#raspberrypi IRC Log

Index

IRC Log for 2015-12-29

Timestamps are in GMT/BST.

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[0:18] <guto> hello all
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[0:29] <DMackey> Evening... quiet in here tonight.
[0:29] * DMackey heads back up to the kitchen
[0:36] * netsrot (~netsrot@c83-255-76-77.bredband.comhem.se) has joined #raspberrypi
[0:39] * Moonsilence (~Moonsilen@aftr-95-222-31-14.unity-media.net) Quit ()
[0:40] <sisel4> DMackey: Night here \o/
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[0:43] <AivarasK> How much time can resizing to 16GB take? I am running pi zero with no monitor so I can't see what's happening.
[0:45] * vOina (~username@2001:8a0:7e52:6501:b8d1:5c48:cabf:10ca) has joined #raspberrypi
[0:45] <vOina> hey guys
[0:45] <vOina> im just trying out pi for the first time
[0:45] <vOina> trying to install the NOOB version
[0:45] <vOina> im booting it now
[0:46] <vOina> but my monitor doesnt want to stay on
[0:46] <vOina> its always flickering
[0:46] <vOina> it goes black from time to time
[0:46] <vOina> but i can see it booted correctly
[0:46] <sisel4> you connected it by hdmi?
[0:46] <vOina> i can see the option menu to choose the OS
[0:46] <vOina> yes HDMI
[0:47] <trix`G> AivarasK: depending on your SD card it can take minutes to over an hour
[0:47] <sisel4> Have you tried changing hdmi cable?
[0:47] <trix`G> vOina: in /boot/config.txt you can uncomment the hdmi boost option, that should boost the signal
[0:47] <AivarasK> trix`G, it's Samsung's evo, ~7MB write/25MB read.
[0:47] <trix`G> or yeah check cable too
[0:47] <vOina> its not the hdmi cable as i tried the xbian version and it booted well
[0:49] <vOina> trix problem is, i cant find that config.txt, this is the first time im booting after copying the files over to the SD not sure if that file is there yet
[0:49] <trix`G> actually that information might not be accurate, I have never seem the NOOB edition
[0:49] <trix`G> seen*
[0:50] <vOina> just looked at the files and theres no config
[0:50] <vOina> maybe only after i choose the distro i want
[0:50] <AivarasK> trix`G, I think that after resize it did not rebooted or something. Removed power cord and it booted with all the space. Weird. :)
[0:50] <vOina> but i cant even do that because monitor doesnt stay on
[0:52] <vOina> ok found the solution
[0:52] <pksato> vOina: on boot, use key 1 or 2 to select hdmi mode.
[0:52] <vOina> yeah
[0:53] <vOina> thats what i just did
[0:53] <vOina> thanks
[0:54] * tomeff (~tomeff@ip-78-102-111-158.net.upcbroadband.cz) Quit (Quit: tomeff)
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[1:30] <kevireilly> t3chguy: have you by chance messed with the ethernet gadget setup of the pi zero? Curious if, once the pi is configured appropriately, if each computer needs to be configured as well or if it is just plug and play
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[1:44] <gbaman> kevireilly: In theory no
[1:45] <gbaman> As both with go on the 169.254.x.x range
[1:45] <gbaman> You just need to figure out what address your Pi has :)
[1:45] <gbaman> See the g_serial section - http://pi.gbaman.info/?p=699
[1:45] <kevireilly> ah so it might be possible to automate for various ranges if you determine the range?
[1:46] <kevireilly> and change the pi’s configuration accordingly
[1:46] <gbaman> Best bit is simply to set a fixed IP on the Pi
[1:46] <gbaman> But you could easily have either end running a DHCP server
[1:46] <gbaman> If you are using Mac or Windows/Linux with Bonjour, you can just use raspberrypi.local
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[1:49] * Dark-Show (Dark-Show@sydnns0115w-142162230011.dhcp-dynamic.FibreOp.ns.bellaliant.net) Quit (Ping timeout: 264 seconds)
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[2:03] * Berg (~chatzilla@pa114-72-167-238.pa.nsw.optusnet.com.au) Quit (Ping timeout: 272 seconds)
[2:06] <kevireilly> gbaman: I see what you’re saying. Thanks for the additional information. I was basically picturing an IoT type device that boots up and uses the computers existing network connection to connect to existing services (without configuration so various computers/networks can easily host it)
[2:07] <gbaman> Have a funny feeling that isn't possible without some configuration
[2:07] * trix`G (~trix`G@cpe-24-209-143-246.wi.res.rr.com) Quit (Quit: Lost terminal)
[2:07] * veinofstars (~veinofsta@cpe-74-71-49-29.nyc.res.rr.com) Quit (Quit: veinofstars)
[2:07] <gbaman> As a computer won't just happily share its web connection with a USB device
[2:07] <kevireilly> as it probably shouldn’t for security reasons hehe
[2:07] <gbaman> Yeah
[2:08] <gbaman> I have though easily used the Mac OS internet sharing option to share my web connection to my Pi Zero, works without any issues
[2:08] <gbaman> I believe Windows has a similar thing hidden somewhere
[2:08] <kevireilly> I think I might just keep focusing on a captive portal type wireless network config utility (or a pi with ethernet built in)
[2:09] <kevireilly> yeah that would be pretty neat. I like the easy serial access too. Waiting for that cable to come ;)
[2:11] * HtheB (~HtheB@Maemo/community/council/htheb) Quit ()
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[2:34] <giddles> hey can i leave my rpis alone @ holidays (working)
[2:34] <giddles> i have no real experience in running it over 42hr
[2:35] * wiiguy (~fake@unaffiliated/wiiguy) Quit (Quit: The Kirito is always right foundation. Grand reopening.)
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[2:35] <pigrit> I got one I use as dns server, it's been on for weeks since last reboot
[2:35] <giddles> ok
[2:36] <pigrit> I only reboot it because this area is prone to blackouts
[2:37] <giddles> hmm i run 8 rpi as suvelliance system
[2:38] <ozzzy> who are you spying on
[2:38] <pigrit> I've also got one with a picam that's always on, if it helps
[2:38] <giddles> my appartment
[2:38] <giddles> and garden
[2:38] <pigrit> uptime of forever except for the blackouts
[2:38] <giddles> 2 time someone broke in my home and steal my shit
[2:38] <pigrit> well you want the pi to shoot venomous darts too then
[2:39] <pigrit> just watching won't help
[2:39] <giddles> no ;D they should feel unspyed ;)
[2:39] <giddles> when rpi tapes em
[2:39] <pigrit> wouldn't it be funny if they nicked the pis
[2:39] <giddles> russian hotel :D
[2:39] * LikeVinyl (~pelado@unaffiliated/likevinyl) Quit (Quit: gnu offtopic #birras)
[2:39] * Beberg2 is now known as Beberg
[2:39] <giddles> well i can cut em off with two switches
[2:40] <giddles> so only nsa can radar me ;) i have no problem with
[2:40] * shantorn (~pi@71-222-45-38.ptld.qwest.net) has joined #raspberrypi
[2:40] <pigrit> nsa ? radar ? what are we talking about now °_°
[2:40] * knob (~knob@198.245.105.213) Quit (Quit: Leaving)
[2:40] <pigrit> but anyway, leave them all on as much as you like
[2:40] <giddles> hmk
[2:41] <pigrit> I barely even bother to turn off the one with retropie
[2:41] <giddles> when it overheats something starts to cut pi offline?
[2:42] <giddles> or must i config first a watchdog
[2:42] <giddles> so this means a whole weekend complining and RTFM...
[2:42] <pigrit> does it overheat ?
[2:42] <pigrit> never had an issue
[2:42] <giddles> in the case of "if"
[2:44] <giddles> picam gets nice warn i noticed
[2:44] <giddles> but thanks for that hint ;)
[2:44] <giddles> i use pinoir and (im ashamed) microsoft hd 3000 webcam ;D
[2:44] <pigrit> but if I can play psx games for 12 hours with all usbs, hdmi and speakers plugged in on a (mildly) overclocked pi in a box, you're probably ok with a cam
[2:45] <giddles> hehe
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[2:46] <sisel4> I have connected ms hd3k cam to old router with openwrt :D
[2:47] <sisel4> Some time ago i was recording from this cam using motion, but motion was running on other machine.
[2:47] <giddles> i also use motion ;)
[2:48] <giddles> quite freaky @ webcam ports if you use more than 3-4 cams
[2:48] * tmcmahon (~tmcmahon@d-230.lcom.net) has joined #raspberrypi
[2:48] <giddles> hehe i need a documentation ;)
[2:48] <sisel4> so, I was streaming mjpeg's from openwrt using mjpeg-streamer to cheapest vps in digitalocean
[2:48] <pigrit> I tried turning motion on but all I get is a bunch of 2 seconds long clips after the perp has already moved off screen P:
[2:49] * turtlehat (~turtlehat@5CEC365.rev.sefiber.dk) Quit (Quit: gone)
[2:49] <giddles> ja motion is a "drama queen"
[2:49] <giddles> but it works quite great
[2:49] <giddles> also the cpu load is great
[2:50] <giddles> and no timeshift watching
[2:50] <sisel4> pigrit: there is parameter to start recording xx seconds before motion is detected
[2:50] <giddles> combinds advantages a 400$ serurity system dont offers
[2:50] <pigrit> sisel4: I admit I just turned it on, didn't look into the parameters much :)
[2:50] <giddles> the conf isnt that horrible
[2:50] <sisel4> motion works, but configuration can take some time
[2:51] <giddles> an ircd with services is munch more worse
[2:51] <pigrit> also I really just install and use rpicam
[2:51] <giddles> motion is powerfully ;)
[2:51] <sisel4> Yup
[2:51] * jlf (~user@pdpc/supporter/active/jlf) Quit (Remote host closed the connection)
[2:51] <giddles> upload to google, execute commands
[2:51] <sisel4> mine was sending notification via pushbullet to my mobile when motion is detected :D
[2:52] <giddles> ow thats highclass
[2:52] <giddles> :)
[2:52] <giddles> i got only google drive and local rpiserver as ftp
[2:52] <giddles> :)
[2:52] <giddles> i need to contact my eggdrop with motion
[2:52] <giddles> but thats a project for the next yr
[2:53] <sisel4> My rpi working as thermometer xD
[2:53] <pigrit> I meant to figure out motion and send the clips to the NAS for storage, but eh, who can be arsed
[2:53] <sisel4> thats it: http://termometr.lysego.pl/ :D
[2:53] <giddles> cool
[2:54] <giddles> theres a good chip from bosh, which munch more parameters
[2:54] <sisel4> I know
[2:54] <sisel4> I made it for fun...
[2:54] <giddles> BMP085
[2:55] * ImNotLegit (ImNotLegit@41.215.7.188.rev.sfr.net) has joined #raspberrypi
[2:55] <sisel4> I want move this thermometer to other machine
[2:55] * spvensko (~spvensko@unaffiliated/spvensko) has joined #raspberrypi
[2:55] <sisel4> rpi2 is too much to read values from two sensors xD
[2:56] * HanSooloo (~HanSooloo@pool-108-48-120-141.washdc.fios.verizon.net) Quit (Quit: HanSooloo)
[2:56] <pigrit> my rpi2 was promoted to retropie
[2:56] <pigrit> after some poor attempts at voice recognition
[2:57] <pigrit> I have the impression we haven't actually moved on much at all in 20 years, in terms of voice
[2:57] <pigrit> it was shite then, it is shite now
[2:58] <sisel4> reading temperature from two sensors was just a pretext to buy raspberry pi xD
[2:58] <giddles> parallel temperatures? ;D
[2:58] <sisel4> no, inside and outside
[2:58] <giddles> i was sad, i saw an rpi con in a museum where kids used a "traffic"light led play shit
[2:58] <sisel4> but inside sensor is near window
[2:58] <giddles> i was like: man ppl i use it as samba server :P
[2:59] <giddles> theyve looked like im an alien
[2:59] * jwash (~blah@c-73-140-58-5.hsd1.wa.comcast.net) Quit (Ping timeout: 265 seconds)
[2:59] * fredp is now known as fredp2-away
[2:59] <pigrit> thing is, they're probably more right than you are :D
[2:59] <giddles> rpi seems to got an edu image
[3:00] <pigrit> sisel4: what do you do for the outside sensor, just use a very long wire ?
[3:00] <sisel4> pigrit: there are two ds18b20 senors
[3:00] <sisel4> connected to rpi
[3:01] <sisel4> but inside sensor is too close window -.-
[3:01] <pigrit> so, yes
[3:01] <pigrit> long wire
[3:02] <giddles> how do you save it from lightnings?
[3:02] <giddles> optocoppler?
[3:02] <pigrit> I am wondering, as an ignorant, how far you can put a sensor before the length of the wire makes any measurement moot
[3:02] <pigrit> and if it's even a factor
[3:03] <sisel4> pigrit: ds18b20 are a digital sensors
[3:03] <sisel4> they are using 1wire bus
[3:03] <pigrit> and....
[3:04] <pigrit> 1 wire bus meaning I suppose that they've only got power, ground and digital pins
[3:04] <sisel4> So, if wire is too long they just doesnt work
[3:04] <pigrit> right
[3:04] <pigrit> but how long is too long ?
[3:04] <pigrit> is there a rule of thumb
[3:05] <sisel4> I don't know, I have to look at 1wire bus specs...
[3:05] <pigrit> just wondering, as often, if there's some bits of info that everyone into this stuff already knows
[3:06] * jwash (~blah@c-73-140-58-5.hsd1.wa.comcast.net) has joined #raspberrypi
[3:06] <pigrit> like, you don't use wires longer than 10m, or you never plug anything in pin6 without first wearing a hat
[3:07] * derk0pf_ (~derk0pf@p508BA639.dip0.t-ipconnect.de) has joined #raspberrypi
[3:07] <pigrit> or, the ribbon connector has a bit that slides instead of forcing the cable in... P:
[3:08] <sisel4> ribbon connector... old floppy connectors fits into raspberry :D
[3:08] <pigrit> that one's from assembling the pi touchscreen earlier
[3:08] <pigrit> after forcing the cables in I read there's a slidy bit
[3:08] <pigrit> I could have used the info prior to assembly
[3:11] * derk0pf (~derk0pf@p508BA483.dip0.t-ipconnect.de) Quit (Ping timeout: 246 seconds)
[3:14] <sisel4> Bye, im going sleep :v
[3:14] * fredp2-away (~fredp@unaffiliated/fredp) Quit (Read error: Connection reset by peer)
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[5:15] <ziesemer> I'm looking to drive a loud piezo buzzer as an alarm from a Pi. I'd be interested in using the available hardware PWM from one of the GPIO pins. However, I'm concerned about not being able to provide enough voltage (5-20 V) or current for sufficient volume. Is there anything I should consider shy of a relay, separate oscillator, and an external power source?
[5:17] <exonormal> https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=20559
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[5:23] <ziesemer> exonormal: Reviewed - but I don't think I'm seeing anything here other than driving a piezo directly from a GPIO pin? Even for those that have had "successes", I'm afraid they were on the verge of damaging the Pi due to over-currents?
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[5:26] <exonormal> ok lemmie look more...
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[5:28] <ziesemer> Thanks!
[5:28] * Mr_Sheesh (~mr_s@unaffiliated/mr-sheesh/x-0757054) Quit (Ping timeout: 256 seconds)
[5:29] <ziesemer> (Been searching around online for over an hour, and am probably just not searching for the right things...)
[5:32] <CoJaBo> ziesemer: a transistor or something?
[5:34] <ziesemer> I've seen several references to such - but nothing with as much as a schematic for this purpose.
[5:35] <Ub3r> Couldnt you just use a Capacitor ?
[5:36] <Ub3r> Not sure if that would work with PWM
[5:36] <ziesemer> Probably. I'm better at the programming than the electrical engineering.
[5:36] <ziesemer> PWM was just a nice thought, to be able to drive multiple frequencies: Could generate different tones, etc.
[5:37] <ziesemer> Would probably be an overkill, but could I just take the PWM output and wire it to something like https://www.adafruit.com/products/1752 ?
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[5:38] <pigrit> I think you feed that actual audio
[5:38] <Ub3r> ziesemer; that's more for Speakers, you could use a media file as the alarm, there are different audio file tones, play which ever desired.. think ada(overprice) has speakers for like $4
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[5:39] <ziesemer> Right - could feed it actual audio. Or just use the PWM for simplicity. (What is audio, after all? :-)
[5:39] <ziesemer> I'd probably still use piezo speakers just to keep things small. Just looking for a loud alarm - don't need to be concerned with the "sound quality".
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[5:41] <ziesemer> In looking at that board again, I see that there are solder joints for both input and output - so that would seem to bit the bill for connecting a PWM input and a piezo output.
[5:41] <Ub3r> ziesemer; https://www.adafruit.com/products/1903
[5:41] <ziesemer> Nice!
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[5:43] <ziesemer> Looks like either would need its own power source, though?
[5:44] <ziesemer> No driving from the 5v rail?
[5:45] <Ub3r> Connect the 5v pin to the V5 header, and the 3v Pin to the BAT header
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[5:46] <ziesemer> Or maybe https://www.adafruit.com/products/1712 ?
[5:46] <Ub3r> just make sure you have a power source to the Pi of at leat 2amps
[5:46] <ziesemer> Yeah, 2.4A supply at current.
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[5:47] <Ub3r> ziesemer; that just a ton of capacitors on a circut board with some resistors to protect the pi
[5:47] <Ub3r> could make that for a few dollars on a breadboard or pcb
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[5:48] <Ub3r> but that apmplifier is a little over kill
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[5:49] <ziesemer> So it sounds like the PowerBoost (1712) is my best option.
[5:49] <Ub3r> and I don't know how well it would work with PWM... PWM works in small pulses.. it would have to charge the capasitors before they would release any power...
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[5:51] <pigrit> ... https://www.adafruit.com/products/1739 ? says "it's plenty loud"
[5:51] <Ub3r> ziesemer; why is it you are going with Buzzer+PWM
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[5:52] <Ub3r> and I can't image a Buzzer that would need more than 5v to wake you up
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[5:53] <ziesemer> Guess I could give it a try.
[5:53] <ziesemer> But...
[5:53] <ziesemer> I can't even give it 5v without "something" extra here.
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[5:53] <pigrit> have you already tried and verified that the most basic piezo setup does not wake you up
[5:53] <ziesemer> The GPIO output is only 3.3v.
[5:53] <exonormal> ziesemer: do you have a arduino uno?
[5:53] <ziesemer> No, but will need to give it a try.
[5:54] <ziesemer> exonormal: No, at least not yet - just a bunch of Pis.
[5:54] <exonormal> I see
[5:54] <exonormal> get a Uno and you can do anything with it while the pi gives it instructions
[5:54] <pigrit> I may be saying stupid things, but aren't there several 5v gpios
[5:54] <Ub3r> ziesemer; there is a 5v GPIO
[5:55] <Ub3r> there are 2 actually
[5:55] <Ub3r> pin 2 and 5
[5:55] <pigrit> yup
[5:55] <Ub3r> sorry 4
[5:56] <pigrit> just checked the breadboard, 2 it is
[5:57] <ziesemer> I believe you, but where I can reference this and any other such finds for myself? Per https://www.raspberrypi.org/documentation/usage/gpio-plus-and-raspi2/ , they are all 3.3v?
[5:57] <pigrit> in the second picture, the 2 red dots
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[5:58] <ziesemer> Those aren't GPIO, but solid power.
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[5:58] <Ub3r> They are all GPIO = General Purpose Input Output
[5:59] <Ub3r> ziesemer; http://pinout.xyz/ is a really good resource
[5:59] <ziesemer> They aren't even input/output - just raw power. Either way, I can't control them to turn anything on or off...
[6:00] <ziesemer> There'a also just not a lot of amps available on the 3.3v rail (for GPIO). So if there was a circuit I could use to amplify up to the 5v (or higher), that would be ideal.
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[6:01] <ziesemer> Otherwise, I guess what I know I can build is a 3.3v-driven relay. Put a piezo behind that with a built-in oscillator behind a 9v battery, if nothing else...
[6:01] <Ub3r> ziesemer; you really should research more electrical aspects also
[6:01] <Ub3r> You can connect a Transistor to the 5v output, then use the PWM to open close the Transistor gate
[6:01] <Ub3r> sending the 5v power to the buzzer
[6:02] <exonormal> http://uk.farnell.com/nxp/explore-nfc/add-on-board-nfc-for-raspberry/dp/2366201?ost=EXPLORE-NFC
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[6:02] <ziesemer> Ub3r: That's what I was hoping for. Just need to figure out which one to get, I guess.
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[6:03] <Ub3r> ziesemer; the transistor has 3 pins, and input, output, and a "gate"... PWM would open close the gate, allow power to pass through input to output
[6:03] <Ub3r> You can get a handful of Transistor for like $2 at radioshack/microcenter
[6:04] <ziesemer> Thanks for providing me that assurance. I'll see what I can find that matches the input/output specs.
[6:04] <pigrit> I've got a buzzer plugged in pin 26 and ground, if it is in any way relevant
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[6:05] <ziesemer> exonormal: Not sure that NFC link was correct / relevant here?
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[6:05] <ziesemer> pigrit: How loud? Anywhere near that of a door bell?
[6:06] <pigrit> probably not, but then it depends on how loud your doorbell is
[6:06] <exonormal> it worked for me..
[6:07] <exonormal> why, it won't open for you? ziesemer
[6:07] <Ub3r> exonormal; worked to do what? power a buzzer?
[6:07] <exonormal> yes
[6:08] <pigrit> you could set the pi up to lightly tase you in the morning
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[6:08] <ziesemer> I don't understand what NFC has to do with this?
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[6:09] <exonormal> ok then ignore me.. sorry
[6:09] <ziesemer> What about http://electronics.stackexchange.com/a/177533 ? Would get me up to 12v, at the understood loss of amps - which should be perfect for this?
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[6:10] <exonormal> yes you can do it that way..
[6:11] <exonormal> the 3.3V going into the mosfet will turn it on....
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[6:12] <ziesemer> So this is where I struggle, is in the spec details...
[6:12] <exonormal> basically you are using the mosfet as a "switch"
[6:12] <ziesemer> Right, I get the design.
[6:12] <ziesemer> IRLZ14PBF - that is compatible to be driven with a 3.3v signal?
[6:13] <exonormal> looks that way
[6:13] <exonormal> very low I
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[6:13] <ziesemer> Just from the Stack Exchange diagram? In looking at the spec sheet at http://www.vishay.com/docs/91325/sihlz14.pdf , isn't it expecting 5v?
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[6:17] <ziesemer> Yeah, that MOFSET won't work without 5v. :-)
[6:17] <exonormal> 5V at where?
[6:18] <exonormal> why not just use a transistor?
[6:18] <exonormal> it's fast enuf
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[6:19] <ziesemer> OK, will continue researching that approach.
[6:19] <exonormal> ok
[6:19] <exonormal> just keep it simple
[6:20] <ziesemer> Just from my original link, "a MOSFET is ideal because no current flows into its gate while it is on." Does this imply that a transistor would do otherwise?
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[6:23] <brianx> it does.
[6:23] <Mr_Sheesh> ziesemer - yes, transistors are current amplifiers so a 2n2222a (for example) you need to put 2mA into the base to pull 200mA down through the collector; vs. voltage amplifiers for FETs
[6:24] <CoJaBo> ..i suggested transistor an hour ago lol
[6:26] <Ub3r> CoJaBo; lol ;)
[6:26] <ziesemer> So as an amplifier, even without a source, there would still be current - and probalby a small amount of buzzing.
[6:31] <nyt> yes, transistors are current amplifiers
[6:31] <nyt> meant to quot ethat
[6:31] <nyt> some of them are
[6:31] <nyt> some are voltage amps
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[6:34] <Mr_Sheesh> FETs are voltage amps; BJTs are current amps
[6:35] <Ub3r> nyt; but the power should not pass from the collector to the emitter, unless power is applied to the base/gate ?
[6:36] <nyt> right
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[6:37] <exonormal> if you are worried about leakage in a transistor, use a relay.
[6:37] <nyt> wat
[6:38] <nyt> i missed most of the convo
[6:38] <nyt> coming in late
[6:38] <nyt> whos trying ot do what?
[6:38] <exonormal> lol
[6:38] <Ub3r> ziesemer was
[6:38] <exonormal> ziesemer is trying to use a mosfet to control a buzzer
[6:39] <nyt> controling the mosfet with what?
[6:39] <exonormal> pi
[6:39] <nyt> and what kind of buzzer?
[6:39] <exonormal> piezo
[6:39] <nyt> i meant specifically, what kind of voltage/current requirements
[6:40] <exonormal> 5V
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[6:40] <Ub3r> nyt; basically he was trying to find a way to supply more than 3.3v to a buzzer from the PWM gpio
[6:40] <Ub3r> apparently he wants it as loud as his door bell
[6:40] <Ub3r> but off the 5v pin it should be plenty loud
[6:40] <exonormal> he needs an ayuga horn
[6:41] <ziesemer> But I can't switch a 5v pin.
[6:41] <exonormal> right
[6:41] <Ub3r> ziesemer; dude, we just went over that
[6:41] <ziesemer> http://www.robertcudmore.org/blog/?p=181 / http://www.amazon.com/uxcell-BUZ91A-N-channel-MOSFET-Transistors/dp/B0087YK0CO
[6:41] <exonormal> lol
[6:41] <nyt> so get a 2n3904 for like $0.10
[6:41] <exonormal> right
[6:41] <ziesemer> That was 5 for $3, with free shipping.
[6:42] <Ub3r> nyt thats what I and CoJaBo said
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[6:42] <ziesemer> ... is an overkill, though - in terms of volts / amps.
[6:42] <exonormal> well then just use a micro switch on the door
[6:42] <nyt> or you know if youre using a pi
[6:42] <Ub3r> ziesemer; 5v Pin to 2n3904 transistor, pwm pin to base of transistor
[6:42] <nyt> you should have some uln2003s on hand
[6:43] <Ub3r> use PWM to open close the gate/base of the 2n3904
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[6:43] <Ub3r> I just wired it up using mine in like 5 secons
[6:43] <Ub3r> seconds*
[6:44] <Ub3r> playing Mario theme right now
[6:44] <nyt> no
[6:44] <nyt> 5v to the buzzer
[6:44] <nyt> buzzer to the transistor
[6:44] <nyt> at the collector
[6:44] <nyt> then gpio to the base
[6:44] <nyt> and emitter to ground
[6:44] <nyt> if using an npn
[6:44] <Ub3r> you gonna use the transistor as ground?
[6:44] <Ub3r> that would work too
[6:45] <nyt> load to the collector, emitter to ground
[6:45] <nyt> thats how npn works
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[6:45] <Ub3r> mine is working just fine with the transistor coming form the 5v
[6:46] <nyt> uh
[6:46] <nyt> npn
[6:46] <nyt> you need voltage to flow from the base to the emitter
[6:46] <nyt> to turn it on
[6:46] <RaMcHiP-Mobile> Hello guys! I am trying to configure my wifi via ssh and ethernet. I have installed the drivers for my USB wifi. Its is now listed in lsusb and ifconfig. When I edit my network interfaces with the SSID and PSK it wont connect and when I try to bring down the wifi I get an error that I have a misplaced option on the same line that I have wpa-ssid. Here is the link to my /etc/network/interfaces http://pastebin.com/ZbhJHL
[6:46] <RaMcHiP-Mobile> h9
[6:46] <RaMcHiP-Mobile> http://pastebin.com/ZbhJHLh9
[6:47] <Ub3r> maybe I grabed the pnp instead
[6:47] <exonormal> lol
[6:47] <nyt> pnp turns on when voltage from the emitter flows to the base
[6:47] * jektrix (~jektrix@125-238-9-115.jetstream.xtra.co.nz) Quit (Quit: My Mac has gone to sleep. ZZZzzz…)
[6:47] <nyt> then it allows emitter -> collector flow
[6:47] <nyt> load is placed between the collector and ground
[6:49] <Ub3r> nyt; my bad, you are right. not sure what I was thinking
[6:49] <ziesemer> Here we go: Supporting the NPN approach: http://elinux.org/RPi_GPIO_Interface_Circuits#Using_an_NPN_transistor
[6:49] * jlf (~user@pdpc/supporter/active/jlf) has joined #raspberrypi
[6:49] <ziesemer> First diagram I've seen complete with the specs and all: Including the use of a 1k resistor.
[6:50] <nyt> yes, FET say way as npn
[6:50] <nyt> fet is using 100k
[6:50] * hepukt4e (~hep@91.198.140.16) Quit (Remote host closed the connection)
[6:50] <nyt> but its a safety if the pin is set to input
[6:50] <RaMcHiP-Mobile> PS wlan0 scans as well
[6:51] <nyt> otherwise, npn works fine as pictured
[6:51] <nyt> i'd use a higher value resistor
[6:51] <ziesemer> How high? 100k?
[6:51] <nyt> RaMcHiP-Mobile, pastebin your errors
[6:52] <exonormal> trial/error, ziesemer
[6:52] <nyt> ziesemer, like 4.7k i think
[6:52] <ziesemer> k, will give it a try, thanks.
[6:52] <ziesemer> RaMcHiP-Mobile: Your previous pastepin is also no longer accessible (/etc/interfaces).
[6:52] <nyt> also i dont think you need quotes on the password /s sid
[6:52] <ziesemer> (nvm, see the corrected link.)
[6:53] <RaMcHiP-Mobile> http://pastebin.com/k03wQqEy
[6:53] <nyt> also, iface default inet dhcp, not sure what youre doing
[6:53] <RaMcHiP-Mobile> lemme try that
[6:53] <nyt> yeah your interfaces arent setup right to specify ssid there
[6:53] <ziesemer> I think your wpa-* lines need to go below the iface line.
[6:54] <nyt> yes
[6:54] <nyt> like this:
[6:54] <ziesemer> That's why you're getting the "misplaced option" errors.
[6:54] <nyt> https://wiki.debian.org/WiFi/HowToUse#WPA-PSK_and_WPA2-PSK
[6:54] <nyt> see #4
[6:54] * j12t (~j12t@c-107-3-142-14.hsd1.ca.comcast.net) has joined #raspberrypi
[6:54] <RaMcHiP-Mobile> TY
[6:55] <ziesemer> All who discussed the buzzer with me: Thanks. Just don't know what I'm going to do with 100 of the 2N3904's for $2.22. :-)
[6:56] <exonormal> sell them for $200 each
[6:56] <nyt> ziesemer
[6:56] <pigrit> make a working ironman suit
[6:56] * duckpuppy (~patrickai@h228.208.132.40.static.ip.windstream.net) has joined #raspberrypi
[6:56] <nyt> if youre going to be doing any other gpio stuff with pi
[6:57] <nyt> id suggest getting some uln2003
[6:57] <nyt> it's basically 7 transistors in an nic package
[6:57] <nyt> s/nic/ic
[6:57] <RaMcHiP-Mobile> New interfaces http://pastebin.com/1GQZZqP1 when I do ifdown wlan0 I now get this error "ifdown: interface wlan0 not configured
[6:57] <RaMcHiP-Mobile> "
[6:58] <nyt> so whats it say when you ifup wlan0
[6:58] <RaMcHiP-Mobile> LOL
[6:58] <RaMcHiP-Mobile> Seems to work!
[6:59] <nyt> yeah ifdown was complaining because it wasn't brought up
[6:59] <RaMcHiP-Mobile> LOL *hits head on wall*
[6:59] <RaMcHiP-Mobile> I have been playing with this for like 2 hours
[6:59] <RaMcHiP-Mobile> Thank you!
[6:59] * j12t (~j12t@c-107-3-142-14.hsd1.ca.comcast.net) Quit (Ping timeout: 265 seconds)
[6:59] <RaMcHiP-Mobile> Very excited to get octoprint up for my printer
[6:59] <nyt> good thing i accidentally clicked on this tab ;)
[6:59] <RaMcHiP-Mobile> ;)
[6:59] <RaMcHiP-Mobile> nyt++
[6:59] <RaMcHiP-Mobile> You guys get karma here? :D
[7:00] <nyt> dont think so haha, nfc
[7:00] * Aceed (482a946e@gateway/web/freenode/ip.72.42.148.110) has joined #raspberrypi
[7:00] <RaMcHiP-Mobile> Now lets see if I can reboot
[7:00] <RaMcHiP-Mobile> if it works after reboot I will be beyond happy:D
[7:00] <Aceed> Alright, I'm pulling the trigger on an rpi on Amazon. Is there a "What's the best rpi package on Amazon" FAQ I'm missing?
[7:02] * cssko_ (~cssko@cpe-24-209-193-122.cinci.res.rr.com) Quit (Quit: Leaving)
[7:02] <nyt> why you need a package?
[7:02] <nyt> one of these days ill be converting my bbb libraries to pi ;)
[7:02] <Aceed> Well, doesn't necessarily have to be a package you pay too much for, just a concise list of what's best for X feature
[7:02] * duckpuppy (~patrickai@h228.208.132.40.static.ip.windstream.net) Quit (Ping timeout: 256 seconds)
[7:03] <exonormal> beaglebone black?
[7:03] <Aceed> Like SD card, camera, add ons, etc
[7:03] <Aceed> Looking to do a media server for HD video on a projector and probably make a magic mirror for the wife :p
[7:04] <uriah> Aceed: what country are you in?
[7:04] <Aceed> Amurrika
[7:04] <exonormal> http://www.amazon.com/CanaKit-Raspberry-Complete-Starter-9-Items/dp/B008XVAVAW/ref=sr_1_1?s=pc&ie=UTF8&qid=1451369061&sr=1-1-spons&keywords=raspberry+pi&psc=1
[7:05] <RaMcHiP-Mobile> Hmmmm, I see it on my network and the light is on but now I cannot access through SSH hmmmm
[7:05] <exonormal> that's the best deal.... ^^^^^^^^^^^
[7:05] <uriah> Aceed: have you considered buying from adafruit? doesn't look like they mark official rpi products by much
[7:05] <RaMcHiP-Mobile> I lied, wrong IP :D
[7:06] <RaMcHiP-Mobile> ITS ALIVE!!! Thank you nyt!!!
[7:06] <Aceed> I was just looking at the canakit now
[7:06] <uriah> ok
[7:06] <uriah> Aceed: what is it exactly that you need for your project?
[7:06] <uriah> cause that will come into play
[7:08] <Aceed> I'll be getting two, one for the XBMC project (pretty much just need the board), and another for the magic mirror. For the mirror, I was thinking a camera for motion sensing, mic for audio control, and bluetooth for piping audio from a phone
[7:09] <Aceed> I'm experienced with the arduino platform, but I haven't had the wifely approval to justify the rpi costs...until now ;)
[7:10] <exonormal> cool.. I have 6 pi's one BBB, and two Unos
[7:10] <nyt> ugh just lost internet and got back
[7:10] <nyt> exanormal yeah bbb
[7:11] <exonormal> lol
[7:11] <exonormal> ver 2
[7:11] <exonormal> Angstrom OS
[7:11] * duckpuppy (~patrickai@h228.208.132.40.static.ip.windstream.net) has joined #raspberrypi
[7:11] <nyt> Aceed, if you have prime, you can generally piece together the parts cheaper than kit
[7:11] <nyt> and get higher quality
[7:12] <nyt> http://www.amazon.com/Panda-300Mbps-Wireless-USB-Adapter/dp/B00EQT0YK2/ this dongle works real nice with pi, good speeds
[7:12] <nyt> and 'just works'
[7:12] <nyt> lots of the kit ones are cheap/flakey
[7:12] <Aceed> That's what I'm working on now, piecing together the best components instead of going with the prebuilt kits
[7:13] <Aceed> Thanks nyt, I'll throw that one in the cart
[7:13] <exonormal> I love the "Ourlink" ones.. very powerful
[7:15] <Aceed> Any other individual component recommendations?
[7:15] <nyt> there were some good pses up there cheap last i checked
[7:15] <nyt> let me see if they still are
[7:16] <nyt> there were d-link 5v 2.5a adapters via prime at some point for cheap
[7:16] <nyt> not seeing prime now
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[7:17] * Sisco (Sisco@unaffiliated/sisco) Quit (Ping timeout: 265 seconds)
[7:18] <Aceed> What about SD card/wifi?
[7:18] <Aceed> err that Panda one is wifi, nm
[7:19] * linkedinyou (~linkediny@unaffiliated/linkedinyou) Quit (Quit: linkedinyou)
[7:19] <nyt> sd? depends what size you want?
[7:19] <nyt> http://www.amazon.com/gp/product/B00IVPU786
[7:19] <nyt> those have decent speed w/ the pi
[7:19] <Aceed> Those Samsung EVOs are the way to go?
[7:19] <nyt> so do these:
[7:19] <nyt> http://www.amazon.com/gp/product/B013CP5F90
[7:19] <nyt> but more expensive
[7:20] <nyt> limitation is with the pi hardware
[7:20] <nyt> so either should work fine iirc
[7:20] <nyt> i dont recall much difference between the two
[7:20] * Encapsulation (~Astoundin@unaffiliated/encapsulation) has joined #raspberrypi
[7:20] <Aceed> Yeah, I was wondering if I could splurge on a faster SD card and get better performance, or at what point I'd get diminishing returns
[7:21] <exonormal> https://www.kickstarter.com/projects/139108638/lattepanda-a-45-win10-computer-for-everything?ref=category
[7:21] <nyt> i'd just get the evo, cheap enough
[7:21] <nyt> and fast enough
[7:22] <nyt> lol why would you want a full windows 10 computer with an arduino
[7:22] <Aceed> Yeah...I don't get that. Maybe just ease of use
[7:22] <Aceed> People are scared of python
[7:23] <Aceed> Also, sponsored by MS for cheap/free OS
[7:23] <nyt> you can get an arduino for $3 off fleabay and plug it in via usb to anything :/
[7:24] <Aceed> Grabbed two of those Samsung EVOs @ 64Gb
[7:24] <exonormal> lol... just hinting
[7:25] <exonormal> I think the pi can only handle up to 32gb
[7:25] <nyt> aceed lol do you really need that much space?
[7:27] * duckpuppy (~patrickai@h228.208.132.40.static.ip.windstream.net) Quit (Ping timeout: 276 seconds)
[7:27] <Aceed> Honestly, I'm going to swap out our 32Gb SD cards in our Galaxy phones, lol
[7:27] <exonormal> http://www.adapteva.com
[7:28] <Aceed> Too bad rpi doesn't have plans for a usb3.0 upgrade
[7:28] <Aceed> Or some other upgrade
[7:29] <exonormal> give it time
[7:29] <nyt> have you seen the pine64?
[7:29] <exonormal> no
[7:29] <sedition> the pine looks awesome
[7:29] <exonormal> link?
[7:29] <nyt> https://www.kickstarter.com/projects/pine64/pine-a64-first-15-64-bit-single-board-super-comput
[7:29] <exonormal> ty
[7:30] <NedScott> meh, allwinner
[7:30] <Aceed> Now here's a pretty girl we hired to sell it
[7:31] * shantorn (~shantorn@71-222-45-38.ptld.qwest.net) Quit (Quit: Konversation terminated!)
[7:31] <nyt> lol i hate videos
[7:31] <nyt> i dont watch
[7:31] <exonormal> sweet
[7:32] <Aceed> Oh snap, gigabit ethernet on that pine64+
[7:32] * linkedinyou (~linkediny@unaffiliated/linkedinyou) has joined #raspberrypi
[7:33] <Aceed> That would be a great board for my media server...10/100 is killing my HD streaming
[7:34] <exonormal> lol
[7:34] <exonormal> buy them all
[7:34] * Encapsulation (~Astoundin@unaffiliated/encapsulation) Quit (Ping timeout: 276 seconds)
[7:37] <Aceed> Dang that's really cool...I'm gonna have the grab the March kit
[7:38] <exonormal> lol
[7:38] <exonormal> have fun
[7:39] <exonormal> http://www.amazon.com/Adapteva-Parallella-16-Micro-Server/dp/B0091UDG88/ref=sr_1_2?ie=UTF8&qid=1451371035&sr=8-2&keywords=adapteva
[7:40] * govg (~govg@unaffiliated/govg) Quit (Ping timeout: 250 seconds)
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[7:40] <swift110-phone> Hey
[7:41] <exonormal> ho
[7:41] * govg (~govg@unaffiliated/govg) has joined #raspberrypi
[7:42] <swift110-phone> How r u
[7:42] * Berg (~chatzilla@pa122-110-86-216.pa.nsw.optusnet.com.au) has joined #raspberrypi
[7:42] <exonormal> ok.. you missed a lot of good activity here
[7:43] * DMackey (~n2dvm@cpe-67-246-122-255.twcny.res.rr.com) Quit (Ping timeout: 245 seconds)
[7:46] <phb2k1> Does someone think the Pine64+ can emulate an N64?
[7:46] <Aceed> I wouldn't doubt it, unless there were some specific hardware reason it couldn't
[7:47] <pigrit> I thought the N64 emulation still sucked even on desktop pcs ?
[7:49] <phb2k1> on my macbook air it plays quiet good
[7:49] <phb2k1> I was asking for the pine because I thought the problem was the emulation of a x64 CPU from a x86 or ARM cpu like the raspi
[7:50] * snowkidind (~snowkidin@pool-96-255-209-107.washdc.fios.verizon.net) Quit (Quit: snowkidind)
[7:50] <pigrit> well that's the first time I hear it, maybe I should try again on my pc
[7:50] <pigrit> I mean first time I hear "mine runs ok"
[7:50] <phb2k1> I tested Shadow Man on my MBA
[7:51] <pigrit> which emu ?
[7:51] <pigrit> lator ?
[7:52] <nyt> apparently need a pi2
[7:52] <nyt> at max oc
[7:52] <nyt> to run n64 emu
[7:52] <nyt> pine64+ more powerful than that
[7:52] <nyt> and clocked faster
[7:52] <nyt> so i assume its hould play it without issue
[7:53] <pigrit> my understanding is it was not a matter of computational power
[7:53] <pigrit> but now I'll give super mario rpg another go
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[7:56] * govg (~govg@unaffiliated/govg) Quit (Ping timeout: 240 seconds)
[7:56] <pigrit> altho "run n64 emu" and play goldeneye nicely are not necessarily the same thing
[7:57] * exonormal (~mini-acer@cpe-67-249-185-152.twcny.res.rr.com) Quit (Quit: Konversation terminated!)
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[7:59] <phb2k1> on MBA mupen64plus (using OpenEmu)
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[8:00] <pigrit> phb2k1: have you already tried (and failed) on a pi ?
[8:01] <phb2k1> pigrit: Don't remember when the last try was. As far as I know Mario 64 plays quiet well on Pi2
[8:01] <pigrit> well we'll see right now
[8:02] <pigrit> it's a me!
[8:02] <c0ma> is really raspbian the best disdtro for raspberry pi2?
[8:02] <nyt> yes
[8:03] * JakeSays (~jake@chat.thatswhatjakesaid.com) Quit (Ping timeout: 246 seconds)
[8:03] <c0ma> no other options to consider? really?
[8:03] <pigrit> phb2k1: I take it all back, mario 64 on retropie (pi2) works a treat
[8:04] <phb2k1> I use RetroPie (based on raspbian)
[8:04] <pigrit> only slightly overclocked
[8:04] <pigrit> like the first oc option
[8:04] <pigrit> the one that says not to worry about overheating
[8:04] <mlelstv> "the best" is of course very subjective. But Raspbian probably suits most people.
[8:04] <phb2k1> pigrit: Yup but Mario 64 was quiet the first game on the n64
[8:04] <phb2k1> there is for example lakka (www.lakka.tv) which is based on OpenElec
[8:04] <c0ma> one question, about retropie: does this come with all the games? is this included or just the emulators/etc ?
[8:05] <pigrit> and I got confused with super mario rpg which is in fact on snes
[8:05] <pigrit> c0ma no games of course
[8:05] <c0ma> yeah I know what you mean. well I want something nerdy... I was a linux user back some years ago. used slackware.
[8:05] <c0ma> so no problem with that
[8:05] * JakeSays (~jake@chat.thatswhatjakesaid.com) has joined #raspberrypi
[8:05] <c0ma> thought it was no games, just wanted to make sure. thx.
[8:05] <phb2k1> c0ma, you have to provide your own dumps of games
[8:05] <nyt> i need to figure out something to do with my pi zero
[8:06] <nyt> aside be like omg look how small
[8:06] <pigrit> ikr
[8:06] <phb2k1> I NEED a pi zero :)
[8:06] <pigrit> I am proud that I manage to make myself not care
[8:06] <phb2k1> is someone here with knowledge about c programming and threads?
[8:06] <pigrit> I may like the idea of one, but I really don't need one
[8:07] * jlf (~user@pdpc/supporter/active/jlf) Quit (Remote host closed the connection)
[8:07] <c0ma> yeah. lots of options and projects to do with these... :)
[8:07] * kivutar (~kivutar@95.130.13.198) has joined #raspberrypi
[8:08] <c0ma> some projects are... really expensive though
[8:08] * jlf (~user@pdpc/supporter/active/jlf) has joined #raspberrypi
[8:08] <c0ma> checking out http://www.lakka.tv/ !
[8:09] * mixfix41 (~awkwardpl@unaffiliated/mixfix41) Quit (Quit: WeeChat 1.3)
[8:12] <mlelstv> phb, don't ask meta-questions :)
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[8:19] <AiGreek> 'Morning, guys
[8:19] * Sisco_ (Sisco@unaffiliated/sisco/x-4156292) Quit (Ping timeout: 265 seconds)
[8:20] <nyt> phb2k1, what you need to know?
[8:20] <nyt> im old enough to have been writing c for some decades now =[
[8:20] <phb2k1> nyt, I got the mistake
[8:20] <phb2k1> u know wiringPi?
[8:21] <phb2k1> and RCSwitch library for Arduino?
[8:22] * speeddragon (~speeddrag@193.137.28.200) Quit (Ping timeout: 246 seconds)
[8:24] <nyt> not rcswitch
[8:25] <phb2k1> ok, the "problem" is, if I use interrupts using wiringPi the CPU usage goes to 30%
[8:28] * esas (~esas@unaffiliated/esas) Quit (Ping timeout: 246 seconds)
[8:28] <Ub3r> Ha, I turned my Pi into a LED control for my PC lighting; Now if I could just find a PiZero for sale, so I could reduce the space usage inside my PC case
[8:30] <mlelstv> you could use the Pi as the desktop and make the PC control the lighting instead.
[8:31] <Ub3r> Huh?
[8:31] <Ub3r> not sure I follow
[8:31] <mlelstv> just a suggestion :)
[8:32] <Ub3r> Not sure if that was suppose to be sarcastic or you was being legit
[8:34] <mlelstv> not sarcastic, but the idea of using one computer to control lamps for another computer feels a bit strange to me
[8:34] * oldtopman (~oldtopman@unaffiliated/oldtopman) Quit (Quit: *pouf*)
[8:36] <phb2k1> better use a microcontroller I think he wanted to say ;)
[8:39] * pppingme (~pppingme@unaffiliated/pppingme) Quit (Ping timeout: 276 seconds)
[8:40] <swift110-phone> Hmm
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[9:52] <pigrit> AiGreek: the preciousssss was delivered a couple of hours after my last bit of complaining
[9:52] <pigrit> \o/
[9:52] <AiGreek> yeaaah
[9:53] <AiGreek> it's a good screen ?
[9:53] * vdamewood (~vdamewood@unaffiliated/vdamewood) has joined #raspberrypi
[9:53] <pigrit> for what I could see, I turned it on once
[9:53] <pigrit> I wish I hadn't spent the last 48 hours in bed puking
[9:54] <pigrit> without a support it's unwieldy though
[9:54] <AiGreek> it's ... (how to say that..) responsive ?
[9:55] <pigrit> seems to, of course it sucks in the desktop - the icons are too small
[9:57] * normalra (~normal@unaffiliated/normalra) has joined #raspberrypi
[9:57] <pigrit> it's so pwetty :3
[9:57] <AiGreek> pwetty but small :/
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[10:01] <pigrit> as long as touch works properly, with the right GUI it will be invincible
[10:02] <pigrit> root
[10:02] <pigrit> trolol
[10:02] <pigrit> wrong keyboard
[10:03] <danieli> did you just nearly type your root pass here pigrit
[10:03] <pigrit> it's a good thing I didn't, it's astoundingly vulgar
[10:04] <danieli> the default password for my email system (new users) is pisspotato in another lanugage
[10:04] <pigrit> now I've removed overscan, I can confirm the screen is properly calibrated
[10:04] * AiGreek (~AiGreek@was67-1-88-181-72-119.fbx.proxad.net) Quit (Ping timeout: 240 seconds)
[10:05] <pigrit> now... pygame ? kivy ? D:
[10:05] <pigrit> anyone got a clue re: fullscreen touch GUIs ?
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[10:17] <AiGreek> okey so my Mac just decides to shutdown ><
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[10:25] <phb2k1> can the pi do software serial?
[10:28] <Xark> phb2k1: I don't believe s (timing requirements would need to be too tight - at least without some kernel module).
[10:28] <Xark> so*
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[10:29] <ali1234> http://paste.ubuntu.com/14257508/
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[10:55] <phb2k1> Ok thx, whats the best way to send some simple (maximum 16 chars) string from an attiny to the raspberrypi? only this way not from RPi to attiny
[10:56] <phb2k1> shall I use the UART?
[10:58] <Encrypt> phb2k1, I2C \o/
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[10:59] <phb2k1> can I use other ports than UART for I2C on the Raspi?
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[11:01] <Xark> phb2k1: Perhaps SPI?
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[11:05] <phb2k1> Xark: can I setup SPI on any GPIO pin?
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[11:07] <Xark> phb2k1: You can bit-bang it (not speed sensitive). However, HW SPI is only certain pins.
[11:08] <phb2k1> ok and I need 4 pins :(
[11:08] <phb2k1> I'll have a look at I2C
[11:08] <Xark> phb2k1: Only SCK, MOSI, MISO (and GND).
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[11:08] <Xark> phb2k1: (and maybe CS if multiple SPI devices)
[11:09] <Xark> phb2k1: I2C could work too.
[11:09] <phb2k1> Xark: yeah but the slave is a attiny which has limited pins
[11:09] <Xark> phb2k1: Do you need bi-directional coms?
[11:10] <phb2k1> Xark: no uni-directional
[11:10] <phb2k1> only Attiny -> Raspberry
[11:11] <phb2k1> no ACK, nothing to respond to the tiny
[11:11] <Xark> I think this means you can omit MOSI line for SPI.
[11:11] <phb2k1> so just GND and MISO
[11:12] <Xark> and SCK
[11:12] <phb2k1> oh yeah
[11:13] <phb2k1> ok that sounds good:https://www.raspberrypi.org/documentation/hardware/raspberrypi/spi/README.md I can use the wiringPi Library (which I've included already for my project)
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[12:12] <gordonDrogon> using wiringPi is always nice ...
[12:13] <gordonDrogon> although the author is sometimes a little crotchety :-)
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[12:20] <TinkerTiger> Hmmm, like me!
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[12:26] <t3chguy> lol gordonDrogon
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[12:58] <asdd> What are some commercial products made with raspberry pi today?
[13:00] <t3chguy> asdd: I'm not sure why would anyone use an RPi in a commercial product
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[13:00] <t3chguy> the SoC on the RPi houses most of the functionality, so why not just put that into the Commercial PCB?
[13:00] <t3chguy> or something similar, ASICs are often seen used
[13:00] <Encrypt> asdd, Because it is just great :]
[13:01] <asdd> t3chguy: can save on PCB design, material purchase headache. Just write the software, no need to care about hardware, manufacturing concerns
[13:01] <gordonDrogon> the Compute Module was intended for that, but I suspect the Pi Zero will suffice for the most part.
[13:02] <Encrypt> gordonDrogon, There is no connectivity :S
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[13:02] <asdd> t3chguy: Rpi uses broadcom CPU which is very unfriendly to small companies. Broadcom is stuck-up company based on my experience. Broadcom looks down on small frys
[13:02] <gordonDrogon> you don't need anything from broadcom to use a Pi based module in a commercial device.
[13:03] <gordonDrogon> and big commercial companies do talk nicely to each other anyway.
[13:04] <gordonDrogon> there are currently some big advertising boards with HDMI displays based on the Pi.
[13:04] <asdd> gordonDrogon: if u're big, broadcom talks to u. if u're small, u better use TI. if one encounters problem with the CPU, one needs to seek help from broadcom. that can be a problem for small companies
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[13:05] <asdd> gordonDrogon: compute module looks like a good idea. do u think it is cost-competitive?
[13:05] <t3chguy> the Zero is most cost-effective lol
[13:05] <t3chguy> £4
[13:05] <gordonDrogon> I don't think the CM is terribly cost effective, but it might be for some people.
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[13:05] <gordonDrogon> thats why I think the zero is better - but the CM has more GPIO avalable to it.
[13:06] <gordonDrogon> and e.g. 2 camera interfaces..
[13:06] <gordonDrogon> the whole broadcom thing is moot for the Pi anyway - you're not dealing with Broadcom, you're dealing with the Pi Foundation.
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[13:07] <asdd> gordonDrogon: i see. so, one can directly seek help from Pi Foundation. didn't know that. I thought cpu-specific stuff will be referred to Broadcom. THanks. This is a great relief!! I have had enough putting up with those arrrogant folks
[13:07] <pigrit> this one ?? https://www.raspberrypi.org/wp-content/uploads/2014/04/Untitled.png where are the cameras °_°
[13:08] <pigrit> or rather, where do the cameras go
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[13:09] <asdd> Will Rpi kill some hardware engineers' jobs? With Rpi, software skills alone will be enough
[13:09] <nid0> no.
[13:09] <gordonDrogon> asdd, well - I really don't know if you're going to get any more help than what's already published - you want to run Linux - fine, run anything else - probably on your own ...
[13:10] <asdd> gordonDrogon: there's no proper datasheet on the broadcom chip. Different from TI chips
[13:11] <asdd> nid0: with Rpi, i do not need to hire PCB designers or engineer to design schematic. Just get a proper casing and i can start selling
[13:11] <gordonDrogon> you know what - I've heard all this before.
[13:11] <asdd> gordonDrogon: I think it is a valid concern. No?
[13:11] <gordonDrogon> and while you are right - that's the way it seems to be, yet millions of people stilll buy them.
[13:12] <nid0> if you're a small enough business for the pi to be a viable option, you didn't have your own in-house hardware design to begin with.
[13:12] <asdd> i wonder ... will software skills be more valuable in future? will pay go down for hardware folks in the near future?
[13:12] <gordonDrogon> asdd, it doesn't need to be a valid concern. If you want a small system running Linux with some usable GPIO then the Pi will "just work" with no involvement from the actual chip manufacturers required at all.
[13:13] <gordonDrogon> if you want the nitty gritty of how the gpu works, then perhaps the Pi (or Broadcom) isn't the device for you.
[13:13] <asdd> gordonDrogon: i agree. most of the time, one doesn't even need to know the cpu is broadcom
[13:14] <asdd> gordonDrogon: but if u're running a business that uses broadcom, u tend to worry because of the zero support u gonna get if u're not big enough to be worth their attention.
[13:14] <gordonDrogon> personally, I've given up caring. The only thing makers of commercial kit will probably be most concerend about is supply of what's now a rather old part - however the Pi Zero has confirmed that they're still making that part - in large quantities too.
[13:15] <gordonDrogon> I understand the foundation have given commitments to volume manufacture - and even Farnell will make you a custome designed Pi solution - min. quantity if 5000 units I think.
[13:15] <gordonDrogon> want to make 5000 gambling machine with HDMI displays - the Pi's the unit to do it on ...
[13:16] <gordonDrogon> I mean - a Pi zero - costs nothing compared to the wood needed to make the cabinet...
[13:16] <gordonDrogon> or even the big vandal proof buttons...
[13:16] <asdd> gordonDrogon: cheaper than making our own boards for 5000 machines with HDMI displays?
[13:17] <gordonDrogon> I'd be surprised if there was a self-contained board that could display hdmi video and graphics and have the GPIO needed to run a gambling machine that was cheaper than a Zero.
[13:17] <asdd> gordonDrogon: will hardware engineers' salaries be depressed by boards like Pi Zero? who would need hardware folks to design new boards with Pi Zero?
[13:17] <nid0> the same people who have custom boards built now
[13:17] <gordonDrogon> I make a good enough living integrating Pi (& other small systems).
[13:17] <nid0> those people aren't building 5000 boards though, they're building 50000 or 500000
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[13:18] <asdd> gordonDrogon: ahh ... one can make a good living with Pi accessories
[13:18] <gordonDrogon> and software.
[13:18] <gordonDrogon> so - what are you getting at. What do you do, asdd ?
[13:19] <asdd> gordonDrogon: i write firmware.
[13:19] <asdd> gordonDrogon: can interpret schematic but don't know how to do pcb layout. Rpi is good for people like me.
[13:19] <gordonDrogon> ok, neat.
[13:20] <asdd> gordonDrogon: but i see hardware engineers getting fewer and software engineers getting more. Wonder if hardware might be a good niche in future
[13:20] <asdd> gordonDrogon: more people seem to shun hardware. do u get the same feeling?
[13:21] <gordonDrogon> not really. we still need cpu designers.
[13:21] <gordonDrogon> still need people who can put those cpus on boards.
[13:21] <gordonDrogon> and people to write the software for them.
[13:22] <asdd> gordonDrogon: digital electronics getting simpler by the day. i think analog and RF designers can still command higher pay. I worry for the digital designers., excluding those doing high-speed digital stuff
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[13:26] <gordonDrogon> just join the dots..
[13:27] <gordonDrogon> so learn the high speed stuff - I worked with some folks recently who were doing 60Ghz modems ... Now they're up to 78Ghz I think.. Quite cool stuff.
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[13:29] <asdd> gordonDrogon: 60ghz??! the testing equipment must be darn expensive
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[13:31] <gordonDrogon> reassuringly ..
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[13:32] <gordonDrogon> or ... have another, different job. Like me. beep beep - kitchen timers going - baking some bread :)
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[13:34] <sgo11> hi, how can I use my USB audio card? It's recognized properly in alsamixer and aplay -l. but it never works. I tried all the methods I can find in google. none of them works.
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[13:36] <Xark> sgo11: Did you try raspi-config audio settings?
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[13:36] <sgo11> Xark, I never try that. should I change all my modification back before running this tool? thanks.
[13:37] <Xark> sgo11: Not sure? I guess try it without first.
[13:38] <Xark> sgo11: Hmm, no, I am incorrect. I think that is just for HDMI vs headphone audio (not USB).
[13:38] <sgo11> Xark, ok. yeah.
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[13:39] <sgo11> my current setup: http://paste.ubuntu.com/14258438/
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[13:52] <sgo11> I think my problem might be there is also a usb midi keyboard which is using snd-usb-audio somehow.
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[14:00] <sgo11> I can never make usb audio card to be 0 when I plug in midi keyboard. But I have to use my midi keyboard.
[14:00] <ali1234> (12:17:59) nid0: those people aren't building 5000 boards though, they're building 50000 or 500000
[14:00] <ali1234> and broadcom won't talk to you unless you're bulding 50,000,000
[14:01] <sgo11> why can't I simply make usb audio card to be the default audio card instead of making it to be card0 ?
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[14:14] <pigrit> sgo11: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=52106 - relevant ?
[14:15] <sgo11> pigrit, it does not work.
[14:16] <sgo11> pigrit, I tried most posts in google.
[14:16] <sgo11> none of them mention what I should do when there are two USB audio devices.
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[14:18] <pigrit> well they still get different ids ?
[14:19] <sgo11> pigrit, http://paste.ubuntu.com/14258686/
[14:19] <sgo11> pigrit, http://paste.ubuntu.com/14258438/
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[14:21] <pigrit> I see... (noise of dry water well)
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[14:22] <pigrit> can you select the one you want from alsamixer ?
[14:23] <sgo11> pigrit, all solution in google is trying to make usb audio to be card0. but my problem is I have two usb audios. and the keystation88 always becomes card0.
[14:23] <sgo11> pigrit, I can. but no help.
[14:25] <sgo11> pigrit, actually, after setting card1 to be default card in /etc/asound.conf, alsamixer will load card 1 as default sound card. but I don't know why. the system sound won't use card 1. all solution in google is trying to make the preferred sound card to be card0.
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[14:36] <pigrit> sgo11: this may be stupid but have you tried swapping usbs ?
[14:36] <sgo11> pigrit, I tried that. it doesn't work either. :)
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[14:37] <sisel4> use pulseaudio xD
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[14:37] <pigrit> and the keyboard always becomes 0 in whatever order you plug them in
[14:37] <sgo11> sisel4, thanks, I may try that later.
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[14:41] <sisel4> sgo11: pulseaudio isn't cool because is's addational layer in sound system, it has quite high latency but it's quite simple to use and there is simple gui (pavucontrol) to select audio device, contol volume and etc.
[14:42] <sgo11> sisel4, I don't want to use any x server. I am building midi synth. I can not have high latency.
[14:43] <sisel4> so, don't use PA ;)
[14:43] <sisel4> use "bare" alsa
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[14:44] <sisel4> sgo11: when you loading snd-usb-audio module you can pass it parameters to it and set
[14:45] <sisel4> specified card id for usbdevice
[14:45] <sisel4> look here: https://help.ubuntu.com/community/UbuntuStudio/UsbAudioDevices
[14:45] <sisel4> options snd-usb-audio index=1,2,3,4 vid=0x046d,0x1397,0x0763,0x08bb \
[14:45] <sisel4> pid=0x08c6,0x00bc,0x0199,0x2902
[14:46] <sisel4> And every problem you can resolve in asoundrc...
[14:46] <sgo11> sisel4, before trying what you said, this works: http://paste.ubuntu.com/14258899/
[14:47] <sisel4> :D
[14:47] <sgo11> but usb audio card has latency. I can not use it as midi synth. the default sound card has noise/hiss when there is no sound output. I also tried many ways, no solution. it seems that is a hardware issue.
[14:48] <sgo11> anyway, brb.
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[15:22] <engblom> If I would want to write a binary number for setting several GPIO pins at once (not as a sequence), how should I do it?
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[15:24] <engblom> I would want to avoid that 0111 -> 1000 becomes (as when doing it sequencially) 1111 -> 1011 -> 1001 -> 1000 as that means an out put of two wrong values.
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[15:29] <lopta> engblom: You'd want to mask them, I should think.
[15:30] <engblom> lopta: The question is more what tool I should use? Under /sys/class/gpio/ I can only access one pin at the time, not the whole gpio module.
[15:31] <lopta> engblom: I don't know whether the library you're using lets you set pins individually but the old-fashioned way of doing it would be to read the port first, let's say you get 1010 back and you want to set the middle two bits to 10, then you could bitwise AND it with 1001 and then bitwise OR it with 0100 and then write it out.
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[15:31] <lopta> No idea how you do that on a Raspberry Pi though.
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[15:32] <engblom> lopta: I know. I can only find ways to set one pin at the time. When I would want to set all GPIO pins at once
[15:33] <lopta> I've never programmed the Raspberry Pi, so I couldn't say.
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[15:34] <lopta> I need to go to a place and plug a thing in. Hopefully I'll be back here this evening.
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[15:56] <Hobby> Has anyone had issues with the adafruit case for the raspberry pi model B?
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[15:59] <Vanfanel> Hi. Does anybody know who did the SDL2 backend for Raspberry Pi?
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[15:59] <AlexC_> Moin
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[16:00] <AlexC_> I've got a keypad which requires 7 GPIO slots, and on the Pi that I have (B2 I believe) I don't have a full row of 7 GPIO pins (ground or power pins are in the way). What's options do I have besides using a big breadboard and lots of wires? I'm thinking maybe there is an extension you can get which provides more GPIOs that are all in a line?
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[16:04] <t3chguy> AlexC_: why not just use Dupont Female to Male cables?
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[16:05] <AlexC_> t3chguy: Just what I was after, thanks!
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[16:06] <t3chguy> No problem AlexC_
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[16:15] <matyus> Hobby: what issues are you having? I was thinking of buying one
[16:16] <[Saint]> I'll sell you some issues if you want.
[16:16] <[Saint]> I've got plenty.
[16:16] <matyus> [Saint]: -_- issues with the adafruit case
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[16:18] <helderc> !new BWI 1.7.3c FULL.zip
[16:19] <Spiffy> ?
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[16:27] <JakeSays> anyone ever used efl on the pi?
[16:27] <gordonDrogon> engblom, wiringPi has a digitalWriteByte() function.
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[16:28] <gordonDrogon> engblom, it will write an 8-bit value to the first 8 usable gpio pins as quickly as it can - however it takes 2 operations to set the bits correctly - that's due to the way the gpio hardware works.
[16:29] <gordonDrogon> AlexC_, there's no easy solution - just a big breadboard to act as a physical converter, or make a little bit of perfboard and solder jumper wires...
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[16:30] <gordonDrogon> Hobby, the old case with the "dragon claws" ?
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[16:34] <Hobby> I found that the case wasn't deep enough
[16:34] <gordonDrogon> I found they shattered when dropped )-:
[16:35] <gordonDrogon> but otherwise had no issues with them...
[16:35] <Hobby> Clear top, black base
[16:36] <gordonDrogon> probably newer than the ones I had - they were all clear.
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[16:36] <gordonDrogon> and had those silly 'dragon claws' to let you clip them together (they used to break off too)
[16:40] <matyus> hmm maybe I'll just get the protector
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[16:58] <brianx> Xark: connected a zero back to back with the pi (crossing rx/tx, connecting ground) and receive from the zero but can't see any evidence that it sees me transmitting. there are plenty of console messages but no evidence of a getty running.
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[17:07] <pigrit> note to self: compile on the pi2 D:
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[17:09] <brianx> Xark: same result on pi zero <--> pi2b. maybe this image doesn't have a getty running.
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[17:28] <Hobby> gordonDrogon: I think I've got a completely different case
[17:28] <Hobby> I'll take a picture of it once I get back home
[17:28] * sophusn (~sophusn@x1-6-6c-b0-ce-b6-7d-a0.cpe.webspeed.dk) Quit (Read error: Connection reset by peer)
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[17:54] <Ub3r> https://www.adafruit.com/products/2885 Has Pi Zero in stock; over priced for extra items, but cheaper than ebay/amazon
[17:55] <SpeedEvil> 32 in stock
[17:56] <Encrypt> That's crazy to see how fast the Zero has sold out... (<.<)
[17:56] * gbaman (~gbaman@host81-139-122-189.in-addr.btopenworld.com) has joined #raspberrypi
[17:56] <SpeedEvil> hah
[17:57] <brianx> if you're in the us, try microcenter.
[17:57] <SpeedEvil> $5 Pi, $29.32 shipping
[17:57] * simcop2387 (simcop2387@p3m/member/simcop2387) has joined #raspberrypi
[17:59] * gbaman_ (~gbaman@host81-139-122-189.in-addr.btopenworld.com) Quit (Ping timeout: 240 seconds)
[17:59] <traeak> microcenter
[18:00] <traeak> 29usd rpi2
[18:00] <traeak> dealextreme for most everything else
[18:00] <traeak> i actually bought my powered usb hub from mickeycenter too
[18:00] <traeak> nice its less than 10mins drive from the office
[18:00] <brianx> microcenter had my zero in stock on the 23rd. :-)
[18:00] <Ub3r> SpeedEvil; shipping for me was $4.97... you live at the north pole?
[18:00] <brianx> now if i can only get it's getty working...
[18:01] <traeak> which getty? from the ttl ?
[18:01] <traeak> i'm cable challenged so not too interested in the rpi0
[18:02] <brianx> the one for gpio pins 8 and 10. getting boot messages but no getty yet.
[18:02] <IT_Sean> Yeah, the $5 price point is less appealing when you'd have to buy $15 worth of USB and HDMI adapters to get the durn thing powered up and werkin'
[18:02] <brianx> actually using an old CD-ROM audio cable, the one that goes to the sound card. pulled the pins out and inserted ground straight through, rx and tx crossed.
[18:02] * ghormoon (~ghormoon@ghorland.net) has joined #raspberrypi
[18:03] * elsevero (~elsevero@82.79.75.113) Quit (Ping timeout: 240 seconds)
[18:04] <brianx> IT_Sean: it looks like it's practical to boot a zero with nothing but a spare micro usb phone data cable. not working yet, but usb gadget promises to get me to booting off sd and ethernet over usb.
[18:04] <brianx> IT_Sean: there's a boot from usb option on the A posted on github that should also work on the zero.
[18:06] <brianx> i hope to blog the full directions to connect your pi zero to your pi b(+/2) without anything more than a cable but i'm sure that's a week away still.
[18:06] * IT_Sean is now known as IT_AFK
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[18:09] * kill_-9_1 is now known as MY123
[18:12] * Kymru (~Kymru@host86-184-179-141.range86-184.btcentralplus.com) has joined #raspberrypi
[18:12] <SpeedEvil> Ub3r: UK
[18:12] <Ub3r> Thats probably why shipping so much, adafruit is US based
[18:12] * elsevero (~elsevero@82.79.75.113) Quit (Read error: Connection reset by peer)
[18:13] <SpeedEvil> IT_AFK: Depends what you want to do. I'd like to play with it foe some things that would need no HDMI/...
[18:13] <SpeedEvil> GPIO/SD and that's it
[18:13] <Ub3r> I was gonna wait to order one from pimoroni but shipping would have been way more for me from them... even though they have better price for the items.
[18:15] * ctrlshftn is now known as ctrlshftn-away
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[18:22] <Kymru> does anyone know any where to get a case 3d printed in the UK?
[18:23] <Apocx> https://www.makexyz.com/3dprinters/
[18:24] <Apocx> Put in your location at the top left, will show you local services
[18:24] <SpeedEvil> Kymru: digits2widgets
[18:24] <SpeedEvil> http://digits2widgets.com/
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[18:46] * IT_AFK is now known as IT_Sean
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[19:05] <DMackey> Get:13 http://archive.raspberrypi.org/debian/ wheezy/main raspberrypi-bootloader armhf 1.20151118-1 [31.5 MB]
[19:05] <DMackey> Taking forever to download today....
[19:06] * jmbarbier (~jmbarbier@rominet.solidev.net) has joined #raspberrypi
[19:07] <IT_Sean> try shaking your router.
[19:07] <DMackey> lol
[19:07] <DMackey> I like it
[19:07] <IT_Sean> it lines up all the bits so they go through the wire more smoothly, and thus, more quickly.
[19:08] <t3chguy> lol IT_Sean
[19:08] * duckpuppy (~patrickai@40.132.208.228) has joined #raspberrypi
[19:08] <IT_Sean> All it takes is one bit to get wedged in there sideways, and BOOM. traffic jam.
[19:08] <IT_Sean> :p
[19:08] <DMackey> rofl
[19:08] <t3chguy> IT_Sean: you should make an animation of that
[19:08] <IT_Sean> Can you tell I've worked in IT for too long? :p
[19:09] <t3chguy> it'll get rid of pesky users for sure
[19:09] * gbaman_ (~gbaman@host81-139-122-189.in-addr.btopenworld.com) has joined #raspberrypi
[19:10] <t3chguy> s/users/lusers/
[19:10] <IT_Sean> Your router might be overheating! Drop it into a bucket of ice water. Leave it plugged in, though, so your connection doessn't go down.
[19:10] * jlf (~user@pdpc/supporter/active/jlf) has joined #raspberrypi
[19:10] * gbaman_ (~gbaman@host81-139-122-189.in-addr.btopenworld.com) Quit (Read error: Connection reset by peer)
[19:10] <IT_Sean> :p
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[19:10] * gbaman_ (~gbaman@host81-139-122-189.in-addr.btopenworld.com) has joined #raspberrypi
[19:11] <Tenkawa> hi all
[19:11] * ziesemer (~mark@cpe-107-10-85-138.new.res.rr.com) has joined #raspberrypi
[19:12] <t3chguy> xD
[19:12] <t3chguy> IT_Sean: with that you're fixing a much bigger problem, the luser him/herself
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[19:12] * gbaman (~gbaman@host81-139-122-189.in-addr.btopenworld.com) Quit (Ping timeout: 240 seconds)
[19:13] * duckpuppy (~patrickai@40.132.208.228) Quit (Ping timeout: 250 seconds)
[19:13] <DMackey> Every now and then this POS cable modem needs a reboot. Pisses me off to no end
[19:13] <DMackey> Time Warner
[19:13] <Tenkawa> ouch
[19:13] <Tenkawa> i had one go bad on me back in the day and go flaky like that first... was so annoying
[19:14] <DMackey> and to be honest it MOSTLY does it when I run utorrent. I have no idea what the problem is
[19:15] * derk0pf (~derk0pf@p508BA639.dip0.t-ipconnect.de) Quit (Quit: ZzzZZzZZZ.)
[19:15] <IT_Sean> Sounds like the problem is utorrent
[19:15] <IT_Sean> or you have a crap modem
[19:16] <DMackey> Motorola SBG6580
[19:16] <DMackey> Router/Modem combo deal
[19:16] <IT_Sean> Is it the one your ISP 'gave' you?
[19:16] <DMackey> Nope, That was a REAL POS, bought my own modem
[19:17] <IT_Sean> I never liked the combo whoosits... they are always more trouble than they are worth.
[19:17] <IT_Sean> basic modem & seperate router / AP
[19:17] <IT_Sean> that's the way to go
[19:17] <DMackey> Thats what I used to have, ran a Linksys WRT54G DD-WRT Modded router
[19:17] <IT_Sean> I'm on an ASUS router these days. Quite happy w/ it
[19:17] * oxhak (~OxHaK@unaffiliated/oxhak) has joined #raspberrypi
[19:18] <DMackey> I heard those were nice
[19:18] <IT_Sean> t'is
[19:18] <DMackey> WHat model is it?
[19:19] * oxhak (~OxHaK@unaffiliated/oxhak) Quit (Remote host closed the connection)
[19:19] <IT_Sean> I don't reall offa the top of my head
[19:19] <IT_Sean> sorry.
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[19:27] <brianx> does anyone know where to find the docs on systemd? i need to edit an offline jesse filesystem to enable getty for a headless zero
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[19:33] <t3chguy> brianx: https://wiki.archlinux.org/index.php/Systemd_FAQ
[19:35] * kushal (~kdas@fedora/kushal) Quit (Ping timeout: 276 seconds)
[19:36] <brianx> t3chguy: thanks
[19:36] * rynkan (~rijad@95.109.98.22) Quit (Ping timeout: 250 seconds)
[19:37] <t3chguy> np brianx
[19:38] * bizarro_1 (~bizarro_1@101.Red-80-39-231.dynamicIP.rima-tde.net) has joined #raspberrypi
[19:38] * IT_Sean drops t3chguy's modem into a bucket of icewater to stop it overheating
[19:38] * zer0her0 (~Z@unaffiliated/zer0her0) has joined #raspberrypi
[19:38] <brianx> t3chguy: systemctl is not available, the computer is not reachable when booted, the only access i have is to the sd card while it is not running.
[19:39] <t3chguy> brianx: systemctl enable just creates a symlink
[19:39] <t3chguy> so try it on a different system and it tells you what symlink it creates
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[19:39] * giddles (~da@unaffiliated/giddles) has joined #raspberrypi
[19:39] * LemonjuiceX (~otto@dsl-kpobrasgw1-54fade-219.dhcp.inet.fi) has joined #raspberrypi
[19:40] <brianx> t3chguy: any idea where the docs for that link creation might be? i think i have the link right but it's not functioning and i don't have enough access to diagnose, my only option is to be sure it's right.
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[19:41] * TheHacker66 (~TheHacker@151.30.30.156) Quit (Remote host closed the connection)
[19:41] <t3chguy> brianx: no idea
[19:41] <t3chguy> sorry
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[19:45] <brianx> ok, thanks.
[19:45] <brianx> going to just dump this image and write a fresh jessie to it.
[19:47] * Rootert (~Rootert@54694E34.cm-12-2b.dynamic.ziggo.nl) Quit (Remote host closed the connection)
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[19:51] * c64joystickguy (adb69b8f@gateway/web/freenode/ip.173.182.155.143) has joined #raspberrypi
[19:54] <c64joystickguy> Hi all. I've got a Pi2 for XMas and I'm making a retropie out of it. Most of it works fine but I have a problem loading the db9_gpio_rpi driver on startup.
[19:55] <c64joystickguy> I made the db9 to gpio cable and It works with 2 joysticks (atari style, 4 directions and 1 button)
[19:56] <c64joystickguy> I can dynamically load the driver with "modprobe db9_gpio_rpi map=1,1" at the command prompt
[19:56] * taza (~taza@unaffiliated/taza) has joined #raspberrypi
[19:56] * nimoot (~HomoSapie@unaffiliated/toomin) has joined #raspberrypi
[19:57] <c64joystickguy> From what I read, I should be able to load the driver during boot by adding "db9_gpio_rpi map1,1" to /etc/modules
[19:57] <DMackey> Have you tried putting it in rc.local instead?
[19:57] <DMackey> <-- mostly a noob :)
[19:58] <c64joystickguy> No, I have not tried that
[19:59] <c64joystickguy> I'll look into that
[19:59] * dj_pi (~dj@c-73-191-212-56.hsd1.mi.comcast.net) Quit (Ping timeout: 240 seconds)
[19:59] <t3chguy> c64joystickguy: does it work when loading manually using modprobe?
[19:59] <DMackey> Give it a go worst thing can happen is it's still doesn't work
[19:59] <Stanto> retropie's based on wheezy iirc
[19:59] <c64joystickguy> t3chguy: yes it does work when I load it manually
[20:00] * toomin (~HomoSapie@unaffiliated/toomin) Quit (Ping timeout: 246 seconds)
[20:01] <c64joystickguy> btw, I get an error message during boot when I add "db9_gpio_rpi map=1,1" to /etc/modules
[20:01] <Tenkawa> what was the error?
[20:01] * almostworking (~almostwor@unaffiliated/almostworking) has joined #raspberrypi
[20:01] <c64joystickguy> "Failed to start Load Kernel Modules."
[20:02] <c64joystickguy> When I remove my line from /etc/modules I don't get that error message
[20:02] <t3chguy> it should give a reason as well as a notice of failure
[20:02] <Tenkawa> did you read manpage modules and make sure the formatting was consistent?
[20:02] * TyrfingMjolnir (~Tyrfing@89.10.104.94) has joined #raspberrypi
[20:03] <c64joystickguy> it says: "see systemctl status systemd-modules-load.service fir details
[20:04] <c64joystickguy> tenkawa: I did not read that. I did what I some people said to do on forums. I'm still a novice to linux in general, I've got lots to learn.
[20:05] <c64joystickguy> and "systemctl status systemd-modules-load.service" does not give information I feel can help me with my problem
[20:08] * doomlord (~textual@host86-153-157-188.range86-153.btcentralplus.com) has joined #raspberrypi
[20:10] * finlstrm (~finlstrm@ip70-181-34-150.ri.ri.cox.net) has joined #raspberrypi
[20:12] <c64joystickguy> DMackey: adding the line to rc.local seems to work. Is there any reason why it would be better to find a way to make it start from /etc/modules instead or it is roughly equivalent?
[20:12] <brianx> t3chguy: it worked to just reimage the sdcard from a new download. maybe my antique install that had gone through lots of upgrades to reach jesse was just too messed up.
[20:13] <t3chguy> maybe brianx
[20:13] * Sisco (Sisco@unaffiliated/sisco) Quit (Ping timeout: 265 seconds)
[20:13] <DMackey> c64joystickguy, No idea. I had set up an RPi with that Adafruit Onion Tor and for some reason DHCP was always screwing up on reboot so I placed the DHCP command there and it just worked
[20:14] <Tenkawa> c64joystickguy: unfortunately i dont use systemd at all when i can. I use sysvinit
[20:14] * Flynnn (~textual@unaffiliated/flynnn) has joined #raspberrypi
[20:15] <c64joystickguy> To be perfectly honest, I don't know what systemd or sysvinit does. I'm really new to this... I'll try to learn about this.
[20:15] <Tenkawa> cool. hopefully you will have fun
[20:16] <Tenkawa> I should convert one of my pi2's to a retro pie box
[20:16] <Tenkawa> heheh
[20:17] <c64joystickguy> I hope I will! It's a bit intimidating coming from more commercial OSes where everything is made to be invisible.
[20:17] <c64joystickguy> Suddenly you have that OS that trusts you to know what you're doing (which I can't say is my case)
[20:18] <Tenkawa> c64joystickguy: heehee I hear ya
[20:18] <Tenkawa> learning new OS is fun (at least for me)
[20:19] <Tenkawa> I've been using unix though since the 80's
[20:19] <Tenkawa> and started linux in its very early days
[20:21] <brianx> Tenkawa: you'd appreciate that i'm an sco ace then.
[20:21] <brianx> lol
[20:21] <Tenkawa> brianx: nice.. unixware!!!
[20:21] <brianx> pre unixware days
[20:21] <Tenkawa> oh like v4?
[20:22] <Tenkawa> I started on ncr svr4
[20:22] <brianx> it was sys v
[20:22] <brianx> they just hadn't started calling it unixware yet.
[20:22] * elsevero (~elsevero@79.117.67.59) Quit (Remote host closed the connection)
[20:22] <Tenkawa> actually now that i think about it my xenix days I think were older.
[20:23] <Tenkawa> (if i remember how to spell that right)
[20:23] <brianx> hmm, xenix was old. i think i first played with that in the mid 80s
[20:23] <Tenkawa> brianx: yeah I remember good ole sco unix well.. first commercial setup i did was remedy on it
[20:24] <brianx> fun days
[20:24] * oxhak (~OxHaK@unaffiliated/oxhak) has joined #raspberrypi
[20:24] <Tenkawa> indeed
[20:24] * c64joystickguy (adb69b8f@gateway/web/freenode/ip.173.182.155.143) Quit (Ping timeout: 252 seconds)
[20:24] * Sisco (Sisco@unaffiliated/sisco) has joined #raspberrypi
[20:24] <Tenkawa> its why i stuck with unix/linux.. i just really had a lot of fun
[20:26] * gordonDrogon remembers v6 on a pdp11 ... them were the days ...
[20:26] <gordonDrogon> I learned C on that.
[20:27] <brianx> i remember pdp11 but just barely. i was in grade school.
[20:27] <Tenkawa> i avoided the pdp11;s
[20:27] <Tenkawa> just didnt like them...
[20:27] <Tenkawa> not sure why
[20:27] <gordonDrogon> it was all I had then - however the uny went down the Prime route )-:
[20:27] <Tenkawa> ahh
[20:29] <gordonDrogon> hm. can't find scope )-: that's the problem with these new fangled pocket sized ones - you lose them )-:
[20:30] <gordonDrogon> found it - and there's live in the battery - bonus :)
[20:33] <brianx> gordonDrogon: wow, better than my pocket one. seems like i lose it for 10 minutes and the battery is gone.
[20:33] * andrew9183 (~andrew918@dhcp-c8-b3-73-52-a5-52.cpe.sourcecable.net) has joined #raspberrypi
[20:33] * andrew9183 (~andrew918@dhcp-c8-b3-73-52-a5-52.cpe.sourcecable.net) Quit (Client Quit)
[20:34] * ThePendulum (~ThePendul@54195732.cm-5-2b.dynamic.ziggo.nl) has joined #raspberrypi
[20:34] <ThePendulum> :C
[20:34] <ThePendulum> I ordered some level shifters, LED strip still not responding
[20:35] * netzfisch (~Thunderbi@x55b0654e.dyn.telefonica.de) Quit (Ping timeout: 245 seconds)
[20:35] <t3chguy> ThePendulum: what LED Strip?
[20:35] <ThePendulum> I got a 16×16 WS2811 LED strip I'm trying to control with a Pi B
[20:36] <ThePendulum> I got another 160 LED WS2801 strip working flawlessly
[20:36] <t3chguy> 16x16 strip?
[20:36] <t3chguy> that sounds more like a grid
[20:36] <ThePendulum> yeah, grid
[20:36] <ThePendulum> not a matrix qua powering though
[20:36] <ThePendulum> it's a folded strip qua wiring
[20:37] * SpeedEvil (~quassel@tor/regular/SpeedEvil) Quit (Quit: No Ping reply in 180 seconds.)
[20:37] <ThePendulum> but for all intents and purposes it can be considered a 256 LED strip
[20:37] * HtheB (~HtheB@Maemo/community/council/htheb) has joined #raspberrypi
[20:37] * SpeedEvil (~quassel@tor/regular/SpeedEvil) has joined #raspberrypi
[20:38] <ThePendulum> I'm not sure if it's a software issue
[20:39] * amosko (2f137a02@gateway/web/freenode/ip.47.19.122.2) has joined #raspberrypi
[20:39] <amosko> Hi
[20:40] <ThePendulum> does anyone have a working application for a WS2811 strip?
[20:40] <ThePendulum> 'lo amosko
[20:40] <amosko> I just ordered a model A+ to try out that magic mirror project so I'll probably be popping my head in here quite a bit
[20:40] * Berg (~chatzilla@pa114-72-163-129.pa.nsw.optusnet.com.au) has joined #raspberrypi
[20:41] <t3chguy> ThePendulum: aren't they not RPi compatible (only with hacks, such as the Unicorn HAT)
[20:41] <ThePendulum> t3chguy: afaik they're not ideal but they should work
[20:41] * dj_pi (~dj@c-73-191-212-56.hsd1.mi.comcast.net) has joined #raspberrypi
[20:41] <ThePendulum> https://learn.adafruit.com/neopixels-on-raspberry-pi/wiring
[20:41] <gordonDrogon> brianx, it's one of the early seedstudio DSO Quad devices.
[20:41] <ThePendulum> I mean there's an entire article on them
[20:43] <ThePendulum> they just flash once and then nothing
[20:43] <ThePendulum> meh
[20:44] <ThePendulum> t3chguy: I deliberately bought WS2801s myself but my dad gifted me a WS2811 grid and I really want this to work for him D:
[20:44] <t3chguy> I've only ever ran WS2812, WS2812S, WS2812B
[20:44] <ThePendulum> t3chguy: afaik they have the same problems as the WS2811s?
[20:45] <ThePendulum> The don't have a clock channel and the Pi is bad at clocking the data channel
[20:45] <ThePendulum> also that library is for WS281x, thus I imagine it'd work with both the WS2811s and WS2812s
[20:45] <t3chguy> well the UnicornHAT by Pimoroni is a Raspberry Pi accessory of them
[20:46] * exonormal (~mini-acer@cpe-67-249-185-152.twcny.res.rr.com) has joined #raspberrypi
[20:46] <ThePendulum> hmm I should see if I can run that
[20:47] <ThePendulum> I can't even get the python strandtest to work though
[20:47] * Cimbi (~Cimbi@unaffiliated/cembo) has joined #raspberrypi
[20:47] <Berg> https://shop.pimoroni.com/products/unicorn-hat
[20:47] <Berg> hello world im berg i just waked
[20:47] <ThePendulum> yeah I looked it up
[20:47] <ThePendulum> Berg: holy shit that gif
[20:48] <ThePendulum> and I have 4× as many LEDs
[20:48] <ThePendulum> the potential :D
[20:48] <Berg> rude word alert
[20:48] <t3chguy> lol ThePendulum
[20:48] <t3chguy> look at Pixie at Pimoroni
[20:48] <t3chguy> get a grid of those ;)
[20:48] <Berg> i need a pi thats self replicating
[20:48] <t3chguy> they are https://shop.pimoroni.com/products/pixie-3w-chainable-smart-led-pixel
[20:49] <ThePendulum> t3chguy: https://shop.pimoroni.com/products/pixie-3w-chainable-smart-led-pixel
[20:49] <t3chguy> 3W Neopixels!!
[20:49] <ThePendulum> theem?
[20:49] <ThePendulum> ah :P
[20:49] <ThePendulum> wait 3W each?
[20:49] <ThePendulum> oh
[20:49] <t3chguy> yeah
[20:49] <ThePendulum> total :P
[20:49] <ThePendulum> oh
[20:49] <t3chguy> RGB = 3W
[20:49] <ThePendulum> each indeed, jesus
[20:49] <ThePendulum> yeah
[20:50] <t3chguy> just think, a standard Neopixel is 300mW
[20:50] <ThePendulum> I could power maybe 15 of those with the PSU I'm using for my entire setup
[20:50] * netzfisch (~Thunderbi@x55b0654e.dyn.telefonica.de) has joined #raspberrypi
[20:50] <t3chguy> xD
[20:50] <t3chguy> I use an 850W ATX Power Supply for my prototypes
[20:50] <ThePendulum> 300mW is the loose ones though? I think the ones in my strips use a lot less
[20:50] <ThePendulum> rofl
[20:51] <ThePendulum> 850W for some christmas decoration
[20:51] <Berg> my fridge uses less
[20:51] <t3chguy> Neopixels (should be) 20mA per channel
[20:51] <t3chguy> so 60mA per NeoPixel
[20:51] <t3chguy> at 5V thats 300mW
[20:51] <ThePendulum> oh right
[20:52] <t3chguy> Pixies are stuck at 5V, whereas Neopixels will run fine at 3v3, (with a little less current draw and brightness)
[20:53] * ozzzy has pixies at the bottom of the garden
[20:53] <t3chguy> whats even better ThePendulum
[20:53] <t3chguy> they don't use the stupid strict timing communique
[20:53] <t3chguy> they use 115200 Baud UART
[20:54] * wili (~wili@89.24.156.114) has joined #raspberrypi
[20:54] <t3chguy> so even a basic as hell HC-05 Bluetooth module can drive it on its own
[20:55] * cyborg-one (~cyborg-on@130-0-58-66.broadband.tenet.odessa.ua) has joined #raspberrypi
[20:56] <Berg> i shot a pixies for stealing my strawberries
[20:57] * jmbarbier (~jmbarbier@rominet.solidev.net) Quit (Quit: My Mac has gone to sleep. ZZZzzz…)
[20:57] <t3chguy> lol
[20:58] <brianx> gordonDrogon: so is mine. never did hold a charge worth a damn.
[20:59] <Berg> i have to wait a year for my touch screen
[20:59] <Berg> well till next year thats in a day ot 2
[20:59] * parasight (~paris@p20030086AE4FE832DC284F41DAD333EB.dip0.t-ipconnect.de) has joined #raspberrypi
[21:01] <ThePendulum> ain't this some bullshit
[21:01] <ThePendulum> I know the LEDs work, at least red and blue
[21:02] * ziesemer (~mark@cpe-107-10-85-138.new.res.rr.com) Quit (Ping timeout: 260 seconds)
[21:02] * DMackey (~n2dvm@cpe-67-246-122-255.twcny.res.rr.com) Quit (Read error: Connection reset by peer)
[21:03] * ziesemer (~mark@cpe-107-10-85-138.new.res.rr.com) has joined #raspberrypi
[21:04] * Fakap (juliusn@shell.metropolia.fi) has joined #raspberrypi
[21:05] * matyus (~matyus@ool-2f1474fb.dyn.optonline.net) Quit (Quit: WeeChat 1.3)
[21:05] <ThePendulum> I wish I could see if the signal is actually going through the GPIO wire
[21:06] <t3chguy> ThePendulum: stick an LED On it?
[21:06] <t3chguy> should be dimly lit
[21:07] * parasight (~paris@p20030086AE4FE832DC284F41DAD333EB.dip0.t-ipconnect.de) Quit (Quit: Verlassend)
[21:08] * riotz (~riotz@unaffiliated/riotz) has joined #raspberrypi
[21:08] <ThePendulum> t3chguy: hmm good one
[21:08] <ThePendulum> let me see if I have something that should respond well to 3.3V
[21:08] * duckpuppy (~patrickai@h228.208.132.40.static.ip.windstream.net) has joined #raspberrypi
[21:09] <t3chguy> thats assuming you're updating the Neopixels constantly
[21:09] <t3chguy> and not just setting a static "image"
[21:09] * Tenkawa (~arakeen@unaffiliated/tenkawa) Quit (Quit: leaving)
[21:09] * HtheB (~HtheB@Maemo/community/council/htheb) Quit (Ping timeout: 264 seconds)
[21:11] <ThePendulum> no response
[21:11] <ThePendulum> t3chguy: the strandtest.py should send an animation
[21:11] <ThePendulum> let me see if the LED response to a channel I know works
[21:13] * duckpuppy (~patrickai@h228.208.132.40.static.ip.windstream.net) Quit (Ping timeout: 240 seconds)
[21:13] * Encrypt (~Chuck-nor@AMontsouris-553-1-49-126.w92-151.abo.wanadoo.fr) has joined #raspberrypi
[21:14] <ThePendulum> t3chguy: that doesn't seem to work even when the GPIO does
[21:14] <ThePendulum> odd, I imagine it should
[21:14] <ThePendulum> oh hold on, my app might be broken
[21:15] <ThePendulum> that does work :D
[21:15] * knob (~knob@mobile-166-172-188-138.mycingular.net) Quit (Ping timeout: 276 seconds)
[21:15] <ThePendulum> the LED flashes a lot slower than I would've thought
[21:16] * nfk|laptop (~nfk@unaffiliated/nfk) has joined #raspberrypi
[21:16] <t3chguy> it should be flashing at microsecond intervals
[21:16] <ThePendulum> yeah it does
[21:16] <ThePendulum> a single flash contains the entire datastring?
[21:16] * wili (~wili@89.24.156.114) Quit (Quit: My Mac has gone to sleep. ZZZzzz…)
[21:17] <t3chguy> it'll flash fast enough for your eye to not see the '0's
[21:17] <ThePendulum> not even sure if the LED responses fast enough to display it
[21:17] <t3chguy> it'll look dimmer/brighter based on the ratio of 1s to 0s
[21:17] <ThePendulum> chips sure, but the LED itself?
[21:18] <t3chguy> LED itself, yes
[21:18] <ThePendulum> oh you're right on that one
[21:18] <t3chguy> its a PWM effect
[21:18] <t3chguy> the duty cycle will increase with more '1's
[21:18] <t3chguy> and decrease with more '0's
[21:18] <ThePendulum> alright, so it works on the channel I know works
[21:18] <ThePendulum> now the moment of truth
[21:19] <ThePendulum> ace, so it's a software issue
[21:19] <ThePendulum> it's not sending anything over the 18th pin
[21:19] * HtheB (~HtheB@Maemo/community/council/htheb) has joined #raspberrypi
[21:19] <t3chguy> weird
[21:19] <ThePendulum> rofl, so this entire thing might've worked fine without the level shifter
[21:19] <ThePendulum> oh well, they weren't expensive
[21:19] <ThePendulum> doesn't hurt to supply the correct voltage
[21:20] <t3chguy> yeah Neopixels work fine at 3v3
[21:20] <t3chguy> as long as their power is >= 3v3
[21:20] <ThePendulum> they're at 5V
[21:20] <t3chguy> the data can be at 3v3 then
[21:21] <ThePendulum> oh >=
[21:21] <t3chguy> the only way it can't go is 3v3 power and 5v data, they won't be happy with that
[21:21] <ThePendulum> hmm
[21:21] <t3chguy> though I've done that before and they have survived
[21:21] <ThePendulum> I would've thought the other way roun
[21:21] <ThePendulum> d
[21:21] <ThePendulum> haha well
[21:21] <t3chguy> power always has to be higher than data in most circuitry
[21:21] <t3chguy> it'll pop the data pin otherwise (possibly)
[21:21] <ThePendulum> t3chguy: I thought the issue with 3v3 was more that it would be a logical 0 in some circumstances
[21:22] <t3chguy> ThePendulum: most systems use 3v as the threshold
[21:22] <t3chguy> so 3v3 should be just high enough
[21:22] <ThePendulum> it's in the specs for the WS2811, it's running more by luck that judgement
[21:22] <ThePendulum> *WS2801
[21:22] * zer0her0 (~Z@unaffiliated/zer0her0) Quit (Quit: ZZZzzzzz...)
[21:22] <ThePendulum> well probably the others as well
[21:22] <t3chguy> pah I don't read specs!
[21:22] <ThePendulum> haha
[21:23] * nimoot (~HomoSapie@unaffiliated/toomin) Quit (Ping timeout: 246 seconds)
[21:23] <ThePendulum> the input voltage for the WS2801s should be +/- 0v3 VCC
[21:23] <ThePendulum> thus I'm somewhat surprised that 3v3 does the trick at 5V
[21:23] <t3chguy> lower is fine, it just might not get detected
[21:24] <t3chguy> you can use 3v3 UART into a 5V UART for example
[21:24] <ThePendulum> yeah, logical 0, which isn't desired either :P
[21:24] <ThePendulum> you'll get funky colors
[21:24] <t3chguy> (but need a potential divider for the return path, 5v->3v3)
[21:24] <ThePendulum> but that isn't actually happening
[21:24] <t3chguy> well not funky colours
[21:24] <t3chguy> you'd get nothing
[21:24] <t3chguy> as it'd be a constant 0
[21:24] * esas (~esas@unaffiliated/esas) has joined #raspberrypi
[21:25] <ThePendulum> I imagine it could fluctuate in some circumstances
[21:25] * Aboba (~Bob@S010614cc209fc3d3.gv.shawcable.net) Quit (Quit: Leaving)
[21:26] <ThePendulum> welp, now to figure out why there's no data coming from GPIO18
[21:27] <ThePendulum> I'm surprised the grid doesn't respond at all to the WS2801's data
[21:27] * kbytes (~kbytes@unaffiliated/kbytes) has joined #raspberrypi
[21:27] <t3chguy> http://pinout.xyz/pinout/pin12_gpio18
[21:27] <ThePendulum> I would've thought the odd chunk of data would be recognized as something useful
[21:27] <t3chguy> looks like that pin is the key to the Unicorn HAT lol
[21:28] <ThePendulum> waut what
[21:28] <ThePendulum> *wait
[21:28] <ThePendulum> pin 12
[21:28] <ThePendulum> let me reread the docs here rofl
[21:29] <ThePendulum> Connect Raspberry Pi pin 18 to 74AHCT125 pin 1A.
[21:29] <ThePendulum> surely that isn't a misunderstanding is it
[21:29] <ThePendulum> let me see
[21:30] * dotness (~dotness@user-188-33-94-77.play-internet.pl) has joined #raspberrypi
[21:30] <ThePendulum> Holy shit
[21:30] * dj_pi (~dj@c-73-191-212-56.hsd1.mi.comcast.net) Quit (Ping timeout: 246 seconds)
[21:31] <t3chguy> ThePendulum: (not that I care, but the rest of the channel) Language...
[21:31] <ThePendulum> right
[21:31] <ThePendulum> lol, this must've been the first time in 5 years I've been called out for that
[21:31] <ThePendulum> sorry
[21:31] <ThePendulum> t3chguy: there's data on pin 12
[21:31] <ThePendulum> seems like I misinterpret this entirely
[21:31] <t3chguy> lol
[21:31] <ThePendulum> let me see if it actually works
[21:31] <ThePendulum> "Raspberry Pi pin 18"
[21:31] <ThePendulum> if you read that
[21:32] <t3chguy> it doesn't specify physical vs BCM pin number
[21:32] <ThePendulum> would you connect it to GPIO 18 (pin 12) or pin 18 (GPIO24)?
[21:32] <t3chguy> try both xD
[21:32] <t3chguy> I can't say I've used anything on the GPIO other than UART and SPI, I use Arduinos for all other things :P
[21:33] <ThePendulum> well this is disappointing
[21:33] <ThePendulum> there's data on pin 12 but the grid doesn't respond
[21:33] <ThePendulum> at least we're getting somewhere
[21:34] <t3chguy> maybe the grid needs very strict timing
[21:34] <t3chguy> I know one revision of Neopixels can accept 400 or 800 kHz
[21:34] <t3chguy> but some only accept 800kHz, which I think the Pi just about can't manage
[21:34] * SpeedEvil (~quassel@tor/regular/SpeedEvil) Quit (Read error: Connection reset by peer)
[21:34] <ThePendulum> oh hmm
[21:34] <ThePendulum> I think it's set to 800
[21:34] * SpeedEvil (~quassel@tor/regular/SpeedEvil) has joined #raspberrypi
[21:35] <ThePendulum> well I've confirmed I need pin 12 here, GPIO 18
[21:35] <ThePendulum> now to get it to work
[21:35] <ThePendulum> the data is there, why isn't the grid
[21:35] <t3chguy> not enough power?
[21:35] <t3chguy> how much current is your supply capable of :P?
[21:37] * wili (~wili@89.24.156.114) has joined #raspberrypi
[21:37] <ThePendulum> 10A
[21:37] <ThePendulum> it's flashing now
[21:37] <ThePendulum> I removed the shifter
[21:37] <t3chguy> oooh PROGRESS
[21:37] <ThePendulum> yep
[21:38] <t3chguy> maybe your shifter isn't fast enough xD
[21:38] <ThePendulum> let me try powering it from both sides
[21:38] <ThePendulum> lol it should be
[21:38] <t3chguy> yeah should xD
[21:38] <ThePendulum> and is there a speed limit on those things? I mean, they're simple enough
[21:38] <ThePendulum> buncha transistors
[21:38] * netzfisch (~Thunderbi@x55b0654e.dyn.telefonica.de) Quit (Ping timeout: 265 seconds)
[21:38] <t3chguy> yeah, but it'll be stupidly high
[21:39] <t3chguy> I hit a limit on a phototransistor at one point
[21:39] <t3chguy> it was something like 228kHz
[21:39] <ThePendulum> hmm I ran out of black female breadboard wires
[21:39] <t3chguy> but regular transistors are much higher
[21:39] <ThePendulum> AND I HAVE ONE MORE GROUND TO CONNECT D: the humanity
[21:39] <t3chguy> go BLUE
[21:39] * ant_thomas (~ant_thoma@cpc80157-blbn11-2-0-cust244.10-1.cable.virginm.net) Quit (Ping timeout: 255 seconds)
[21:40] * defsdoor (~andy@cpc73037-sutt4-2-0-cust62.19-1.cable.virginm.net) Quit (Ping timeout: 265 seconds)
[21:40] <ThePendulum> probably better than the yellow one I was uing
[21:40] <t3chguy> lol
[21:40] <ThePendulum> wait what's this
[21:40] <ThePendulum> a black one!
[21:40] <t3chguy> xD
[21:40] <ThePendulum> this is lego\ all over again
[21:42] <ThePendulum> nope still flashing
[21:42] <ThePendulum> that was a longer flash right there
[21:42] <ThePendulum> this seems like a timing issue
[21:42] <ThePendulum> mother of god these are bright
[21:42] <t3chguy> that sounds like a power issue then
[21:43] <t3chguy> change the max brightness
[21:44] * TooLmaN (~TooLmaN@mx1.thomsonplastics.com) Quit (Quit: Leaving)
[21:44] <ThePendulum> these things are INSANELY bright
[21:44] <t3chguy> Yep
[21:44] <ThePendulum> and only half of them are on
[21:44] <t3chguy> lol
[21:44] <ThePendulum> yeah, the PSU is giving up on them
[21:44] <t3chguy> thats a good idea
[21:44] <ThePendulum> the last one is yello
[21:44] <t3chguy> try only a few
[21:44] <ThePendulum> yeah
[21:44] <t3chguy> like limit it to like 3
[21:44] <ThePendulum> let me set the length to 10 or so
[21:44] <t3chguy> exactly
[21:44] <t3chguy> that should help with power issues
[21:44] <ThePendulum> help they're staying on
[21:44] <ThePendulum> and they're blinding me
[21:44] <ThePendulum> I can't see anything
[21:45] <ThePendulum> these the kind of LEDs you put in bathroom ceilings man
[21:45] <ThePendulum> bloody
[21:45] <t3chguy> yep
[21:45] <t3chguy> they will push out a lot of heat though
[21:46] <ThePendulum> hmm the config isn't doing anything
[21:46] <ThePendulum> I think I need to turn them off first
[21:46] <t3chguy> lol
[21:46] <ThePendulum> goodness me this is ridiculous
[21:46] * Sisco (Sisco@unaffiliated/sisco) Quit (Ping timeout: 265 seconds)
[21:47] <ThePendulum> the other strip can pack its bags now
[21:47] <ThePendulum> it powers half of them even though I told it to only power 10
[21:47] <t3chguy> oh crap ThePendulum
[21:47] <t3chguy> you reminded me of something
[21:47] <ThePendulum> language!
[21:47] <t3chguy> I don't consider crap a swear
[21:47] <t3chguy> though others might
[21:47] <t3chguy> so touche
[21:47] * Kaweni (~sven@p2003005B4940AB8B900D52DFFD06712E.dip0.t-ipconnect.de) has joined #raspberrypi
[21:47] * dalmatHG (~yaaic@unaffiliated/dalmathg) Quit (Quit: Yaaic - Yet another Android IRC client - http://www.yaaic.org)
[21:48] <t3chguy> I just remembered that I have Neopixels covering the underside of my desk
[21:48] <t3chguy> I've not plugged them in in months xD
[21:48] <ThePendulum> :O
[21:48] <ThePendulum> how do you just forget them
[21:48] * amosko (2f137a02@gateway/web/freenode/ip.47.19.122.2) Quit (Quit: Page closed)
[21:48] <ThePendulum> the wire breadboard wire is hot, not sure if short circuit or massive power draw
[21:48] <t3chguy> They're strips attached to the underside of my desk, they're like a mm thin
[21:48] * nfk|laptop (~nfk@unaffiliated/nfk) Quit (Ping timeout: 250 seconds)
[21:48] <t3chguy> massive power draw
[21:48] <t3chguy> ThePendulum: put multiple wires in parallel to decrease resistance
[21:48] <ThePendulum> hmm good idea
[21:48] <t3chguy> and to spread the current draw
[21:49] <ThePendulum> I can do that on the breadboard, not on the other end for now
[21:49] <t3chguy> or a thicker cable
[21:49] <ThePendulum> I got something setting them to 800khz
[21:50] <ThePendulum> still only half the thing responding
[21:50] <ThePendulum> but at least I got colors now
[21:50] <t3chguy> you sure they're all in series? rather than in 2 "chains"?
[21:50] * grossing (~grossing@pdpc/supporter/silver/grossing) Quit (Ping timeout: 264 seconds)
[21:50] <ThePendulum> hmm you think they stuck two 8×16s together or something?
[21:51] * Coldblackice (~anonz@unaffiliated/coldblackice) has joined #raspberrypi
[21:51] <ThePendulum> nah that doesn't add up
[21:51] * Anodyne (~pi@212-149-205-65.bb.dnainternet.fi) has joined #raspberrypi
[21:51] <ThePendulum> I mean if you then control them from both sides you still don't get anything useful
[21:51] <t3chguy> I've no clue
[21:51] <ThePendulum> if I power them they all flash for a nanosecond
[21:51] <t3chguy> yeah my strips do that too
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[21:51] <ThePendulum> so they're definitely wired together I'd say
[21:51] <t3chguy> weirdly my NeoPixels sticks, individual pixels, and rings don't do that
[21:51] <ThePendulum> no reason for the data wire not to be
[21:52] <ThePendulum> how many of them things do you have :P
[21:52] <ThePendulum> maybe I should hook up the lever shifter again
[21:52] <t3chguy> 4 rings, 2 8pixel "sticks", 3m strip under my desk and 50 individual neopixels
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[21:53] <ThePendulum> I got a 5M 160L WS2801 strip here and a 16ס6 WS2811 grid which I'm working on now
[21:53] <t3chguy> lol
[21:53] <t3chguy> I wonder how much the 16x16 was
[21:53] <ThePendulum> they took it out of the store, not sure
[21:53] <t3chguy> I think I have one in my eBay watch list
[21:53] <ThePendulum> Yeah I don't get it, I spent maybe 60eu on the strip
[21:53] <t3chguy> I do
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[21:53] <t3chguy> £38.99, around $50
[21:53] <ThePendulum> this thing has 100 more LEDs, brighter ones too
[21:53] <ThePendulum> is in a fancy grid
[21:53] <t3chguy> ThePendulum: http://www.ebay.co.uk/itm/331625914378?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
[21:53] <ThePendulum> dad must've spent quite a bit
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[21:54] <ThePendulum> yeah that's basically the exact one
[21:54] <ThePendulum> but WS2811 on this one
[21:54] <t3chguy> flexible, neat
[21:54] <ThePendulum> ... I hope, let me check that
[21:54] <ThePendulum> although it should be the same kind of instruction I think
[21:54] <ThePendulum> oh it's not very flexible
[21:54] <t3chguy> I WAS RIGHT WITH 300mW xD
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[21:54] <ThePendulum> where does it say that
[21:55] <t3chguy> though the description suggests the whole thing uses 300mW, which can't be right
[21:55] <t3chguy> "10 Power: 0.3W ± 0.01%"
[21:55] <ThePendulum> Model: WS2812-pixel screen
[21:55] <ThePendulum> I IC Model: WS2811
[21:55] <ThePendulum> wait what
[21:55] <ThePendulum> then it is the same grid
[21:55] <t3chguy> lol
[21:55] <t3chguy> title is a lie
[21:55] <t3chguy> THE CAKE IS A LIE
[21:55] <ThePendulum> the PCB is definitely not flexible in the sense that you could roll it up though
[21:55] <ThePendulum> but it gives a little
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[21:56] <ThePendulum> if you grab one end it'll support itself
[21:56] <t3chguy> damn
[21:56] <t3chguy> I might have to buy one
[21:56] <ThePendulum> t3chguy: thanks for pointing out the Unicorn HAT uses pin 12
[21:56] <ThePendulum> getting closer now
[21:56] <t3chguy> oh and I also have the UnicornHAT, thats another NeoPixel thing I have
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[21:56] <t3chguy> though I don't use it on a Pi
[21:57] <t3chguy> Pimoroni were nice enough to leave the 3 pins broken out, unfortunately no Data out has been broken out
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[21:58] <t3chguy> looks like my 2nd Pi Zero from Pimoroni won't be here tomorrow as I had hoped
[21:58] <t3chguy> maybe the day after :/
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[22:09] <ThePendulum> t3chguy: does it matter what side you feed these things from?
[22:09] <t3chguy> power no
[22:09] <t3chguy> data, yes
[22:09] <ThePendulum> ahhh!
[22:09] <t3chguy> one side will be Data in
[22:09] <t3chguy> the other is Data out
[22:09] <ThePendulum> yeah, I thouht so
[22:09] <t3chguy> since they are chainable
[22:09] <ThePendulum> *thought
[22:10] <t3chguy> you could put 4 of those 16*16 panels together
[22:10] <t3chguy> for a 32*32 xD
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[22:10] <t3chguy> Cortana: echo [Math calc 16*16*3*20*5]mW
[22:10] <Cortana> 76800 mW
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[22:11] <ThePendulum> hmm yeah which side I power them from doesn't make a difference
[22:11] <ThePendulum> and I can only data them from one side
[22:11] <t3chguy> oh wow ThePendulum, if you set all pixels to 255,255,255 you'll be pulling 80WATTS!
[22:11] <ThePendulum> there should be a verb for data
[22:11] <ThePendulum> t3chguy: u wot
[22:11] <ThePendulum> I only have 50 watts D:
[22:11] <t3chguy> xD
[22:12] <t3chguy> don't set it to full brightness all white then ThePendulum :P
[22:12] <t3chguy> the calculation I did above was (width*height*subPixels*maxCurrentPerChannel*Voltage)mW
[22:12] <t3chguy> maxCurrentPerChannel is in mA
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[22:14] <t3chguy> ThePendulum: s/u wot/You WhAt???!?/
[22:14] <Cortana> t3chguy thinks ThePendulum meant to say “t3chguy: You WhAt???!?”
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[22:14] <t3chguy> actually
[22:14] <t3chguy> I might be breaching some rules
[22:14] <t3chguy> lemme freshed up on channel rules
[22:14] <t3chguy> damn
[22:14] <t3chguy> bye Cortana
[22:15] <t3chguy> Cortana: part
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[22:15] <ThePendulum> t3chguy: if you're gonna correct me, at least say You watt?!!!?!
[22:15] <t3chguy> hah punny
[22:16] <ThePendulum> alright let's wire it up with the level shifter again
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[22:17] <ThePendulum> do they ship thicker breadboard wires
[22:17] <Berg> I thought i had a idea but i was mistaken
[22:18] <t3chguy> lol ThePendulum
[22:18] <t3chguy> get some 10AWG wire
[22:19] <exonormal> I love that size wire
[22:19] <exonormal> soooo hard to bend... lol
[22:19] <t3chguy> its what I use on 1.2kW Car Subwoofer Amplifiers
[22:19] <t3chguy> but then again, that is 100A
[22:19] <exonormal> nice
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[22:21] <exonormal> is it stranded wire?
[22:21] <t3chguy> yeah
[22:21] <t3chguy> thick as heck strands
[22:21] <exonormal> ok... I was thinking of house wiring
[22:21] <exonormal> lol, I know
[22:21] <t3chguy> oh like in-wall wiring?
[22:21] <exonormal> yeah
[22:21] <t3chguy> the stuff that stays in place after bending lol?
[22:21] <exonormal> no strands
[22:21] <t3chguy> oh
[22:21] <exonormal> one solid wire
[22:22] <exonormal> real hard to bend
[22:22] <t3chguy> yeah
[22:22] <t3chguy> thats what I mean, in-wall wire
[22:22] <t3chguy> completely solid, one single thick wire
[22:22] <t3chguy> 3 core
[22:22] <t3chguy> L, N, E
[22:22] <exonormal> soooo hard to bend around the outlet screws...
[22:22] <ThePendulum> I get nothing with the level shifter inbetween
[22:22] <ThePendulum> I must be doing something wrong
[22:23] <t3chguy> ThePendulum: test the level shifter?
[22:23] <t3chguy> got a DMM?
[22:23] <t3chguy> or even an AMM
[22:23] <ThePendulum> I have another
[22:23] <ThePendulum> might swap them over
[22:24] <DexterLB> hmm, I'm trying to communicate with an spi device (the pi is a master). I wrote the following code for testing, using the bcm2835 library: https://bpaste.net/show/ac2249fe0619
[22:24] <DexterLB> this works perfectly, but uses /dev/mem
[22:26] <DexterLB> I wanted to use spidev, and I tried using the spidev python module and using it directly in c with file descriptors, but all I can read are 0xFF's
[22:26] <DexterLB> does anyone have any idea why this may be happening?
[22:26] <ThePendulum> no luck
[22:30] <Berg> data = 0x42
[22:30] <Berg> DexterLB: why are you defining data?
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[22:32] <DexterLB> Berg: because currently my slave device is a microcontroller which reads two bytes, returning 0x56 and the first received byte + 1 (numbers are completely random)
[22:32] <DexterLB> so if I receive 0x56 0x43, I know it's working
[22:36] <ThePendulum> I'm getting some data from the level shifter if I remove the ground from the 1OE pin
[22:36] <t3chguy> ThePendulum: picture of your level shifter?
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[22:37] <ThePendulum> t3chguy: a picture of my actual shifter or the datasheet for it?
[22:37] <ThePendulum> http://www.ti.com/lit/ds/symlink/sn74ahct126.pdf
[22:37] <ThePendulum> page 3 contains a diagram
[22:37] <ThePendulum> https://www.kiwi-electronics.nl/74ahct126-viervoudige-level-shifter-3v-naar-5v
[22:37] <ThePendulum> here's a pic :P
[22:38] <t3chguy> ah
[22:38] <Berg> DexterLB: http://linux-sunxi.org/SPIdev
[22:38] <t3chguy> I prefer mosfet driven bi-directional shifters :P
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[22:40] <DexterLB> Berg: yes, I tried the spidev example, and all I get are all-ones
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[22:48] <ThePendulum> How do I figure out what DMA channel to use?
[22:49] <ThePendulum> I actually see parts of the animation when I replug the power
[22:49] <t3chguy> yeah don't do that ThePendulum
[22:49] <t3chguy> Neopixels getting hot-plugged can fry them
[22:50] <fluffet> anyone here done much LED strip stuff?
[22:50] <t3chguy> its in the Neopixel uberguide
[22:50] <ThePendulum> fluffet: I guess a lot of people here
[22:50] <fluffet> what did you start with? :D
[22:50] <ThePendulum> "my pi is just sitting there, it's doing nothing, I bought it for nothing, I don't know what I was thinking, let's plug some LEDs in"
[22:51] <fluffet> i use my pi all the time since I'm a CS student but I don't know squat about hardware
[22:51] <t3chguy> ThePendulum: I have a Pi2, and a Zero (soon to be 2 Zeros), except I don't even have LEDs plugged into them, they're just sat in a drawer xD
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[22:51] <fluffet> in fact im writing on irc through ssh through my pi :D
[22:51] <fluffet> but i really want to start getting more into hardware
[22:52] <ThePendulum> I got a 160 LED strand 1½ months ago
[22:52] <ThePendulum> then my dad got me a 256 LED grid for christmas
[22:52] <ThePendulum> which I'm trying to get to work now
[22:52] <fluffet> what are you planning to do with it?
[22:52] <fluffet> i was thinking i'd make a huge rgb strip around my desk to color it, but i don't know if that's a good starter project
[22:53] <t3chguy> lol fluffet I have that
[22:54] <t3chguy> currently making rainbow waves around my desk
[22:54] <fluffet> really? was it hard?
[22:54] <fluffet> awesome
[22:54] <t3chguy> each pixel changing colour individually
[22:54] <ThePendulum> fluffet: yeah I was thinking the same around my bed
[22:54] <ThePendulum> I'm writing a remote control for it that turns it into a sort of light synthesizer
[22:54] <ThePendulum> instead of presets you set colors, patterns, movement individually
[22:55] <ThePendulum> lol now only 1 LED is responding
[22:55] <fluffet> well how did you get started with it all?
[22:55] <t3chguy> fluffet: buy WS2812 LEDs
[22:55] <fluffet> did you find some kind of guide on what to purchase, etc?
[22:55] <t3chguy> they have internal controllers
[22:55] <t3chguy> then you can use a Micro or a Pi to run them
[22:55] <ThePendulum> t3chguy: with a Pi I'd rather get a WS2801 no?
[22:55] <t3chguy> with 0 trouble
[22:55] <ThePendulum> heh
[22:55] <fluffet> oh, are they easily adressable?
[22:55] <t3chguy> ThePendulum: I don't use them with Pi's so your ruling
[22:55] <t3chguy> fluffet: yes
[22:56] <fluffet> does it need some kind of external power source/any other cables?
[22:56] <t3chguy> power
[22:56] <ThePendulum> fluffet: there a supposedly timing issues with the WS281x chips
[22:56] <t3chguy> gnd
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[22:56] <t3chguy> and data
[22:56] <ThePendulum> fluffet: yeah you need to power them separately
[22:56] <fluffet> i don't have anything apart from a pi and a chassi
[22:56] <fluffet> alright
[22:56] <ThePendulum> fluffet: got to grab a PSU for it
[22:56] <ThePendulum> I got a 5V 10A PSU which I thought was enough
[22:56] <t3chguy> for a small amount of them, the pi itself should have enough power
[22:56] <ThePendulum> but dad ruined that with his LED grid :D
[22:56] <t3chguy> I have an 850 Watter :P
[22:57] <ThePendulum> nah don't use the Pi itself
[22:57] <ThePendulum> fluffet: I recommend the WS2801 chips to avoid any issues tbh
[22:57] <ThePendulum> it uses a 4th clock pin
[22:57] <fluffet> well i'm not going to use a small amount :D
[22:57] <ThePendulum> the 3 pin layout of the WS281x is not ideal with Pis
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[22:57] <ThePendulum> the timing stutters whenever the Pi stutters and that's not good
[22:58] <fluffet> what do you mean, pi stutter?
[22:58] <t3chguy> well the pi isn't real-time
[22:58] <t3chguy> it does tasks whenever the kernel has time to do them
[22:58] <ThePendulum> iirc if the Pi is processing something it'll slow down the GPIOs
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[22:58] <t3chguy> yes
[22:58] <fluffet> oh, you mean it's some kind of threading issue
[22:58] <t3chguy> unless you install a real-time kernel that is
[22:58] <ThePendulum> that means that you might end up with all kinds of scrambled data if you rely on it for timing
[22:58] <ThePendulum> hence I'd personally go with the WS2801s and use the Pi's clock pin for timing
[22:59] <t3chguy> ThePendulum: the UnicornHAT uses the pin it uses because it hijacks the Audio H/W
[22:59] <ThePendulum> ah :p
[22:59] <t3chguy> which is why it works really well
[22:59] <ThePendulum> well the UnicornHAT seems to be doing just fine
[22:59] <t3chguy> it does mean that the Analog Audio output is sacraficed though
[22:59] <ThePendulum> that's less than ideal
[22:59] <ThePendulum> especially since you often want to use these things to animate music
[22:59] <t3chguy> you still have HDMI Audio out :P
[23:00] <t3chguy> thats why Pixies are great
[23:00] <t3chguy> they use UART
[23:00] <t3chguy> which is a hardware function
[23:00] <t3chguy> so don't require any hackery
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[23:00] <ThePendulum> only 1 LED is responding now :(
[23:00] <t3chguy> :(
[23:00] <ThePendulum> well my speakers don't have HDMI
[23:00] <fluffet> how did you guys learn all this?
[23:00] <fluffet> are you EE students?
[23:00] <fluffet> or just hobbyists
[23:01] <ThePendulum> the electronics for it are fairly simple
[23:01] <t3chguy> fluffet: I am but learnt it before starting studies
[23:01] <ThePendulum> I'm most in it for the programming
[23:01] <fluffet> oh, bachelors or masters?
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[23:01] <ThePendulum> some rudimentary knowledge should do you just fine
[23:01] <fluffet> well, i've only read one course even remotely related to hardware and sensors
[23:02] <fluffet> we did some basic sensor stuff with Motorola 68K assembly
[23:02] <t3chguy> fluffet: ironically, College level, going onto a Comp Sci Masters next year hah
[23:03] <fluffet> college seems to mean a lot of different things :p
[23:03] <fluffet> i don't know since im swedish
[23:03] <t3chguy> Raspberry Pi is British
[23:03] <t3chguy> so British College
[23:03] <ThePendulum> t3chguy: seems like a software issue, it doesn't work directly anymore either
[23:03] <t3chguy> which is pre-University
[23:03] <t3chguy> ThePendulum: thats no good
[23:03] <fluffet> oh, like ages 16-19 or something?
[23:04] <t3chguy> fluffet: correct
[23:04] <fluffet> aha :D
[23:04] <t3chguy> 16-18
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[23:04] <fluffet> ok, it's equivalent to the swedish Gymnasium then
[23:04] <t3chguy> its equivelant to Polish Gymnasium
[23:04] <t3chguy> so probably
[23:05] <fluffet> well that's great :D
[23:05] <fluffet> working sucks, studying is great
[23:05] <Lep2> If i just unplug the power from my pi is not that good right?
[23:05] <fluffet> not if you are writing files
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[23:06] <ThePendulum> Lep2: mwah, probably doesn't hurt too much in practice
[23:06] <t3chguy> not good generally
[23:06] <ThePendulum> Lep2: but if you can shut it down cleanly, please do
[23:06] <t3chguy> but most of the time won't do harm
[23:06] <fluffet> how do you shut down the raspberry cleanly?
[23:06] <ThePendulum> by shutting it down like any other computer
[23:07] <fluffet> i didn't even know you could have the pi plugged in and not turned on
[23:07] <fluffet> mine is always on, so :p
[23:07] <edit_21> evening all
[23:07] <ThePendulum> you can shut it down, you just can't start it up again without replugging it I think :p
[23:07] <ThePendulum> 'lo edit_21
[23:07] <fluffet> oh alright
[23:07] <edit_21> o/
[23:07] <fluffet> i only ever reboot mine, never turn it off
[23:07] <t3chguy> ThePendulum: you can
[23:07] <fluffet> and if i do i just rip the coord out :D
[23:07] <t3chguy> there's a RESET pin on the board
[23:08] <t3chguy> pulling that to Ground is unplugging and replugging :OP
[23:08] <t3chguy> :P *
[23:08] <Lep2> The pi just runs a python script that checks 6 gpio inputs so no writing
[23:08] <ThePendulum> nope reboot didn't help
[23:08] <fluffet> yeah then you should be fine i think
[23:08] <Lep2> It is a musi cp
[23:08] <Lep2> music project *
[23:08] <ThePendulum> t3chguy: pfleh :P
[23:09] <Lep2> I had to get a usb soundcard for it, that 3,5 jack is bad and zzzzzzz static sound
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[23:10] <Lep2> just need to find a way to keep it at 100% volume when reboot, if i plug and unplug it goes to like 40 % volume
[23:10] <fluffet> that should be easy
[23:12] <t3chguy> Lep2: you can get DACs that sit on the GPIO you know :P
[23:12] <ThePendulum> THEY'RE ALL ON!
[23:12] <ThePendulum> But the animation is completely rekt
[23:13] <ThePendulum> at least I assume this is not the desired animation
[23:14] <fluffet> Lep2: you can use the amixer command in the terminal to set volume i think
[23:14] <fluffet> then just put that in a script that runs at startup
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[23:14] <fluffet> ThePendulum: is there some sort of library for animations?
[23:15] <Lep2> i see yeah i look into it ty
[23:16] <t3chguy> fluffet: Adafruit GTF
[23:16] <t3chguy> GFX*
[23:17] <ThePendulum> err the filesystem is read only suddenly
[23:17] <ThePendulum> that's not good
[23:17] <fluffet> lol what are you doing :D
[23:17] <ThePendulum> t3chguy: isn't that for display more than LED strips?
[23:17] <ThePendulum> fluffet: I personally am a Node programmer so I don't use the Python and C libraries too much, but there are a bunch
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[23:18] <fluffet> really?
[23:18] <ThePendulum> I actually only use an SPI library, I do all the animations myself
[23:18] <ThePendulum> that's the fun part for me :p
[23:18] <t3chguy> ThePendulum: works with LED Matrices too
[23:18] <t3chguy> ThePendulum: Woo for Node!
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[23:20] <ThePendulum> ^_^
[23:20] <ThePendulum> damn
[23:20] <ThePendulum> whenever I run the Python file and exit it
[23:20] <ThePendulum> the entire filesystem becomes read only
[23:21] <fluffet> what python file is that then?
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[23:31] <fluffet> so like
[23:32] <fluffet> can these WS2801 be shortened if needed?
[23:32] <t3chguy> yes fluffet
[23:32] <t3chguy> any multiple of 1 is valid
[23:32] <t3chguy> they are completely modular
[23:32] <t3chguy> each one has Vcc, GND, DIN, DOUT
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[23:33] <fluffet> oh, so the signal propagates through all the leds at once? since you only plug in the first one
[23:33] <fluffet> and then the one with the right ID or whatever snaps up the information?
[23:33] <t3chguy> each one passes on the data that it doesn't need
[23:33] <fluffet> exactly
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[23:34] <t3chguy> its a very strictly timed asynchronous protocol
[23:34] <t3chguy> deviation will break it
[23:34] <ThePendulum> fluffet: I don't think they have IDs per se; they just use the first few bytes of data and pass on the rest; the next chip does the same
[23:34] <ThePendulum> not sure though
[23:34] <t3chguy> each pixel accepts 3 bytes, and passes everything else further
[23:34] <fluffet> oh okay
[23:34] <t3chguy> they can be addressed as their order in the string though
[23:35] <t3chguy> so you can see that as an ID
[23:35] <t3chguy> but they don't have Unique Identifiers
[23:35] <ThePendulum> yeah, that's a virtual ID so to say
[23:35] <ThePendulum> but you can't control just 1 LED without passing a value for the others
[23:35] <ThePendulum> be that the previous value or off
[23:35] <t3chguy> that I'm not sure about
[23:35] <fluffet> are there "clamps" or whatever, because for my project i think i need about 3.5 meters of strip
[23:35] <ThePendulum> t3chguy: afaik there's no data chunk dedicated to a LED
[23:35] <t3chguy> fluffet: most strips come with adhesive backing
[23:36] <fluffet> ok, great
[23:36] <t3chguy> ThePendulum: I'm just wondering whether there's a communique sequence that describes "no change"
[23:36] <fluffet> so then the policy is: buy a longer strip than you think you will need
[23:36] <t3chguy> I should dig through the Adafruit library
[23:36] <ThePendulum> t3chguy: hmm good one, I don't think so
[23:36] <fluffet> and then just cut away the extra?
[23:36] <t3chguy> yep fluffet, can cut it at any point
[23:36] <t3chguy> well, except half of a neopixel
[23:36] <ThePendulum> t3chguy: unless the SPI module I'm using does that
[23:36] <fluffet> that's neat
[23:36] <fluffet> What about heat generation?
[23:36] <ThePendulum> I'm literally just passing a series of RGB values
[23:36] <fluffet> a curtain i have collides with my desk
[23:36] <t3chguy> fluffet: they dissipate 300mW at full brightness White
[23:36] <fluffet> but i would still want leds there
[23:36] <t3chguy> but they are VERY bright
[23:37] <ThePendulum> fluffet: they won't get hot enough to ignite anything in your room
[23:37] <ThePendulum> they do get quite warm though
[23:37] <t3chguy> they will get hot enough to damage themselves if you leave them on full white and have a high density of them
[23:37] <ThePendulum> especially on a coil :P
[23:37] <t3chguy> you can get various density strips
[23:37] <t3chguy> 30/m, 60/m, 120/m etc
[23:37] <ThePendulum> yeah, I need to take them off the coil soon
[23:37] <fluffet> should i get the ones with the plastic hosing then?
[23:37] <fluffet> for heat dissipation
[23:38] <ThePendulum> t3chguy: surely they shouldn't be able to damage themselves if the strip is unrolled?
[23:38] <t3chguy> fluffet: the plastic housing will act more as an insulator
[23:38] <t3chguy> ThePendulum: on a strip, where they have the sides as breathing room
[23:38] <t3chguy> on a solid PCB like the Unicorn, not sure
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[23:38] <t3chguy> fluffet: as it'll trap the air in, its more like a cavity wall
[23:38] <ThePendulum> I have P67 waterproofing around mine
[23:39] <ThePendulum> they don't seem to get hot enough to damage themselves really
[23:39] <fluffet> what "density" is good enough for desk lighting then you think?
[23:39] <ThePendulum> but then again, they're not nearly as bright as these things I got here
[23:39] <fluffet> is 30 per meter enough?
[23:39] <t3chguy> fluffet: I use 30/m I think
[23:39] <ThePendulum> fluffet: yeah, out of sight 30/m is plenty
[23:39] <t3chguy> its enough, the more you go the more resolution you have
[23:39] <t3chguy> so you can make REALLY smooth animated rainbow stripes with 120/m for example
[23:39] <fluffet> hm that is true
[23:39] <t3chguy> with 30/m its nice, but if its ran slowly, a little jaggedy
[23:39] <ThePendulum> at 3 meters yo don't need a higher resolution really
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[23:40] <ThePendulum> it's enough for convincing ambilight
[23:40] <fluffet> yeah i think they are going to be pointed the other way
[23:40] <fluffet> like at my wall
[23:41] <fluffet> my wall is white so i think that'll reflect nicely, in a smooth way
[23:41] <ThePendulum> yeah, I personally don't see the point of anything above 30/m for decorative lighting
[23:41] <t3chguy> the dispertion will make it look higher density than it is anyway
[23:41] <fluffet> then i'll stick with that then
[23:41] <ThePendulum> unless you need more brightness or so
[23:41] <fluffet> yeah exactly
[23:41] <ThePendulum> I must have a picture of mine somewhere
[23:41] <fluffet> okay, so, if you cut, is it easy to reattach?
[23:42] <ThePendulum> you solder them back together
[23:42] <fluffet> alright :p
[23:42] <fluffet> i guess i'll start with a long strip then and just work my way down until i am happy with the size
[23:42] <fluffet> i dont have a solderer
[23:42] <ThePendulum> if you're planning on that you'll want them without waterproofing of course :P
[23:42] <fluffet> okay, so i need like a 4 meter strip and a power supply then
[23:43] <fluffet> ?
[23:43] <ThePendulum> length depends on the circumference of your desk :P
[23:43] <fluffet> yep
[23:43] <fluffet> i'm only doing the backside of it
[23:43] <ThePendulum> you have a 4 meter desk?
[23:43] <fluffet> it's a cornered desk
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[23:43] <fluffet> with a round cutout part where you put the keyboard
[23:43] <pigrit> la di dah
[23:44] <fluffet> so i plan on doing it around both "back sides" which would be 4 meters if not more
[23:44] <ThePendulum> fluffet: this is mine http://i.imgur.com/oS14tmj.jpg
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[23:48] <fluffet> is the default size for these like 5 meters?
[23:48] <fluffet> or am i retarded
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[23:48] <ThePendulum> many are 5 meters
[23:49] <ThePendulum> fluffet: I think they're manufactured at 1M though
[23:49] <ThePendulum> the strip I have is literally 5× 1M soldered together
[23:49] <ThePendulum> and shoved in P67 waterproving
[23:49] <fluffet> https://www.m.nu/dotstar-apa102-digital-strip-black-meter-black-p-1799.html
[23:49] <fluffet> I guess i'm getting this then
[23:49] <fluffet> DotStar is what i need for not controlled by clock speed right?
[23:50] <ThePendulum> hmm let me see
[23:50] <ThePendulum> not familiar with the APAs myself
[23:50] <ThePendulum> but yeah, 4 pin, that's a good sign
[23:50] <ThePendulum> that means it can use the Pi's clock pin
[23:50] <ThePendulum> "Because the clock and data is seperated, you can use any processor speed or type to control these strips, and you don't have to worry about being careful with the timing"
[23:51] <fluffet> great
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[23:53] <JakeSays> how do i deactivate the swap file?
[23:53] <ThePendulum> fluffet: https://github.com/tinue/APA102_Pi
[23:53] <ThePendulum> fluffet: and there's yer library for that chip
[23:54] <JakeSays> er, actually what i need is to reduce the cache memory
[23:54] <ThePendulum> fluffet: I'd honestly get a 20A power supply. Might be a bit more expensive, but at least you have some breathing room
[23:55] <ThePendulum> fluffet: and I'd try to find one with a proper plug, I got one of those OEM ones you're supposed to build into a machine
[23:55] <ThePendulum> the 230V is in the open :D
[23:56] <fluffet> JakeSays: why? :o
[23:56] <fluffet> if you run out of ram with a deactivated swap file bad things happen
[23:56] <JakeSays> yeah n/m. was thinking crazy
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[23:57] <JakeSays> i'm trying to build efl
[23:57] <wili> hey anyone tried https://github.com/Fornoth/spotify-connect-web ?
[23:58] <fluffet> efl?
[23:58] <JakeSays> enlightenment foundation library
[23:58] <JakeSays> i want to use it as a ui library
[23:58] <JakeSays> since it appears to work with a framebuffer

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