaffiliated/harris) has left #raspberrypi
[22:57] <Darkwell> hehe
[22:57] <ricksl> Like I said, I have been blessed with a house full of macs and a technologically ignorant family
[22:57] <Darkwell> add a crontab in his computer
[22:58] <Darkwell> that checks with your achine if its ok
[22:58] <JakeSays> you know what would be fun to do - build an 8008 out of discrete transistors
[22:58] <Darkwell> if not shut him down somehow
[22:58] <Darkwell> =)
[22:58] <taqutor> http://www.youtube.com/watch?v=xweiQukBM_k
[22:58] <taqutor> You're welcome.
[22:58] <ricksl> that doesn't sound like fun jake
[22:58] <Xark> Darkwell: Have you seen this? http://www.pi-supply.com/product/pi-supply-raspberry-pi-power-switch/
[22:59] <JakeSays> ricksl: no? its only about 2800 transistors
[22:59] * NeilKnowsBest (~NeilKnows@c-76-120-73-48.hsd1.co.comcast.net) has joined #raspberrypi
[22:59] * m8 (~mor@unaffiliated/m8) Quit (Ping timeout: 252 seconds)
[22:59] <SpeedEvil> relays, now that's fun.
[22:59] <ricksl> i thought it was an order of magnitude more, if thats the case it might be worth looking into
[22:59] <SpeedEvil> or Lego
[22:59] <SpeedEvil> 2800 transistors...
[23:00] <Xark> JakeSays: There is a full transistor level layout for 6502 that I believe somebody turned into 6502 FPGA design (cycle accurate enough to put in real machines). :)
[23:00] <ricksl> 2800 mechanical logic gates
[23:00] <JakeSays> ricksl: thats the last one with a decent gate count
[23:00] <Darkwell> Xark, nice one
[23:00] <JakeSays> Xark: yeah the 8008 has been reverse engineered as well
[23:00] <SpeedEvil> that is borderline possible to fit in a dip 40 with multilayer boards and tiny transistors
[23:00] <Xark> Darkwell: It was a successful kickstarter campaign.
[23:01] * ncopeland (ad1d4c69@gateway/web/freenode/ip. Quit (Ping timeout: 250 seconds)
[23:01] <JakeSays> SpeedEvil: nah i'd want to do it with full size transistors.
[23:02] <ricksl> Sounds awful
[23:02] <SpeedEvil> 2n3055h
[23:02] <Xark> JakeSays: I wonder what speed it would run with all discrete. Probably not fast...
[23:02] <JakeSays> Xark: lol just getting it to run would be an accomplishment
[23:03] <SpeedEvil> not really that hard
[23:03] <SpeedEvil> once you have a compiler
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[23:03] * dreamon (~dreamon@unaffiliated/dreamon) Quit (Ping timeout: 256 seconds)
[23:03] <JakeSays> or an assembler
[23:03] <ricksl> I feel like speed would be an issue
[23:04] <Xark> JakeSays: Probably not nearly as fun (or crazed), but have you seen http://www.altairkit.com/ or http://www.brielcomputers.com/
[23:04] * pengu (~pengu@lpzg-4dbdf5e7.pool.mediaWays.net) Quit (Ping timeout: 245 seconds)
[23:04] <zastaph> when your pi starts to be sluggish i guess its time to stop adding services :p
[23:04] <JakeSays> Xark: very cool
[23:05] * Alezaru (alz@rob76-4-82-238-178-248.fbx.proxad.net) Quit (Ping timeout: 276 seconds)
[23:05] <JakeSays> ricksl: oh actually it was 3500 gates. the 4004 had 2800.
[23:05] <JakeSays> the original 8008 ran at .5mhz
[23:05] <ricksl> I feel like that is still doable.
[23:05] <ricksl> we have come quite aways
[23:05] * Xark has his FPGA 6502 SoC running at ~25Mhz no problem (could be >30Mhz, but VGA pixel clock is 25Mhz).
[23:05] <JakeSays> yup
[23:06] <JakeSays> i have a schematic somewhere..
[23:06] * NIN101 (~NIN@p5DD29BA0.dip0.t-ipconnect.de) Quit (Remote host closed the connection)
[23:06] <ricksl> so xark if i wanted to use an fpga to do what you are doing where would I start\
[23:07] <ricksl> what is a good fpga dev board
[23:07] * MarquessDeBonBon (~epidural@cpc5-lutn10-2-0-cust681.9-3.cable.virginmedia.com) Quit ()
[23:07] <Xark> ricksl: Well, I am using very inexpensive $30 FPGA (Lattice MachXO2). Here is pic (from when I got VGA text mode working) http://imgur.com/a/3aoEx
[23:07] * Jevermeister (~Jevermeis@unaffiliated/jever) Quit (Quit: /)
[23:08] <Xark> ricksl: (note that most of that in the pic isn't hooked up yet, just VGA, PS/2 and 6502/RAM/ROM).
[23:08] <ricksl> it looks nice and clean but I don't know what is going on
[23:08] * m8 (~mor@unaffiliated/m8) has joined #raspberrypi
[23:08] * user82 (~user82@unaffiliated/user82) has joined #raspberrypi
[23:09] <Bushmills> JakeSays: nope, there are later ones, high speed in comparison, with a similar low gate count
[23:10] <Xark> ricksl: If you are starting, I would recommend the Papilio Pro with Logic Quick Start (with also has VGA out). http://store.gadgetfactory.net/logicstart-megawing-papilio-bundle/ There is a nice free tutorial here http://hamsterworks.co.nz/mediawiki/index.php/FPGA_course (this is what I did)
[23:10] <JakeSays> Bushmills: oh? any with a smaller gate count?
[23:10] * lupinedk is now known as Lupinedk
[23:10] <Xark> ricksl: There is also a decent Papilio Pro community (and some fun projects, like Pac-Man in a chip etc.).
[23:10] <Bushmills> slightly higher, but considerably higher speed. i'm thinking of the novix nc4000
[23:10] <ricksl> I heard good things about the papilio\
[23:10] <Xark> ricksl: (er Papilio One and Papilio Pro [larger FPGA]).
[23:11] <ricksl> just more logic gates right?
[23:11] <Bushmills> i should have clean room reimplementation schematics on the server, hang on.
[23:11] <Xark> ricksl: Newer FPGA version (Spartan6 vs Spartan3), also has 8MB of DRAM
[23:11] <ricksl> sounds good
[23:11] <Xark> ricksl: Otherwise you have ~24KB of internal RAM
[23:11] * Chiyo (Chiyo@pdpc/supporter/active/chiyo) has joined #raspberrypi
[23:11] <ricksl> so why such a small price difference for such a large upgrade
[23:12] * Chiyo (Chiyo@pdpc/supporter/active/chiyo) has left #raspberrypi
[23:12] <Bushmills> http://forthfreak.net/index.cgi?ForthCPUs the FCPU1 schematics (other link is dead) is the clone
[23:12] * IT_Sean (~IT_Sean@applefritter/IRCStaff/UltimateMacUser1) Quit (Quit: Linkinus - http://linkinus.com)
[23:12] * Perdouille (~Perdouill@ADijon-158-1-31-73.w92-130.abo.wanadoo.fr) has joined #raspberrypi
[23:12] <Perdouille> Hi
[23:12] <Xark> ricksl: Well, Spartan6 is a newer and more capable FPGA part (and the raw part is more expensive). S6 has ~64KB internal memory as well as the additional 8MB external DRAM.
[23:13] <Bushmills> i mentioned it a while ago here - feature include execution of up to 5 instructions per clock cycle :)
[23:13] * pengu (~pengu@lpzg-4d05d8d6.pool.mediaWays.net) has joined #raspberrypi
[23:13] <ricksl> interesting
[23:13] <Perdouille> Got a problem with my raspberrypi.. I was on ssh, and suddendly it crashed
[23:13] * BlackBishop (~dexter@ Quit (Ping timeout: 248 seconds)
[23:13] <Perdouille> and I can't start it again
[23:13] <JakeSays> forth is a cool language
[23:13] <Xark> ricksl: Designs tend to run faster on Spartan6 too.
[23:14] <Bushmills> single cycle subroutine call. zero cycle subroutine return
[23:14] <Xark> Bushmills: Yeah, this is a fairly amazing CPU for how small it is http://www.excamera.com/sphinx/fpga-j1.html
[23:14] <Bushmills> (return gets a free ride with the last instruction in the subroutine
[23:14] <Perdouille> (Red led start, green led start for a second if a SD card is in then stop.)
[23:14] <Bushmills> )
[23:15] <Bushmills> interesting about most if not all of those cpus is not only that the gate count, and their complexity is low, but so is size and complexity of the programs coded for them
[23:16] <Xark> ricksl: If you want "deluxe" Papilio, there is also Pipestrello (with HDMI, audio, PMOD port, SD card and 64MB DRAM built in) for ~$150 -> http://pipistrello.saanlima.com/index.php?title=Welcome_to_Pipistrello
[23:16] <Xark> ricksl: It has a much larger Spartan6 part (so can handle much larger designs and has like >200KB of internal RAM)
[23:17] <Bushmills> Perdouille: no video monitor attached?
[23:17] * turtlethumper (~turtlethu@c-98-198-128-151.hsd1.tx.comcast.net) Quit (Read error: Operation timed out)
[23:17] <ricksl> hm gives me something to think about
[23:17] <Perdouille> Bushmills: No
[23:17] <gordonDrogon> got distracted fixing wifeys PC there.
[23:17] <Bushmills> sort of difficult to diagnose. i'd fsck the sd card in another computer
[23:17] <gordonDrogon> fignition & I think there is an AVR arduino compatible game platform that does video in software - harks back to the old zx80 days.
[23:17] <Perdouille> It was back-powered by a "Heden" hub
[23:18] <Xark> gordonDrogon: Perhaps Uzebox http://belogic.com/uzebox/ ?
[23:18] <Perdouille> (Only way to make my external HDD working with it)
[23:18] <Perdouille> i'll try the fsck, thanks
[23:18] * dreamon (~dreamon@unaffiliated/dreamon) has joined #raspberrypi
[23:18] <ricksl> teh gameduino
[23:19] <ricksl> the, my typing is bad since my fingers are blistered so give me a break with spelling
[23:19] <Xark> ricksl: Ahh, yes, that too (which is a small Spartan3 FPGA board running that J1 forth CPU, BTW).
[23:19] <ricksl> I know, i just looked it up on the froth page :P
[23:20] <Xark> ricksl: I bet you could get that running on a Papilio One without too much trouble. http://excamera.com/sphinx/gameduino/making.html
[23:20] * bsdfox (~Bob@unaffiliated/bsdfox) has joined #raspberrypi
[23:20] <gordonDrogon> Xark, that wasn't the game avr I'd seen, but I guess the principle is the same - pretty neat though :)
[23:20] <Perdouille> Must leave, thanks for help
[23:21] * Perdouille (~Perdouill@ADijon-158-1-31-73.w92-130.abo.wanadoo.fr) Quit (Read error: Connection reset by peer)
[23:21] <Xark> gordonDrogon: Really. Now I am curious about other ones... could it be Gameduino?
[23:21] <gordonDrogon> wifeys PC just threw out its SSD. SSDs currenty suck IMO.
[23:21] <Xark> gordonDrogon: (but that is hardware video...)
[23:21] <ricksl> hold that thought gordon
[23:22] <Xark> gordonDrogon: There is also TVout stuff (software only) -> https://code.google.com/p/arduino-tvout/
[23:22] <gordonDrogon> gameduino looks too polished :)
[23:22] <ricksl> https://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2005/gts7/index.html
[23:22] <JakeSays> gordonDrogon: yeah we mirror our ssd's with hdd's
[23:23] <Xark> gordonDrogon: Another possibility is http://nootropicdesign.com/hackvision/ (which is just "Arduino" preloaded with TVout)
[23:23] <gordonDrogon> JakeSays, yea, her data was ok - on the server, just nist stuff in her home directory that was the issue - after it locked up a few times I seem to have been able to copy most of it off though.
[23:23] <ricksl> no one see my link *sniff*
[23:24] <gordonDrogon> ricksl, looking at it now.
[23:24] * dreamon (~dreamon@unaffiliated/dreamon) Quit (Ping timeout: 260 seconds)
[23:24] <gordonDrogon> excellent stuff. just goes to show what you can do if you try :)
[23:25] <gordonDrogon> seems the old Apple II stuff is still going strong & people are still writing for it too!
[23:25] <steve_rox> apple loyalists
[23:25] <JakeSays> ricksl: what is that link? your stuff?
[23:25] <ricksl> so wait xark there is linux on fpgas too?
[23:25] <ricksl> i wish
[23:25] <Xark> ricksl: Very nice. :)
[23:26] <gordonDrogon> but hey - we have this raspberry pi thing now ;-)
[23:26] <JakeSays> mmm. caffeinated cinnamons. i want.
[23:26] <ricksl> no none of that is me, i was just showing you an example of an avr software video render
[23:26] <Xark> ricksl: Sure, for larger FPGA (at least for memory). Papilipo Pro can run a soft-core that boots Linux (e.g.) -> http://www.gadgetfactory.net/2012/10/linux-on-the-papilio-pro/
[23:27] <ricksl> I mean i know it has to emulate a cpu
[23:28] <Xark> ricksl: Not emulate, it becomes a CPU. :)
[23:28] <ricksl> Okay yeah poor choice of words on my part.
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[23:30] <Xark> ricksl: No worries. :)
[23:31] <ricksl> hm the gameduino with the maple clone board seems to be a nice pair
[23:32] * Xark googles and discovers http://valentfx.com/prj/fpga-dev/15-fpga-mark-1-raspberry-pi-hs Hmm.
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[23:33] <ricksl> oh yeah those logi boards, remember seeing those when they did an article about bitcoin mining with a tandem beaglebone
[23:33] * Xark is also monitoring http://www.astro-designs.com/pixi-200.php , but it seems to have stalled (and kind of expensive for small FPGA).
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[23:41] <ricksl> So xark how do you code fpgas per se
[23:41] <SpeedEvil> You use VHDL or verilog, and then the vendors compiler.
[23:41] <SpeedEvil> And load in the bitstream.
[23:41] <SpeedEvil> Voila - configured FPGA
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[23:42] <SpeedEvil> Alas - the compilers are closed-soiurce, and the binary formats are also closed
[23:42] <ricksl> I mean what kind of syntax would you be coding in
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[23:45] <SpeedEvil> VHDL or verilog.
[23:45] <SpeedEvil> Two logic description languages.
[23:45] <SpeedEvil> Though there are also 'graphical' front ends.
[23:47] * sirclockalot (~sirclocka@unaffiliated/sirclockalot) Quit (Quit: sirclockalot)
[23:49] <Xark> ricksl: VHDL is derived from Ada (get GHDL if you want a free Linux version for simulation of FPGA code). Verilog is (semi-sort-of) derived from C (but ugly begin/end blocks). VHDL tends to be more powerful and higher level of abstraction (but a bit more verbose).
[23:50] * [SkG] (~sconde@unaffiliated/skg/x-897332) Quit (Quit: Saliendo)
[23:50] <Xark> ricksl: There are "free" tools from FPGA vendors that are needed to run on real hardware (and these are closed source, but usually have Linux versions).
[23:50] <JakeSays> Xark: ada?
[23:50] <Xark> JakeSays: Indeed.
[23:50] <JakeSays> interesting choice
[23:51] <Xark> JakeSays: It comes from DoD/ESA etc. I think http://en.wikipedia.org/wiki/VHDL
[23:51] <JakeSays> ah that explains ada then
[23:53] <Xark> JakeSays: I believe Verilog was from a specific vendor (and then became popular). It has less standardization and some portability issues VHDL doesn't have. Rule of thumb is US ASIC and other developers tend to use Verilog (except military) and everybody else uses VHDL.
[23:54] <JakeSays> the idea of describing hardware via a language makes my brain hurt
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[23:55] <Xark> JakeSays: It is a head-stretcher when "all your code" runs at the same time (unless you take pains to sequentialize it). :)
[23:55] <JakeSays> lol i bet
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[23:56] <SpeedEvil> And you really should try hard not to sequentialise it.
[23:56] <SpeedEvil> For obvious reasons.
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[23:56] <Xark> SpeedEvil: Well, you can
[23:56] <SpeedEvil> Sure.
[23:56] <Xark> ..can't do everything in a single clock cycle. :)
[23:57] <SpeedEvil> But you want to do multiple things a clock, on many parts of the chip.
[23:57] <JakeSays> sure you could - with 172 trillion gates :p
[23:57] <SpeedEvil> Otherwise you're kind of missing the point.
[23:57] <Xark> SpeedEvil: Sure. FPGAs big advantage is "fully parallel" work.
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