#raspberrypi IRC Log

Index

IRC Log for 2017-04-22

Timestamps are in GMT/BST.

[0:00] <polprog> there are gpio pins 8 and 10 for rx and tx respectively
[0:00] <jarshvor> cool
[0:00] <jarshvor> cheap from usual far east slow boat?
[0:01] <jarshvor> seems like it. =) will order one so soon
[0:01] <jarshvor> thanks for the tip!
[0:02] <polprog> you just hook up a ttl lever rs232 (aka uart in this case) and open screen or minicom on the laptop
[0:02] <jarshvor> ahh wait.. is this just a level converter?
[0:02] <jarshvor> 5>3.3?
[0:03] <jarshvor> logic converter?
[0:03] <polprog> no, an usb-uart converter
[0:03] <jarshvor> hmm ok
[0:03] <polprog> but if you try to hook it up to a COM port on a PC you need a level converter like max232
[0:03] <polprog> or a ready module
[0:03] * TheSin (~TheSin@d108-181-59-119.abhsia.telus.net) has joined #raspberrypi
[0:03] <jarshvor> gotcha
[0:04] <jarshvor> will try it out! ;)
[0:04] <jarshvor> anyway.. im off. thanks again for the help. hopefully itll get it fixed son
[0:04] <jarshvor> son*
[0:04] <jarshvor> soon*
[0:04] <polprog> like this one, literally every one will have the ch430 or ft232rl chip
[0:04] <polprog> https://www.amazon.com/Module-Serial-Converter-Adapter-CH340G/dp/B00W74BTK2
[0:04] <polprog> youre welcome :)
[0:04] * chartreuse (~chartreus@node-1w7jr9y881r277rp4g0c4jazs.ipv6.telus.net) has joined #raspberrypi
[0:04] <polprog> also, the channel for arch on arm is #archlinux-arm
[0:05] <jarshvor> https://es.aliexpress.com/store/product/PL2303HX-USB-To-TTL-RS232-Serial-Port-Adapter-Cable-Module-PL2303-Console-Recovery-Upgrade-For-Circuit/1381141_32705679569.html?spm=2114.04010208.3.187.fsk2Yb&ws_ab_test=searchweb0_0,searchweb201602_4_10152_10065_10151_10068_10136_10137_10060_10138_10155_10062_10156_10154_10056_10055_10054_10059_10099_10103_10102_10096_10148_10147_10109_10052_10053_10142_10107_
[0:05] <jarshvor> 10050_10051_10084_10083_10080_10082_10081_10110_10111_10176_10112_10113_10114_10181_10078_10079_10073_10070_10123_10124,searchweb201603_10,afswitch_1,ppcSwitch_4&btsid=9fbbfc97-3988-450c-9326-e6e74c82ef5f&algo_expid=ae36d02c-3ffc-47f9-9645-cc87708c90ca-21&algo_pvid=ae36d02c-3ffc-47f9-9645-cc87708c90ca
[0:05] <jarshvor> what about this one..
[0:05] <jarshvor> damm.. long link. sorry
[0:05] <jarshvor> ?
[0:05] * taza (~taza@unaffiliated/taza) Quit ()
[0:06] <jarshvor> https://es.aliexpress.com/store/product/PL2303HX-USB-To-TTL-RS232-Serial-Port-Adapter-Cable-Module-PL2303-Console-Recovery-Upgrade-For-Circuit/1381141_32705679569.html
[0:07] <polprog> this will probably do
[0:07] <jarshvor> cool ;)
[0:07] <polprog> they all hook up to /dev/ttyUSBx as long as your kernel supports the driver
[0:08] <polprog> i persobally use bus pirate but its more of a general electronic debugger
[0:08] <polprog> it just has uart bridge mode
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[0:55] <redrabbit> jarshvor: https://es.aliexpress.com/w/wholesale-uart.html?initiative_id=SB_20170421145536&site=esp&groupsort=1&SortType=total_tranpro_desc&g=y&SearchText=uart
[0:56] <redrabbit> theses are more popular
[0:58] * IT_Sean (~quassel@applefritter/IRCStaff) Quit (Remote host closed the connection)
[0:59] <Valduare> hey guys
[0:59] <Valduare> are 3528 rgb leds the addressable ones?
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[1:04] * vstehle (~vstehle@rqp06-1-88-178-86-202.fbx.proxad.net) Quit (Ping timeout: 260 seconds)
[1:04] <EvilDMP> Although my Raspberry Pi is available at its .local address, it's not advertising itself for SSH access using ZeroConf (though it does for AFP access, for example). What do I need to configure?
[1:08] <EvilDMP> ah, /etc/avahi/services/sshd.service
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[1:11] <methuzla> Valduare: probably. i think numbering relates to chip size.
[1:12] <methuzla> or guess i should say maybe.
[1:13] <methuzla> no other info?
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[1:15] <jarshvor> thanks redrabbit !
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[3:10] <ap4lmtree> hi
[3:10] <ap4lmtree> raspb 3 is 32 bit right
[3:10] <ap4lmtree> is there going to be a new rasb anytime soon?
[3:11] <mfa298> 3a is due out soon (ish)
[3:11] <phil42> the software is 32 bit, pi 3 is 64 bit hardware
[3:11] <mfa298> anything >3 is at least a year off
[3:12] <ap4lmtree> my pi 3 is arm71
[3:12] <ap4lmtree> so it is 32 bit
[3:12] <ap4lmtree> did i install the wrong rasbian?
[3:12] <phil42> but it doesn't have enough memory to take advantage of it's 64bittiness
[3:12] <phil42> no, you did not install the wrong raspbian
[3:13] <binaryhermit> No version of raspbian supports armv8 other than through its backwards compatibility with armv7.
[3:13] <binaryhermit> But the hardware is armv8
[3:13] <ap4lmtree> oh okay
[3:13] <ap4lmtree> thanks
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[3:14] <phil42> who knows what 64 bit os is available for pi 3?
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[3:16] <phil42> not netbsd
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[3:30] <Pyro_Killer> Hello ladies and gentlemen, is it sanctioned to discuss other ARM based SoC's and technology related to it here?
[3:33] * brainwash (~tuturu@unaffiliated/brainwash) Quit (Ping timeout: 240 seconds)
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[3:36] <phil42> there are channels for the other boards and software
[3:36] <phil42> but i would not object if they were mentioned here
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[3:41] <Pyro_Killer> I'm looking at a NanoPI NEO air, and it has no wire ethernet, only wireless, no hdmi and no USB
[3:41] <cnnx> what do you guys think of this
[3:42] <cnnx> https://www.piborg.org/diddyborg
[3:42] * D4R5C0D3 (~DARSCODE@5ED1F35E.cm-7-2d.dynamic.ziggo.nl) has joined #raspberrypi
[3:42] <Pyro_Killer> so to make it connect to wifi you need to connect via UART, now I know many other boards have similar capabilities, and I've connected over serial before
[3:42] <Pyro_Killer> but how does it usually go, you just set the baud and it drops a shell, how doe sit work
[3:43] <cnnx> i own a novatel u679 bell mobile internet usb stick, anyone know if this ceullular modem works with raspbian?
[3:46] <Pyro_Killer> sorry about my spelling, I'm used to being able to edit after posting
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[3:49] <Armand> cnnx: AA batteries ?!?!
[3:50] * batch__ (~batch@unaffiliated/batch) Quit (Quit: Leaving)
[3:50] <cnnx> Armand: i know whats up with that
[3:50] <cnnx> are they recheargable at least? i would prefer a li-ion
[3:50] <cnnx> or sla
[3:50] <cnnx> Armand: can you show me a better rpi rover?
[3:50] <BurtyB> Pyro_Killer, it has USB - if you use armbian you get a serial console (USB gadget) or you can use the uart. either way you get a login prompt
[3:51] <cnnx> Armand: are you the same Armand from ##hardware?
[3:51] <Armand> Indeedy, dudey.
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[3:51] <Armand> cnnx> Armand: can you show me a better rpi rover? < No.
[3:52] <cnnx> ok
[3:52] <Armand> Just don't see why anyone would use AA.
[3:52] <cnnx> its the only one out there
[3:52] <Armand> 18650s are much better.
[3:52] <cnnx> unless you make your own
[3:52] <cnnx> whats 18650?
[3:52] <cnnx> lio-ion baqttery
[3:52] <cnnx> 3.6v
[3:53] <cnnx> can i make 12v out of a bunch of them?>
[3:53] <cnnx> like 4 x 3.6v
[3:53] <Armand> Yarp.. series
[3:53] <Pyro_Killer> I mean, you could mod it for 10$ and make it rechargeable over usb...
[3:53] <cnnx> and inrease the amp in parallel
[3:54] <cnnx> my robot always uses heavy sla... is this the way to go?
[3:54] <Armand> http://gallery.baked-pi.co.uk/index.php/The-18650-project
[3:54] <cnnx> for like 10-20ah?
[3:54] <cnnx> looks like i need a lot
[3:54] <Armand> Pyro_Killer: Barely $5, if you've already got tools.
[3:54] <cnnx> are 18650 the best li-ion rechareables?
[3:54] <Pyro_Killer> You have to get a recharging circuit, and maybe even a cable
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[3:55] <Armand> Pyro_Killer: Yeah, those are stupid-cheap.
[3:55] <Armand> lolz cheap
[3:55] <cnnx> https://www.amazon.ca/UltraFire-3000mAh-Rechargeable-Battery-Charger/dp/B0084TECHG
[3:55] <cnnx> why would anyone by SLA
[3:55] <cnnx> if this exists
[3:55] <Pyro_Killer> Sorry, I don't live in America so my pricing view is skewed
[3:56] <Armand> LOL
[3:56] <Armand> opps, caps
[3:56] <Armand> Neither do I.. but I need to have a good idea of relative costs.
[3:58] <cnnx> is li-ion dangerous like lipo?
[3:58] <Pyro_Killer> not as dangerous
[3:58] <cnnx> what happens to a thinkpad 9 cell battery pack if put in the trash and they put it in the truck?
[3:58] <cnnx> does it explode when crushed?
[3:59] <Pyro_Killer> meh, I burned a li-ion it went fine
[3:59] <cnnx> lol
[3:59] <cnnx> ok
[3:59] * batch__ (~batch@unaffiliated/batch) Quit (Quit: Leaving)
[3:59] * Pyro_Killer was banned
[3:59] <cnnx> im considering replacing the heavy sla for my robot with someone light like this
[3:59] <cnnx> https://www.amazon.ca/Rechargeable-Lithium-Battery-spotlight-Amplifier/dp/B01M0T3N9B/ref=sr_1_sc_3?s=electronics&ie=UTF8&qid=1492826231&sr=1-3-spell&keywords=12vdc+li-ion+rechareable+battery
[3:59] <Armand> cnnx: No.. they burn, not explode
[4:00] <Armand> They brun VERY hot
[4:00] <Armand> Burn*
[4:00] <cnnx> but will the truck be in danger?
[4:00] <Armand> Yes
[4:00] <cnnx> ok i'll remove it from my trash then
[4:00] <Armand> I recycle laptop batteries
[4:00] <cnnx> i need to find it
[4:00] <cnnx> now its dark
[4:00] <cnnx> ill go look tomorow
[4:00] <Armand> lol
[4:01] <tristero> lipo and li-ion are the same thing these days. 18650s have hard casings instead of soft foil
[4:01] <Pyro_Killer> I mean, purely from an environmental standpoint its not a good idea, when I opened mine there was some nasty stuff in there, better to recycle
[4:01] <Armand> I've got over 60 18650 cells
[4:02] * chra94 (~chra94@unaffiliated/chra94) has joined #raspberrypi
[4:03] <cnnx> why is this 18650 battery 850$ ?
[4:03] <cnnx> https://www.amazon.ca/Customized-lithium-rechargeable-battery-li-ion/dp/B01LY0PIZP/ref=sr_1_4?s=electronics&ie=UTF8&qid=1492826560&sr=1-4&keywords=12vdc+li-ion+rechargeable+battery
[4:03] * brainwash (~tuturu@unaffiliated/brainwash) Quit (Ping timeout: 240 seconds)
[4:03] <cnnx> 27AH
[4:03] <cnnx> but so expensive
[4:03] <cnnx> its only 2lbs
[4:03] * miha_S7_ (~miha_s7@0891057245.static.corbina.ru) Quit (Ping timeout: 255 seconds)
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[4:05] <Armand> That's very overpriced
[4:05] <Armand> 24 cells
[4:05] * RajRajRaj (uid72176@gateway/web/irccloud.com/x-gksdngjghajopgvn) Quit (Quit: Connection closed for inactivity)
[4:05] <Pyro_Killer> I thought the same thing, that's steep
[4:06] <Armand> It would probably cost about 1/8th or less to make it. :P
[4:06] <Armand> Not sure on Canadia dollars.
[4:07] <cnnx> Armand: i just went outside in the rain and dark
[4:07] <cnnx> i cant find the battery pack
[4:07] <cnnx> it might be in the recycling bin
[4:08] * petn-randall (~petn-rand@azuma.rocketjump.eu) Quit (Quit: Reconnecting)
[4:08] * sir_galahad_ad (~aaron@cpe-76-179-65-199.maine.res.rr.com) Quit (Read error: Connection reset by peer)
[4:09] <Armand> cnnx: I was playing around with the laptop packs before I ripped them apart.
[4:09] <cnnx> cool
[4:10] <Armand> All of them failed to charge and I found it was just one or two cells that had dropped below minimum.. so the controller was refusing to charge the pack.
[4:10] <Armand> Boosted the low ones... pack starts charging. :P
[4:12] * plugwash (~plugwash@2a02:c7f:ba49:1500::2) Quit (Remote host closed the connection)
[4:13] <cnnx> Armand: remember the 27.2AH 850$cad battery pack?
[4:14] <Armand> yarp
[4:14] <cnnx> on amazon.com i found a 12VDC 20AH li-ion battery pack for 59$USD+free shipping lol
[4:14] <cnnx> https://www.amazon.com/20000mAh-Rechargeable-Portable-Lithium-ion-Battery/dp/B00YK6DO80
[4:14] <cnnx> with charger
[4:14] <Pyro_Killer> Thank you for your help, it's bedtime
[4:14] <cnnx> think im gonna order that for my next project
[4:14] * Pyro_Killer (~chatzilla@ti0038a400-2260.bb.online.no) Quit (Quit: ChatZilla 0.9.93 [Firefox 53.0/20170413192749])
[4:14] <Armand> :)
[4:15] * Strife89 (~quassel@adsl-98-67-57-24.mcn.bellsouth.net) has joined #raspberrypi
[4:15] <cnnx> dont think htey will ship that to canada
[4:15] <cnnx> customs will detect it
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[5:40] * irc_smirk (17f24bdb@gateway/web/freenode/ip.23.242.75.219) has joined #raspberrypi
[5:40] <irc_smirk> hello everyone!
[5:40] <irc_smirk> i wanted to try out opencv on raspberry pi... is it fast enough for real time video proessing? (adding filters)
[5:43] <irc_smirk> anyone using opencv?
[5:43] * Elronnd is now known as back
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[5:43] * back is now known as Elronnd
[5:46] * djk (~Thunderbi@pool-96-242-161-153.nwrknj.fios.verizon.net) Quit (Quit: djk)
[5:48] <ball> hello irc_smirk
[5:49] <hmoney> ello
[5:50] * ball (~ball@99-100-253-3.lightspeed.cicril.sbcglobal.net) Quit (Quit: leaving)
[5:55] <swift110> hey all
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[6:03] * dirtyroshi (~dirtyrosh@unaffiliated/dirtyroshi) Quit (Quit: Leaving)
[6:05] <irc_smirk> hello
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[6:34] <irc_smirk> sup. anyone awake?
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[6:35] * Gathis (~TheBlack@unaffiliated/gathis) Quit (Read error: Connection reset by peer)
[6:35] <m8377> Anyone know how taxing i2C oled displays are on th pi3's CPU?
[6:35] * An_Onion (~Anorion@unaffiliated/saidinunleashed) Quit (Ping timeout: 255 seconds)
[6:36] <methuzla> depends on whats driving it, software-wise
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[6:43] <m8377> methuzla: I was probably just going to use Adafruit_Python_SSD1306 to run 5x displays. Just need to know how much overhead to plan for.
[6:44] * exotime (~exotime@gateway/tor-sasl/exotime) Quit (Remote host closed the connection)
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[6:45] <methuzla> your bottleneck will be i2c, not the cpu
[6:46] <methuzla> also, does display have ability to set 5x addresses?
[6:46] * Viper168_ is now known as Viper168
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[7:02] * miha_S7_ (~miha_s7@0891057245.static.corbina.ru) Quit (Ping timeout: 240 seconds)
[7:04] <m8377> methuzla: I can get 5 unique addresses. My issue is that if anything causes the Pi to lock up or to pause it will have big problems. It's talking to a high speed 3d printer, so a momentary blip means the print will have a tremor.
[7:11] * wuseman (~wuziduzi@unaffiliated/wuseman) Quit (Ping timeout: 260 seconds)
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[7:17] * Elronnd is now known as idiom
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[7:17] * elronnd is now known as Elronnd
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[7:25] <sware> can anyone direct me to some better documentation for mmal? the examples are limited and the my project page is laughable. Whoever made it didn't even write their own code to work
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[7:52] * funkster (a2c37452@gateway/web/freenode/ip.162.195.116.82) has joined #raspberrypi
[7:53] <funkster> anyone aware of a usb camera with similar quality/size of RPI v2?
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[8:00] * mawnkey (~quassel@c-69-247-120-180.hsd1.ms.comcast.net) Quit (Remote host closed the connection)
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[8:20] * willy23123 (~willy2312@51-171-151-33-dynamic.agg2.lky.bge-rtd.eircom.net) Quit (Quit: Colloquy for iPhone - http://colloquy.mobi)
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[12:36] <strixUK> at last... my pi has finally arrived... took long enough (thanks, royal mail)
[12:39] <trask> great strix :)
[12:39] * elsevero (~elsevero@79.119.2.93) Quit (Quit: elsevero)
[12:40] <trask> figure a few wires and ur ready to run the OS?
[12:41] <strixUK> this'll be a headless install, so slightly more complicated
[12:41] <strixUK> currently dumping the supplied NOOB SD
[12:42] <strixUK> then will write a raspbian jessie lite image on which i've put the magic 'ssh' file in /boot
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[12:42] <strixUK> _hopefully_, it'll be a case of plug in, wait for it to boot, find the IP on the router and shell in
[12:43] <trask> atleast its fairly quick to determine if it works or not lol
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[12:49] <Sonny_Jim> strixUK: Enable ssh by writing a file
[12:49] <Sonny_Jim> called, unsurprisingly, ssh
[12:49] <strixUK> already done
[12:50] <Sonny_Jim> should be good to go then
[12:50] <strixUK> image writing now
[12:50] <Sonny_Jim> ssh raspberry.local or something like that
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[12:50] <strixUK> i doubt i shall ever need or want the stock image, but it's worth having a copy of just in case
[12:50] <Sonny_Jim> Can't remember what git repo I was using for rtlsdr stuff
[12:50] * Cy-Gor (~IceChat9@cpe-70-113-61-29.austin.res.rr.com) has joined #raspberrypi
[12:50] <Sonny_Jim> Personally, I would go with rasbian lite
[12:50] <Sonny_Jim> Too much junk in the other one
[12:51] <strixUK> precisely, and that's what i've selected
[12:51] <strixUK> how would raspberry.local work? what's going to resolve that name?
[12:51] <Sonny_Jim> avahi I think
[12:52] <Sonny_Jim> I dunno, I rarely use it, just look it up on the DHCP page
[12:53] <strixUK> that's what i was going to do
[12:53] <strixUK> 1st job, get wireless set up. 2nd job, tell the router to make its IP static.
[12:53] <strixUK> then maybe fool around with hostname and username, ssh keys and all that.
[12:57] <strixUK> seems to be booting/booted, no link yet
[12:59] <humbot> always exciting :D
[13:00] <strixUK> ah, router side of ethernet cable not seated properly (it's lost its retention clip)
[13:00] <strixUK> aaand there it is.
[13:00] <strixUK> amazingly, raspberrypi.local actually works ;)
[13:02] <strixUK> is there anything special i should do with raspbian when it boots for the first time, any particular set up?
[13:03] <mfa298> change the pi password (or make a new user and delete/disable the pi user)
[13:03] <mfa298> set a differnt hostname (useful if you might get a 2nd pi)
[13:03] <mfa298> install updates (apt-get update && apt-get upgrade)
[13:04] * metawave (~metawave@47.156.227.208) Quit (Ping timeout: 260 seconds)
[13:04] <mfa298> then install stuff and play (what you install and what you do depends on what you want to acheive)
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[13:06] <strixUK> so just the usual stuff, thanks :)
[13:07] <strixUK> mfa298: you weren't at the CL by any chance, were you?
[13:10] <mfa298> not knowing what you mean by CL probably not.
[13:11] <strixUK> i guess not ;) i mean the CU Computer Lab
[13:12] * dreamon (~dreamon@unaffiliated/dreamon) Quit (Ping timeout: 260 seconds)
[13:13] <strixUK> last time i saw/tried a pi, the shell seemed painfully slow. this feels indistinguishable, at the shell level at least, from a VM
[13:13] <mfa298> No, I know a few other Cambridge people from other IRC channels, but not a Cambridge person myself.
[13:14] <mfa298> The pi1 could be a bit slugish - although I've not found it too bad for most shell stuff over SSH
[13:14] <mfa298> the Pi3 is a pretty decent bit of hardware to do work on.
[13:14] <oq> I never experienced any slowness via ssh on a pi1
[13:16] <Sonny_Jim> Does it take a while to log in?
[13:16] <strixUK> so it seems!
[13:16] <Sonny_Jim> Or just in general
[13:16] * drjam (~drjam@c122-108-230-17.ipswc3.qld.optusnet.com.au) Quit (Quit: Leaving)
[13:16] <strixUK> no, this is snappy as anything, that was my menaing. years ago, so probably a pi1, i derek mccauley was showing me the music stuff he was doing on a pi. i don't recall if that was ssh or console. ssh, i think.
[13:17] <strixUK> a pi1 at console might have been okay, but the encryption overhead of ssh might have been observable
[13:17] <EvilDMP> Would a Rapsberry Pi Zero with a https://www.ebay.co.uk/p/?iid=152488691322&&&adgroupid=44594567914&rlsatarget=pla-298926477009&abcId=1088856&adtype=pla&merchantid=113798106&poi=&googleloc=1007416&device=c&campaignid=805978797&crdt=0&chn=ps external USB DVD drive function as an adequate DVD player?
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[13:20] <strixUK> what _exactly_ does 'wait for network on boot' do? which network? does it look for link on eth0, or just some ip address?
[13:22] <Sonny_Jim> It's ronseal
[13:22] <Sonny_Jim> Waits for a network interface to come up before proceeding
[13:22] <Sonny_Jim> I don't think it cares if it's wlan0 or eth0
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[13:22] <strixUK> i'll have a fish around inside to see if i can find out what it does
[13:23] <strixUK> provided ntpdate booting through without network doesn't mean that ntpdate or whatever runs before the network is up, i guess it doesn't matter
[13:25] * SopaXorzTaker (~SopaXorzT@unaffiliated/sopaxorztaker) Quit (Remote host closed the connection)
[13:26] <Sonny_Jim> There should be a dependancy on the ntp init script to wait for a network
[13:26] <Sonny_Jim> So I think even with the 'wait for network' switch set to off, it'll still not start ntp before it sees a network
[13:28] <ShorTie> how can i get a count of how many nic's i have ??
[13:29] <strixUK> ShorTie: try ifconfig -a
[13:29] <Habbie> ShorTie, 'ip link' is a good start
[13:29] <Habbie> or that
[13:29] <strixUK> that should show all interfaces, including those that are down
[13:29] <strixUK> Habbie: didn't know about 'ip link' :)
[13:30] <ShorTie> don't have ifconfig, needs to be system based
[13:30] <strixUK> what do you mean 'system based'
[13:30] <strixUK> Sonny_Jim: re ntp, figures, thanks
[13:30] <ShorTie> like /dev/nic
[13:30] <Habbie> ShorTie, nics tend not to have entries in /dev
[13:30] <Habbie> ShorTie, but what problem are you trying to solve?
[13:31] <ShorTie> ya, i know that, that twas an example
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[13:32] <ShorTie> trying to figure out how many nic's i have so i can sort them by mac and make my own udev rule
[13:33] <Habbie> that doesn't explain why ifconfig -a or ip link won't work for you
[13:34] <ShorTie> because this is a custom LFS install not a regular debian based os
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[13:34] <Habbie> how do you configure network if you don't have ip or ifconfig?
[13:35] <ShorTie> by the rest of the firewall .. :/~
[13:35] <Habbie> ?
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[13:36] <ShorTie> trying to get http://www.smoothwall.org/ to run on a pi
[13:38] <ShorTie> it's a Linux From Scratch firewall/router
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[13:44] <oq> ShorTie: don't you need 2 nics for a router
[13:44] <ShorTie> ya, atleast
[13:44] <Habbie> or a switch with vlan tagging support
[13:44] <Habbie> also my single-nic pi is my v6 router
[13:44] <Habbie> but that's cheating
[13:45] * mike_t (~mike@pluto.dd.vaz.ru) Quit (Remote host closed the connection)
[13:45] <ShorTie> pi has 1 nic and usb donagle is the other
[13:46] <oq> usb isn't really an option, at least for pfsense, not used this smoothwall
[13:46] <Habbie> pfsense is not an option in general
[13:46] <Habbie> unless you want to get hacked
[13:47] <ShorTie> the best my DSL connection get is around 200kbs, so i don't think usb bandwidth would be a problem
[13:47] <oq> u wot
[13:47] <oq> pfsense is an enterprise standard
[13:48] <Habbie> pfsense is terrible code full of bugs, and when you report them, they don't actually fix the problems, they just put in another hack
[13:48] <Habbie> it's really bad
[13:48] <strixUK> hrm. i thought the pi3 was supposed to have 802.11n.. in which case i'm surprised that the max bitrate is 54 Mb/s
[13:48] <oq> strixUK: pi3 has 72mbit n
[13:48] <oq> you need 40mhz hardware to get 150mbit n
[13:48] <strixUK> in that case, i guess iwlist is fibbing. or doesn't know about 72 Mb/s. it's lower than i'd hoped, but still better than 54 Mb/s
[13:49] <oq> 72mbit is a theoretical max
[13:49] <strixUK> of course
[13:49] <strixUK> as is 54
[13:49] <strixUK> actual throughput will depend on environmental RF conditions
[13:50] <strixUK> (and protocol overheads etc, which i never bothered to learn anything about for wifi. wrote my own GbE MAC once, though.)
[13:50] * Slippern (~Slippern@151.141-0-99.customer.lyse.net) Quit (Read error: Connection reset by peer)
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[13:52] <mfa298> I think the pi3 wifi throughput is more limited by the sdio interface rather than the wifi hardware (sdio limit is something like 40mbit/s)
[13:54] <strixUK> really? pitty
[13:54] <strixUK> in fact, that's going to be a PITA
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[13:55] <Sonny_Jim> Don't want to say I told you so, but erm
[13:55] <Sonny_Jim> I'm staying positive!
[13:56] <Habbie> i can't find any benchmarks above 20mbit/sec actual wifi throughput on the pi3
[13:56] * qdk (~qdk@xd520f26a.cust.hiper.dk) Quit (Ping timeout: 240 seconds)
[13:58] <strixUK> well, i'm not sure what imprecations i'm allowed to use in this chan, but one of them.
[13:59] <strixUK> bah.
[13:59] <strixUK> still, 20 Mb/s will do for now.
[13:59] <strixUK> better than trying to lay ethernet to the loft.
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[14:01] * strixUK (~strix@cpc91200-cmbg18-2-0-cust11.5-4.cable.virginm.net) Quit (Quit: Leaving.)
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[14:02] <mfa298> You could try a usb wifi dongle, but then you're sharing usb bandwidth with other usb things (although you would also do that if you used wired ethernet)
[14:03] <strixUK> sorry i missed the last few messages while the router reset itself.
[14:03] <mfa298> nothing was said between you're last message and what I just said
[14:04] <strixUK> (thanks)
[14:04] <strixUK> mfa298: yes, that might be a worthwhile option. as for sharing b/w, that'd be true of using wired ethernet anyway
[14:05] * lerc (~quassel@121-72-194-50.dsl.telstraclear.net) has joined #raspberrypi
[14:05] <strixUK> also, this solves the problem of figuring out how to attach PROPERLY an external wifi antenna connection
[14:05] <strixUK> (removing such loading discretes as may be necessary, which will require the schematic, and .. Foundation etc)
[14:07] * marcdinkum (~marcdinku@2001:985:5982:1:7143:a798:3c92:3494) Quit (Ping timeout: 255 seconds)
[14:09] * immibis (~chatzilla@122-61-224-157.jetstream.xtra.co.nz) Quit (Ping timeout: 260 seconds)
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[14:11] * pintman (~pintman@p54BFE2FD.dip0.t-ipconnect.de) Quit (Ping timeout: 240 seconds)
[14:13] <Sonny_Jim> Thing is, that USB WiFi dongle is going to share the same bandwidth as the RTLSDR dongle
[14:15] * meinside (uid24933@gateway/web/irccloud.com/x-muogmujymhziotpo) Quit (Quit: Connection closed for inactivity)
[14:15] <strixUK> that's true, but so will wired ethernet
[14:15] * edvorg (~edvorg@2405:4800:58b4:c551:11bb:e4cd:cd27:f1fc) Quit (Remote host closed the connection)
[14:16] <mfa298> is the plan to stream the full IQ stream to another device or are you doing some processing on the Pi first ?
[14:16] <strixUK> i'd like to be able to do both
[14:17] <strixUK> stream IQ for experimental purposes, but the rest of the time, do the decoding on the pi
[14:17] <strixUK> dump1090 apparently is easy for the pi, so no problem there; and decoding AM shouldn't be difficult
[14:18] <strixUK> progress: wlan, static IPs, hostname, username & pw all sorted
[14:18] * blackbeard420 (~blackbear@dynamic-acs-24-154-171-60.zoominternet.net) has joined #raspberrypi
[14:21] <mfa298> I did try IQ streaming on a Pi1 in the early days and it seemed to work, dump1080 also works on a Pi1
[14:22] * uks (~uksio@p20030069AF1825929800690902A82914.dip0.t-ipconnect.de) has joined #raspberrypi
[14:22] <Sonny_Jim> I mean, it works, sure
[14:22] <Sonny_Jim> But you doin't get a whole lot of bandwidth to play with
[14:22] <mfa298> dump1080, decoded AM won't take much bandwidth for the network connection. It's only the raw IQ stream that's likely to be really bandwidth intensive
[14:22] <strixUK> right.
[14:23] * uksio (~uksio@p20030069AF1825929800690902A82914.dip0.t-ipconnect.de) Quit (Ping timeout: 255 seconds)
[14:23] <mfa298> the IQ stream from an rtlsdr is something like 32mbps (2msps, 8 bits, 2 sets of samples (I,Q))
[14:24] <mfa298> you can also help that bandwidth requirement by limiting the sample rate
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[14:34] <strixUK> yup
[14:35] <strixUK> and yup
[14:35] <strixUK> i was initially puzzled how 2 MS/s could give 2 MHz bw until I understood about IQ sampling
[14:35] * Hoogvlieger (~Hoogvlieg@541A8950.cm-5-3c.dynamic.ziggo.nl) Quit (Quit: Leaving)
[14:38] <strixUK> do i need/want triggerhappy?
[14:38] <strixUK> looks like it's not set to do anything useful by default
[14:40] * Encrypt (~Encrypt@AMontsouris-655-1-14-151.w90-44.abo.wanadoo.fr) has joined #raspberrypi
[14:49] <Sonny_Jim> If it ain't broke, don't fix it
[14:49] <ShorTie> aw, thats no fun
[14:50] * vjacob (~vjacob@ip1.c4398.amb314.cust.comxnet.dk) Quit (Ping timeout: 240 seconds)
[14:51] <strixUK> as a matter of habit, i disable all stuff i don't want or need.
[14:51] <strixUK> perennial habit of the habitually paranoid sys-admin
[14:51] <strixUK> okay, this thing is behind a NAT, but habits die hard.
[14:52] * Sonny_Jim shrugs
[14:52] <strixUK> wow this thing boots fast
[14:52] <Sonny_Jim> I mean, it's the Lite distro, what is there to disable?
[14:53] <strixUK> bluetooth, avahi (complete waste of time/cycles/memory), triggerhappy, ipv6
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[14:57] <RajRajRaj> gpio himself is here
[14:57] * RajRajRaj (uid72176@gateway/web/irccloud.com/x-kbxqiqautgfewsjg) Quit ()
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[15:05] <strixUK> i note the kernel command line sets the MAC address for eth0. how is that allocated?
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[15:07] <mfa298> it's based off the serial number
[15:07] * semyon (~semyon@unaffiliated/semyon) Quit (Quit: Going offline, see ya! (www.adiirc.com))
[15:08] <strixUK> read out of an EPROM? Because i wrote a generic jessie-lite image to the SD, so something must have updated the config file...
[15:08] <strixUK> oic, this is not really on the commandline. it's appended by the kernel itself.
[15:10] <Sonny_Jim> I think you can change it though
[15:10] <Sonny_Jim> Maybe something on the kernel command line
[15:11] <Sonny_Jim> Yeah smsc95xx.macaddr= in cmdline.txt
[15:11] <strixUK> oh sure, but i have no desire to.
[15:11] * rorro (~rorro@h-170-152-58.a163.priv.bahnhof.se) Quit (Ping timeout: 240 seconds)
[15:11] <strixUK> it's just that when i see 'settings' (as opposed to autodected things), i worry
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[15:32] <strixUK> okay, last thing, against the possibility that I might have to plug a usb keyboard into this thing and type blind, i need to have the console set to dvorak keyboard layout (because i can't type on QWERTY anymore worth a damn)
[15:32] <Habbie> sudo raspi-config
[15:32] <strixUK> the raspi-config localisation stuff sets language, but doesn't seem to offer a keyboard override
[15:32] <Habbie> oh
[15:32] <Habbie> then google for how to do it in debian
[15:33] * vjacob (~vjacob@ip1.c4398.amb314.cust.comxnet.dk) Quit (Quit: Leaving)
[15:33] * Ninetou (~Ninetou@mail.nfinitystudio.com) Quit (Ping timeout: 255 seconds)
[15:33] <strixUK> you get to set your locale and encoding, but not keymap.
[15:33] <strixUK> Habbie: yup, done so.
[15:33] * sphenxes (~sphenxes@217-149-169-212.nat.highway.telekom.at) Quit (Ping timeout: 240 seconds)
[15:34] <strixUK> and 'localectl status' reports that X11's layout is now dvorak, but the VC keymap is 'n/a'
[15:34] <strixUK> so what puzzles me is what happens when you plug in a USB keyboard
[15:35] * blackbeard420 (~blackbear@dynamic-acs-24-154-171-60.zoominternet.net) Quit (Quit: Lost terminal)
[15:35] <strixUK> i mean, it must _have_ a console because it's got an HDMI out and USB keyboard support, but without actually finding a keyboard and monitor (which is why i went headless setup in the first place)...
[15:36] <strixUK> meh, let's hope i never have to find out.
[15:36] <strixUK> awesome. so one pi ready for performance testing.
[15:36] * pintman (~pintman@p54BFE2FD.dip0.t-ipconnect.de) has joined #raspberrypi
[15:37] <Habbie> apparently localectl is wrong on debian
[15:37] * AttieGrande (~AttieGran@host86-174-37-33.range86-174.btcentralplus.com) has joined #raspberrypi
[15:38] <Habbie> strixUK, https://wiki.debian.org/Keyboard#Keyboard_configuration
[15:38] <Habbie> hmm that doesn't work for me
[15:38] <Habbie> at least, the dpkg-reconfigure does not
[15:39] <strixUK> yeah, nor me. i manually edited /etc/default/keyboard
[15:39] <Habbie> ack
[15:39] <strixUK> only way to be sure is to find a keyboard and monitor, which would be a massive nuisance so i'll leave it until i'm desperate ;)
[15:40] <strixUK> CPU at 50°C idle
[15:40] <strixUK> not much margin before it automatically cuts out
[15:40] <strixUK> should see if i can find a heatsink
[15:41] <Sonny_Jim> Heatsink on a Pi3 is always a good idea
[15:41] <Sonny_Jim> Pi1 and Pi2 not so much, but the Pi3 does has demonstrable benefit
[15:41] <Sonny_Jim> Mine came with one iirc
[15:41] * gpio (~gpio@unaffiliated/gpio) Quit (Quit: Leaving, bye bye)
[15:42] <strixUK> mine didn't, alas
[15:43] <strixUK> at least the case i got for it has a hole above the SoC
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[15:59] <GeekOfflineNL> hello
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[16:11] <ball> Hello GeekOfflineNL
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[16:15] * Sonny_Jim (~pi@CPE-120-147-31-154.cjym1.win.bigpond.net.au) Quit (Quit: Lost terminal)
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[16:31] <strixUK> Sonny_Jim: iperf UDP maxes out at 48 Mb/s, locally
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[16:38] <strixUK> TCP maxes out at around 46 Mb/s. not too bad. not great, but not too bad. What happens up in the loft is another matter, though, and one that will have to wait until Monday.
[16:39] <strixUK> 'course, this is wholly unscientific. not a large sample set.
[16:39] * cesdo (~user@193.151.224.40) Quit (Excess Flood)
[16:39] <strixUK> but as a rough-and-ready approximation of the pi3's performance, it's a starting point.
[16:43] <ball> How does that compare to a B+ or 2B?
[16:44] * rorro (~rorro@h-170-152-58.a163.priv.bahnhof.se) has joined #raspberrypi
[16:44] <strixUK> absolutely no idea because this is the first and only time i've ever used a pi
[16:45] * brose (~brose@ixoria.allmybase.com) Quit (Excess Flood)
[16:45] <strixUK> but it wouldn't be comparable anyway, because the pi3's wifi is attached via SDIO and anything else would depend on the quality and type of dongle used
[16:45] <strixUK> and the fact that it's USB attached
[16:46] <strixUK> it is likely that a decent .11n or even .11ac USB-attached wifi dongle would outperform the built-in dongle.
[16:46] * YuGiOhJCJ (~YuGiOhJCJ@bur64-4-78-199-90-154.fbx.proxad.net) Quit (Quit: YuGiOhJCJ)
[16:46] <strixUK> if you're going to use a usb wifi dongle with the pi3, *ensure* that bluetooth is powered down.
[16:46] * djk (~Thunderbi@pool-96-242-161-153.nwrknj.fios.verizon.net) has joined #raspberrypi
[16:46] <ball> Oh WiFi.
[16:46] <ball> Never mind then.
[16:46] <strixUK> they will not play nicely as the built-in wifi+bt will.
[16:48] * marcdinkum (~marcdinku@2001:985:5982:1:e80f:19ad:2b3c:5849) Quit (Ping timeout: 260 seconds)
[16:48] * m_t (~m_t@p5DDA0BAB.dip0.t-ipconnect.de) has joined #raspberrypi
[16:51] <strixUK> that exercised raised the SoC temperature by about 5-6°C
[16:51] * vjacob (~vjacob@ip1.c4398.amb314.cust.comxnet.dk) has joined #raspberrypi
[16:57] <polprog> why not mix BT and wifi?
[16:59] <strixUK> polprog: because they use the same RF band (2.5 GHz ISM) unless, of course, you're using 5 GHz wifi (which the pi does not support) and the protocols are not compatible with each other. they will trash each other's packets.
[16:59] <polprog> oh. i never realized BT ues that band :P
[16:59] <polprog> TIL
[16:59] <strixUK> this is somewhat mitigated in the built-in wifi/bt MAC because the MAC can multiplex access to the antenna such that only one of them ever transmits at any one time, but that doesn't prevent the peer from transmitting at the wrong time.
[17:00] * DingoSaar (~hagen@pD9E086EE.dip0.t-ipconnect.de) has joined #raspberrypi
[17:00] <strixUK> yeah, it's kind of a sad story
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[17:07] <hypermist> the moment you wanna use your pi0w buuut realized you can't because you need wifi to do the thing you want and the wifi network thats in your bedroom is 2.1 and not 3.1
[17:07] <hypermist> xD
[17:07] <strixUK> wifi is broad-ish band (i forget which, exactly), maybe 20 MHz, where BT is narrower band but frequency hops
[17:07] <strixUK> all over every wifi channel
[17:07] <polprog> like a jammer :D
[17:08] <strixUK> precisely
[17:08] <hypermist> i used a nodemcu to deauth my wifi haha
[17:09] <polprog> do you think system shock 2 would run on the pi? or any opengl code
[17:10] <ali1234> a native port would run fine
[17:10] <polprog> yeah, i asked about SS2 cos there's a native version since some time
[17:10] <polprog> some time ago*
[17:10] * HeathHayleiOS6 (Elite17015@gateway/shell/elitebnc/x-zwdpmhomxaubftwb) Quit (Ping timeout: 260 seconds)
[17:16] * LeaveMeBe (53530b5c@gateway/web/freenode/ip.83.83.11.92) has joined #raspberrypi
[17:18] <LeaveMeBe> Hello, I was just getting started with the Pi with an example from the Resources page, but it's not working and I can't find any help in Google
[17:18] <LeaveMeBe> Does anybody know if there is a discussion board for the articles where I can ask for help_
[17:18] <LeaveMeBe> ?
[17:19] <LeaveMeBe> the article in concrete is www[dot]raspberrypi[dot]org/learning/ultrasonic-theremin/
[17:21] <polprog> what' the problem exactly
[17:22] * hamitron (~hamitron@212.159.76.90) has joined #raspberrypi
[17:23] <LeaveMeBe> The ultrasound sensor is working well enough, but sonic pi is not playing any sound
[17:24] <polprog> do you know how to use a program called alsamixer?
[17:24] * Rickta59 (~Rickta59@107.12.198.216) has joined #raspberrypi
[17:24] <polprog> i suspect that your sound is just muted
[17:24] <polprog> or the cable's unplugged
[17:25] <LeaveMeBe> well, I tried with "play 70" and things like that and it worked xD
[17:25] <polprog> hmm
[17:26] <LeaveMeBe> I believe the issue is in the synchronization, as sonic pi is stuck here
[17:26] <LeaveMeBe> {run: 10, time: 0.0, thread: "live_loop_listen"} ├─ cue :listen └─ sync "/play_this"
[17:26] <polprog> what do you mean by stuck
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[17:27] <polprog> any error mesages>
[17:27] <polprog> ?
[17:28] <LeaveMeBe> no error message
[17:28] <LeaveMeBe> by "stuck" I mean trying to read something, not being able and not moving from that action, I don't know if that makes sense xDu
[17:31] <LeaveMeBe> by contrast, commenting the sync code and playing a concrete note (and also adding sleep to avoid a Runtime Error) gets the following in the log: {run: 12, time: 0.0, thread: "live_loop_listen"} ├─ cue :listen └─ synth :beep, {note: 70.0}
[17:32] * nils_2 (~nils_2@unaffiliated/nils-2/x-2480262) Quit (Remote host closed the connection)
[17:33] <LeaveMeBe> I've checked the open ports with "sudo netstat -tulpn", and the ones I've seen for sonic pi where from the 4556 to the 4558 (both included), but none of them worked
[17:34] <cnnx> hi
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[17:35] <polprog> i dont know much about sonic pi, but try to get some debug into that code.. im sure that there is a way to get some debug info.
[17:35] <polprog> especially that sync command
[17:44] <LeaveMeBe> I've just noticed apt-get update kept back the sonic-pi package, so now I'm trying that
[17:44] * mike_t (~mike@95.67.196.50) has joined #raspberrypi
[17:45] <polprog> which package keeps it back? it'sabad sign
[17:45] <LeaveMeBe> eh... no idea, and I just did apt-get install sonic-pi xDu
[17:46] * Encrypt (~Encrypt@AMontsouris-655-1-14-151.w90-44.abo.wanadoo.fr) has joined #raspberrypi
[17:47] <LeaveMeBe> I couldn't find much documentation online about the sync command used like that, or even about using udp to communicate with Sonic Pi. I even saw a comment in the Google Group saying that there existed an api like that (not quite the same) but it was intended only for the GUI and that should not be used because it could be discontinued xD
[17:49] * j08nY (~j08nY@kou-street209-53.pks.muni.cz) has joined #raspberrypi
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[17:53] <LeaveMeBe> haha, now the port from the example is open and it works : D
[17:54] <LeaveMeBe> but seriously, I don't know how the author knew how to do that, I am seriously interested in a discussion board for those articles
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[20:07] <ams__> I have a USB adapter to allow me to power my Wifi adapter separately (a splitter), when I plug this wifi adapter in to the data ("usb") slot on the pi zero it powers on. With nothing connected to my power port. Am I going mad?
[20:07] <polprog> no, it probably routes some power from the zero
[20:08] <polprog> if you have a multimeter you can check the voltage
[20:09] <ams__> I'm saying the power is going *to* the zero, through the non-power port
[20:09] <ams__> Unfortunately no multimeter, but good point
[20:09] * Guest84680 (Elite17015@gateway/shell/elitebnc/x-mwzltzvndvtzwbqv) has joined #raspberrypi
[20:09] <polprog> i dont know the quirks of the zero hardware desing but it's possible that usb 5v and gnd are connected to the internal 5v net
[20:10] <polprog> and internal gnd respectively
[20:10] * Guest84680 is now known as HeathHayleiOS6
[20:10] <ams__> ok gotcha, thanks
[20:11] <polprog> np
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[20:27] * johnjay (26780a63@gateway/web/freenode/ip.38.120.10.99) has joined #raspberrypi
[20:27] <johnjay> Can I somehow setup a pi to screencast my desktop over wifi to a hdmi monitor?
[20:28] <johnjay> i only know basic linux commands like cat and ls.
[20:31] <shauno> I don't see why not. It's quite common to see people putting a vncserver on the pi so they can use it without a monitor. All you want to do is install them the other way around - so you have a vnc-server on your desktop and a vnc-client on your pi
[20:31] <johnjay> i thought vnc was windows only
[20:32] <johnjay> i'm looking for free as in beer software to be clear
[20:32] <Psi-Jack> Ewww, VNCrap.
[20:32] <Psi-Jack> And no, VNC is not windows only. It's just insecure garbage.
[20:32] * qdk (~qdk@87-63-182-234-static.dk.customer.tdc.net) Quit (Ping timeout: 240 seconds)
[20:33] <johnjay> i'm specifically thinking of sharing either my whole screen or just a window
[20:33] <Psi-Jack> But, huh? Screencast over WiFi to HDMI?
[20:33] <viju> shauno: Why would one put a vnc client on the pi?
[20:33] <johnjay> yeah i have a huge tv screen that isn't near any ethernet
[20:33] <shauno> because in his scenario, the pi's the one with the monitor
[20:33] <Psi-Jack> Why would one use VNC at all, when there's far better things like X2go? ;)
[20:33] <johnjay> and I want to screenshare my desktop to it
[20:34] <viju> oh right, makes sense
[20:34] * dreamon (~dreamon@unaffiliated/dreamon) has joined #raspberrypi
[20:35] <johnjay> X2Go is an open source remote desktop software for Linux that uses the NX technology protocol.[3] X2Go gives remote access to the Linux graphical user interface.
[20:35] <Psi-Jack> johnjay: That was a hint, BTW, X2go can do whole environments, active running desktop, or a single application.
[20:35] <johnjay> yeah it sounds like rdp for windows which gives full control over
[20:35] <johnjay> i was more looking for just sharing the screen video
[20:36] * semyon (~semyon@unaffiliated/semyon) has joined #raspberrypi
[20:36] <viju> I am having nightmares connecting the esp8266 using cp2102. Arduino would simply can't open the serial port.
[20:36] <Psi-Jack> johnjay: Try it before you assume.
[20:37] * m92 (~m92@gateway/vpn/privateinternetaccess/m92) Quit (Quit: My MacBook has gone to sleep. ZZZzzz…)
[20:38] <johnjay> i'm reading the arch wiki and it says something about x11 forwarding
[20:38] * lemonzest (~lemonzest@unaffiliated/lemonzest) Quit (Quit: Leaving)
[20:39] <polprog> johnjay: yes, it's a thing
[20:39] <polprog> cool one
[20:39] <johnjay> Basically I just want to know how difficult it's going to be.
[20:39] <johnjay> On a scale from 1 to Reading r/linux, askubuntu, and tldp all day trying to figure out the answer
[20:41] * Chunkyz1 (~Chunkyz@unaffiliated/chunkzz) Quit (Quit: Leaving)
[20:42] <johnjay> When I googled I got this page talking about a few packages like picast for example: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=157734
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[20:55] <nacelle> theres many ways to do it, I'd start with simple vnc first (so tile based compression happens at a minimum) just because everythings already there usually (and will be there when you upgrade, etc.)
[20:55] <nacelle> you can use vnc in read only mode (or rather, in wont accept inputs mode)
[20:56] <nacelle> (I found NX and X2go a bit more tricky to get working that VNC fwiw. better compression, etc.)
[20:57] <nacelle> x11 forwarding is about the worst you can usually do bandwidth consumption wise
[20:57] <nacelle> (it is basically uncompressed, etc. - its old)
[20:59] <nacelle> lots of choices: https://en.wikipedia.org/wiki/Comparison_of_remote_desktop_software
[20:59] <polprog> its probably very unsecure too
[21:01] <nacelle> x11? yes
[21:01] <nacelle> security probably isnt a huge concern for johnjays problem
[21:01] <nacelle> sounds like its on his lan, in his living room, which will behind a NAT/etc.
[21:01] * taza (~taza@unaffiliated/taza) Quit ()
[21:01] <polprog> yeah.
[21:02] <polprog> johnjay: i'd say just install some vnc server from the repos and read a guide on configuration
[21:02] <polprog> it can be on archwiki, because contrary to the name it has generic config guides
[21:02] <nacelle> (where in fact, putting the video stream through encryption is a bit of extra work that I'd suggest disabling to get better fps while streaming if its on a LAN anyways)
[21:03] <polprog> ^^
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[21:06] <johnjay> hmm well if vnc is free as in beer i'll try it first
[21:06] <johnjay> i'm watching a video about a guy using a pi2 as a chromecast thing with ffmpeg
[21:07] <johnjay> i mean if ffmpeg can video stream that sounds like the simplest solution
[21:07] * Ninetou (~Ninetou@mail.nfinitystudio.com) has joined #raspberrypi
[21:08] <nacelle> thats nice n' ideal
[21:08] * nacelle learns about ffmpeg
[21:08] <nacelle> https://trac.ffmpeg.org/wiki/StreamingGuide
[21:08] <johnjay> yeah i just figured out using vlc that when doing UDP legacy stream you have to type in IP address of the receiving device on both the stremaing *and* receiving device
[21:08] <johnjay> very confusing
[21:09] * Ninetou_ (~Ninetou@97e5639f.skybroadband.com) Quit (Ping timeout: 258 seconds)
[21:09] <nacelle> might have to go through this: https://www.assetbank.co.uk/support/documentation/install/ffmpeg-debian-squeeze/ffmpeg-debian-jessie/
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[21:09] <johnjay> I spent like 2 hours trying to figure that out. so i'm by no means an expert.
[21:10] <nacelle> https://trac.ffmpeg.org/wiki/CompilationGuide/RaspberryPi these are the ffmpeg instructions, not sure if they're current for raspbian
[21:10] <johnjay> nacelle: thanks, that looks useful. I normally don't pass flags to ./configure scripts because that's scray
[21:10] <johnjay> you said x2go and nx
[21:10] <johnjay> you've done this before a lot nacelle?
[21:11] <nacelle> not the specific thing you're doing, but in general
[21:11] <polprog> i think you will want h264
[21:11] <johnjay> cool, that's the most one can expect when asking for help
[21:11] <nacelle> never had to stream a video game kinda thing before, ffmpeg sounds pretty ideal
[21:13] <nacelle> literally doing compression on a video stream and sending that over the network from just the screengrab is handy - it has cropping/etc., the things you'd want for streaming a screen cast
[21:14] * humbot (~i@unaffiliated/humbag) Quit (Quit: oops)
[21:14] <nacelle> (I dont know screen casting, but I've done remote stuff for decades)
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[21:16] <johnjay> so compression is important that makes sense cause video is huge
[21:16] <johnjay> x11 over ssh is secure but slow i also know that from experience lol
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[21:27] <johnjay> hmm
[21:27] <johnjay> is the main diff between rp2 and rp3 the additional ram?
[21:28] <mfa298> same ram on pi2 and pi3
[21:29] <johnjay> i see it has onboard wifi as well.
[21:29] <mfa298> pi3 adds wifi/bt and faster cores
[21:29] <johnjay> it says it goes from 512MB to 1024MB
[21:29] <mfa298> and more heat
[21:29] <mfa298> pi2 also has 1G
[21:29] <mfa298> Pi1/Pi0 are 512 (and early Pi1 was only 256)
[21:30] * strixUK (~strix@cpc91200-cmbg18-2-0-cust11.5-4.cable.virginm.net) Quit (Read error: Connection reset by peer)
[21:31] <johnjay> hmm. maybe wikpedia has the wrong picture then.
[21:32] <johnjay> well a misleading one then
[21:32] <johnjay> the caption says "Location of connectors and main ICs on Raspberry Pi 1 Model B+ revision 1.2 and Raspberry Pi 2"
[21:32] * strixUK (~strix@cpc91200-cmbg18-2-0-cust11.5-4.cable.virginm.net) has joined #raspberrypi
[21:32] <johnjay> and the chip says BCM2835 512MB SDRAM
[21:33] <johnjay> are the heat issues bad for rp3?
[21:33] * swift110 (~swift110@unaffiliated/swift110) Quit (Ping timeout: 255 seconds)
[21:33] <mfa298> BCM2835 is 512MB ram, that's what's used on the Pi1 / Zero
[21:33] <mfa298> Pi2 is BCM2836, Pi3 is BCM2837
[21:33] <johnjay> ah ok that makes more sense
[21:33] <mfa298> B+ is one of the Pi1 models
[21:34] * cesdo (~user@193.151.224.40) Quit (Ping timeout: 240 seconds)
[21:34] <mfa298> the pcb layout is similar between 1B+, 2 an 3 - but different to the original Pi1 and Zero
[21:36] <johnjay> well unless the heat is an issue i'll get the pi3 then
[21:36] <johnjay> amazon has Canakit complete starter edition for $70
[21:37] <mfa298> Pi3 get's hotter if you max out the cpus for a period of time. But it'll start to throttle back the max speed if it gets too hot (80C)
[21:37] <mfa298> small heatsink may help if that's an issue.
[21:37] * ali1234 (~ajbuxton@2a01:4f8:162:4348::2) Quit (Ping timeout: 252 seconds)
[21:37] <mfa298> but for normal use you probably won't be maxing it out all the time
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[21:38] <johnjay> alright
[21:38] * semeion is now known as mnemonic
[21:39] <johnjay> also i'm doing this sort of for the geek factor i geuss
[21:39] <johnjay> i could just buy a google chromecast dongle and do the same t hing
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[21:43] <strixUK> Sonny_Jim: first results with SDR pi and rtl_tcp: 2.4 MS/s works just fine, albeit under optimal conditions (pi close to router)
[21:43] <strixUK> which proves that it rtl_tcp over wifi is perfectly viable, given adequate wifi signal conditions
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[21:46] <johnjay> Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.
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[22:01] <strixUK> johnjay: 'vcgencmd measure_temp' will give you the temperature of the SoC device (in raspbian, anyway)
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[23:11] <johnjay> thanks strixUK I would never have guessed that
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These logs were automatically created by RaspberryPiBot on irc.freenode.net using the Java IRC LogBot.