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  • [17:41:48] * Topic is 'http://beagleboard.org/chat has a guide on how to ask questions and links to the logs | never ask to ask, just ask | be patient'
  • [17:41:48] * Set by jkridner!~jkridner@pdpc/supporter/active/jkridner on Fri Jun 14 15:37:38 CDT 2013
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  • [18:06:29] <elyezer> I'm using ubuntu on beaglebone black and I have downloaded images from http://www.armhf.com/. I'd like to know if there is some tutorial on how to customise rootfs. I'd like to add some scripts and change default network configuration.
  • [18:06:57] * louiz9201 (~a0272879@nat/ti/x-ywwihubiqfsemtnp) Quit (Ping timeout: 252 seconds)
  • [18:07:15] <jkridner> elyezer: have you gone over http://elinux.org/BeagleBoardUbuntu
  • [18:07:20] <jkridner> or are you using Debian?
  • [18:07:31] <jkridner> in which case: http://elinux.org/BeagleBoardDebian
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  • [18:15:44] <elyezer> jkridner: I have visited that page already. Reading with more caution I find this section http://elinux.org/BeagleBoardUbuntu#Method_1:_Download_a_Complete_Pre-Configured_Image. Just to check I need to download a pre-configured language to customise and use the setup_sdcard scritp to create my SD card, after if I want to write the generated image on eMMC I need to use the script also in that page. This is correct?
  • [18:15:59] * elyezer (b1420402@gateway/web/freenode/ip.177.66.4.2) has left #beagleboard
  • [18:16:33] <elyezer> s/language/image
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  • [18:18:25] <jkridner> you can look at "Method #2" to create a bit more custom version.
  • [18:18:32] <jkridner> follow it to http://eewiki.net/display/linuxonarm/BeagleBone#BeagleBone-Ubuntu13.04
  • [18:18:40] <elyezer> got it thank you
  • [18:18:42] <jkridner> start with a minimal tarball and start adding packages.
  • [18:19:56] <elyezer> I'll try that thank you very much
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  • [18:38:59] <elyezer> jkridner: I got my bone black at ESC Brazil, I was in your presentation and I get one of the 15 raffled :)
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  • [18:39:16] <jkridner> excellent. glad to see you using it.
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  • [18:41:57] <elyezer> I have done a thermometer station using node.js and lm35 sensor. Now I'm trying to do some network automation using it. It is a very nice board and I'm enjoying it
  • [18:46:35] <behanw> jkridner: Did I get the time of today's call wrong?
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  • [18:50:04] <jkridner> behanw: We switched to once a month.
  • [18:50:13] <jkridner> Not sure if I updated the invite properly.
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  • [18:51:16] <nomel> i was just reading this: http://mail-index.netbsd.org/port-arm/2013/09/10/msg001998.html
  • [18:51:21] <nomel> is the BBB stable at 1GHz?
  • [18:53:05] <behanw> jkridner: Or I missed it. :) Oh well.
  • [18:53:26] <jkridner> nomel: yes
  • [18:53:53] <nomel> is this assuming i have some late kernel code, or have things changed since that post?
  • [18:54:02] <nomel> err...was that post incorrect?
  • [18:54:02] <jkridner> nomel: the note is correct that the voltage must be changed with the frequency. it requires a PMIC driver
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  • [18:54:24] <nomel> is that driver in the production images?
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  • [18:55:26] <jkridner> yes, for Linux.
  • [18:55:57] <nomel> ok, so all of the production images have had this driver.
  • [18:56:12] <jkridner> yup
  • [18:57:03] <nomel> about crapped my pants when i read that post. :P
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  • [18:58:00] <nomel> thanks jkridner!
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  • [18:58:20] <nomel> you da man with the ampersand.
  • [18:58:21] <jkridner> why so?
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  • [18:58:40] <nomel> for existing in the chat at this moment, and having the knowledge to answer my question, is why.
  • [18:58:46] <jkridner> this is pretty common on modern processors---changing up voltages when at higher frequencies.
  • [18:59:04] <jkridner> I'm just wondering why the post bothered you.
  • [18:59:10] <nomel> what you should do and what people do-do are different things :P
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  • [19:00:07] <nomel> i wasn't sure it was implemented correctly.
  • [19:00:41] <nomel> not that the beaglebone has had any implementation problems. cough hdmi timing f lash bit width cough... uhum, excuse me.
  • [19:00:43] <nomel> :P
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  • [19:01:58] <jkridner> HDMI timing is much better now
  • [19:02:05] <jkridner> as is SD bit width...
  • [19:02:10] <jkridner> but, thanks for tracking!
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  • [19:03:31] <nomel> i'm not being serious of course. a few device tree settings can't be compared to meeting operating requirements of the cpu. :)
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  • [19:15:37] <BeagleGithub> [kernel] RobertCNelson pushed 1 new commit to 3.12: http://git.io/wuM_ng
  • [19:15:37] <BeagleGithub> kernel/3.12 da2adc5 Robert Nelson: 3.12: update to v3.12-rc4...
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  • [19:22:31] <woglinde> haha did not rcn has the right to screw the kernel *g*
  • [19:22:35] <woglinde> +know
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  • [19:24:02] <woglinde> and now it does not make any sense people talking about rcn kernel
  • [19:24:08] <woglinde> to me
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  • [19:40:01] <BeagleGithub> [kernel] RobertCNelson pushed 1 new commit to 3.12: http://git.io/JSfIJQ
  • [19:40:01] <BeagleGithub> kernel/3.12 e1ec2a1 Robert Nelson: 3.12: config: beaglebone FIX usb host: thanks to Felipe Balbi!...
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  • [19:41:18] * vagrantc wonders if that's exactly the patch needed
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  • [20:02:21] <Andyk1> Hello, Anyone know how to set time on the Beaglebone Black. 2013-06-20 version?
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  • [20:03:11] <Andyk1> angstrom version
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  • [20:05:02] <Andyk1> Anyone awake here?
  • [20:05:10] <agmlego> ntpdate. ntp. The usual ways to set time on Linux.
  • [20:05:39] <Andyk1> I can set time and date just not stick after reboot
  • [20:06:05] <Andyk1> on the bbb
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  • [20:07:02] <agmlego> Andyk1: Yeah, because the RTC is not enabled by default, so nothing stores the time.
  • [20:07:03] <ka6sox> what agmlego said
  • [20:07:14] <agmlego> If the bone is always connected to the Internet, just install ntp.
  • [20:07:28] <agmlego> It will automatically get the time after a reboot.
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  • [20:07:53] <Andyk1> I did and set ntp but doesn't stick
  • [20:07:57] <agmlego> There is nothing special about the bone than any other Linux machine in this regard, other than it does not have a hardware clock enabled by default.
  • [20:08:10] <agmlego> Andyk1: Did you configure ntp with a timeserver?
  • [20:08:20] <agmlego> Did you set ntp to start on system boot?
  • [20:08:34] <agmlego> And, most importantly, are you connected to the Internet after boot?
  • [20:08:43] <Andyk1> Yes server 0.north-america.pool.ntp.org
  • [20:08:56] <Andyk1> and the 3 others
  • [20:09:31] <agmlego> Sure, those are acceptable, though finding one closer to home would probably be better in the long run.
  • [20:09:38] <agmlego> How about the other questions?
  • [20:09:50] <Andyk1> yep. tried with the ethernet cable and mini usc cable. and set to 192.168.1.5
  • [20:10:12] <Andyk1> usb I ment
  • [20:10:18] <agmlego> It will not work over the USB cable unless your host does bridging.
  • [20:10:24] <agmlego> Ethernet or WiFi.
  • [20:10:26] <Andyk1> I am connected at start up.
  • [20:10:35] <Andyk1> ethernet
  • [20:10:39] <agmlego> And how long after boot did you wait to check the time?
  • [20:10:55] <Andyk1> as soon as it starts up
  • [20:11:20] <agmlego> Give it a minute. NTP actually has to go out and ask the servers for the time, then do magic clock-disciplining to get accurate time.
  • [20:11:35] <agmlego> And if you are too far off, like hours, ntp will refuse to set the time at all.
  • [20:11:59] <Andyk1> am looking at it now. doesn't it update auto?
  • [20:12:09] <Andyk1> on the gui screen?
  • [20:12:26] <agmlego> The correct solutions here would be a) stop worrying about the time b) enable the RTC onboard and put a backup battery or capacitor on it or c) leave the bone on all the time.
  • [20:12:32] <agmlego> GUI screen?
  • [20:12:53] <Andyk1> Oh OK... cause it says jan 1, 0:02am now
  • [20:13:16] <Andyk1> yes the default start up screen in angsrtom
  • [20:13:20] <agmlego> Right, because the clock starts at 0. Probably also says the year is 1970.
  • [20:13:24] <agmlego> That is the UNIX epoch.
  • [20:13:31] <agmlego> I have no idea what that is.
  • [20:13:40] <agmlego> I have never but never used a GUI on the bone.
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  • [20:14:08] <Andyk1> it's the default start up. what can I say
  • [20:14:10] <agmlego> If it is GNOME, IIRC by default it uses ntpdate to set the time once, then relies on the RTC to keep time thereafter.
  • [20:14:30] <agmlego> You have to actually install ntpd to get a realtime daeomn.
  • [20:14:33] <agmlego> *daemon
  • [20:15:23] <Andyk1> damn, wish I could copy/paste from there to this Win(hate) screen
  • [20:15:32] <agmlego> What window manager or desktop environment does Angstrom run out of the box?
  • [20:15:38] <agmlego> Why can you not?
  • [20:16:51] <Andyk1> I been using putty
  • [20:17:03] <agmlego> That can copy and paste.
  • [20:17:38] <agmlego> IIRC, selecting the text puts it in your paste buffer, then the usual ways work outside PuTTY to paste. To paste into PuTTY, right-click or Shift-Insert.
  • [20:19:31] <Andyk1> can't get into my usr, ntpd.log file from here
  • [20:19:44] <agmlego> Why not?
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  • [20:20:04] <agmlego> Also, logs are usually in /var/log, not in /usr
  • [20:20:24] * old-papa-work (~wl@65-117-102-210.dia.static.qwest.net) Quit ()
  • [20:20:28] <agmlego> /usr is for non-sysadmin files.
  • [20:20:34] <Andyk1> Not sure what I'm doing wrong. Doest see any dir's othere than dest top in the root@beaglebone folder
  • [20:21:04] <agmlego> Andyk1: Do be a favor, and type the command pwd.
  • [20:21:07] <agmlego> Tell me the output.
  • [20:22:30] <Andyk1> it says /home/root
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  • [20:22:56] <agmlego> Right, so you are in root's home directory.
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  • [20:23:15] <agmlego> If you want to see logs, you need to go to /var/log (not /home/root/var/log)
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  • [20:25:49] <agmlego> Andyk1: How much have you done with Linux before the beaglebone?
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  • [20:29:47] <Andyk1> ok am I back yet?
  • [20:29:54] <agmlego> YOu are.
  • [20:30:01] <agmlego> Andyk1: How much have you done with Linux before the beaglebone?
  • [20:30:07] <Andyk1> Not sure what happened. was typing but wasn't going out
  • [20:30:19] <agmlego> You timed out.
  • [20:30:28] <agmlego> 16:26 -!- Andyk1 <48c627c3@gateway/web/freenode/ip.72.198.39.195> has quit (Ping timeout: 250 seconds)
  • [20:30:39] <Andyk1> I'm there. in
  • [20:30:49] <Andyk1> timed out?
  • [20:30:53] <agmlego> Yeah.
  • [20:30:56] <Andyk1> oh ok
  • [20:31:10] <agmlego> IRC daemons continually ping clients. The client is supposed to pong back.
  • [20:31:23] <agmlego> If you do not pong fast enough, the server kicks you off.
  • [20:31:32] <agmlego> So your connection lagged too much, and you timed out.
  • [20:31:46] <Andyk1> Any guess how to fix that in win8?
  • [20:31:48] * fmotu_ (~Bob@108.175.198.97) Quit (Read error: Connection reset by peer)
  • [20:31:59] <agmlego> Yeah, get a better Internet connection.
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  • [20:32:48] <Andyk1> Ok, I'm set up to run on a second router for more connection. might be the problem
  • [20:33:05] <agmlego> In any case, whatever. Connection issues happen.
  • [20:33:07] <thurgood> generally yo uhave about 4 minutes to respond with the pong
  • [20:33:13] <agmlego> (250 seconds)
  • [20:33:17] <Andyk1> anyway I'm in usr/log
  • [20:33:32] <agmlego> /usr/log?
  • [20:33:40] <Andyk1> yes
  • [20:33:41] <agmlego> Not /home/root/usr/log?
  • [20:33:50] <agmlego> OK, weird place for logs.
  • [20:33:56] <agmlego> What do you see there?
  • [20:34:13] <Andyk1> root@beaglebone:/var/log# ntpd.log
  • [20:35:04] <agmlego> OK, so, that woudl be /var/log...not /usr/log
  • [20:35:14] <agmlego> Just saying. Paths matter.
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  • [20:36:41] <Andyk1> one sec cause on gedit it just said /var/log
  • [20:37:49] <Andyk1> crap, all this to set time more perminent
  • [20:38:50] <agmlego> Andyk1: This is your first Linux experience, I can tell. ;-P
  • [20:38:58] <agmlego> Windows does all this in the background too.
  • [20:39:39] <Andyk1> It is. I started 10-12 years ago and got caught up it work and put it aside. decided to take it up again.
  • [20:39:49] <Andyk1> Forgot alot as you can tell
  • [20:39:55] <agmlego> Heh.
  • [20:40:15] <agmlego> So what are you trying to do at the moment by looking at the log?
  • [20:40:37] <Andyk1> trying to remember the linus file structure but it's coming back slow
  • [20:40:57] <agmlego> Just do 'ls -l /'
  • [20:41:49] <Andyk1> Well I can get into the logs on the beaglebone and trying to copy and past here to see what ya's think why it's not updating my time/date stamps
  • [20:42:27] <agmlego> Yeah, please do not directly paste logs here.
  • [20:42:32] <agmlego> Use a service like pastebin.
  • [20:42:56] <Andyk1> I wasn't. Just a few lines of it at a time
  • [20:43:12] <Andyk1> looks like it's not connecting to the ntp server
  • [20:43:17] * qdk (~qdk@188.120.76.162) Quit (Ping timeout: 248 seconds)
  • [20:43:50] <agmlego> Right, so why is it not connecting to the NTP server?
  • [20:44:01] <Andyk1> 0.north-america.pool.ntp.org
  • [20:44:02] <agmlego> Can you resolve the IP using dig? Can you ping it?>
  • [20:44:09] <agmlego> Yeah, you said that already.
  • [20:44:11] <agmlego> ;-P
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  • [20:45:18] <Andyk1> I ping it and nothing came back.
  • [20:45:28] <agmlego> Nothing at all?
  • [20:45:43] <Andyk1> nothing.... at all... doesn't seem right
  • [20:45:47] <agmlego> Not "Destination Unreachable" or "No Network"?
  • [20:45:53] <Andyk1> nothing
  • [20:45:54] <agmlego> What happens when you hit Ctrl+C?
  • [20:46:01] <agmlego> YOu should get some statistics.
  • [20:46:01] * Vlad_on_the_road (~Vlad_on_t@ip-66.net-82-216-1.versailles2.rev.numericable.fr) Quit (Ping timeout: 245 seconds)
  • [20:46:02] <Andyk1> just >
  • [20:46:19] <agmlego> Remember ping on linux works differently (better) then Windows, and defaults to continuous pings.
  • [20:46:28] * falstaff (~quassel@62-12-229-021.pool.cyberlink.ch) Quit (Ping timeout: 240 seconds)
  • [20:46:29] <agmlego> That seems like your command was wrong.
  • [20:46:31] <Andyk1> hahaha it if I remember right I should have gottin something
  • [20:46:41] <agmlego> Hit Ctrl+C, and tell me the exact command you used.
  • [20:47:24] <Andyk1> I ping'ed 198.58.100.237 which is the ntp server ip I was connecting to
  • [20:47:57] <agmlego> No. I want you to paste the *exact* command you ran.
  • [20:48:14] <Andyk1> ping 198.58.100.237
  • [20:48:16] <agmlego> Include the two prompts and the >
  • [20:48:42] * N2TOH pastebin is your friend
  • [20:48:45] <Andyk1> > ping 198.58.100.237
  • [20:49:07] <agmlego> Why is the > there?
  • [20:49:13] <Andyk1> I'm still learning... sorry... remembering
  • [20:49:16] * DanLipsitt (~dan@208-90-213-226-typea.static.monkeybrains.net) Quit (Quit: DanLipsitt)
  • [20:49:41] <Andyk1> because thats what my line looks like now.
  • [20:50:16] <agmlego> Hit Ctrl+C a few times, and then run the command reset
  • [20:50:19] <Andyk1> after I entered ls -l /'
  • [20:50:32] <agmlego> Why is the ' there?
  • [20:50:40] * hitlin37 (~chatzilla@s213-103-194-253.cust.tele2.se) Quit (Ping timeout: 248 seconds)
  • [20:50:57] <Andyk1> sorry... reset or reboot?
  • [20:51:03] <agmlego> reset
  • [20:51:12] <agmlego> YOu want to reset the terminal, not reboot the machine.
  • [20:51:35] <Andyk1> because 15:40] <agmlego> Just do 'ls -l /'
  • [20:51:47] <agmlego> Yeah, but you did not copy the first '
  • [20:51:49] * Russ (foobar@pool-71-189-49-9.lsanca.fios.verizon.net) Quit (Ping timeout: 248 seconds)
  • [20:51:53] <agmlego> Why did you copy the second?
  • [20:52:23] <Andyk1> ok reset... root@beaglebone:/var/log#
  • [20:52:29] <agmlego> There you go.
  • [20:52:45] <agmlego> Now. 'dig 0.north-america.pool.ntp.org'
  • [20:52:46] <Andyk1> the second?
  • [20:52:54] <woglinde> *sigh*
  • [20:52:55] <agmlego> DO NOT copy the quote marks.
  • [20:53:05] <agmlego> Just the command inside them.
  • [20:53:15] <agmlego> pastebin the result.
  • [20:53:42] <Andyk1> hehe so much for copy and paste
  • [20:54:02] <Andyk1> what is pastebin? a command?
  • [20:54:07] <agmlego> A website.
  • [20:54:11] <Andyk1> ok
  • [20:54:15] <agmlego> http://pastebin.org
  • [20:54:48] <Andyk1> shezzz learning overload.
  • [20:55:06] <Andyk1> Hehehe just want to set the time hahahah
  • [20:55:24] <Andyk1> to come on after reboot
  • [20:55:25] <agmlego> Sure, and setting the time is easy if you know Linux. ;-P
  • [20:55:44] <agmlego> The issue is, you do not. So you are climbing a pretty big learning curve.
  • [20:56:16] <Andyk1> I found a site to fix it but didn't work. http://derekmolloy.ie/automatically-setting-the-beaglebone-black-time-using-ntp/
  • [20:56:29] <agmlego> I can help you if you let me.
  • [20:57:10] <Andyk1> Wett I can set the time and date... but doesn't stick between reboots and not sure why
  • [20:57:19] <Andyk1> errrr well
  • [20:57:19] <agmlego> ...I told you that.
  • [20:57:35] <agmlego> The onboard RTC, the hardware clock, is not enabled by default on the bone.
  • [20:57:54] <Andyk1> sure. go ahead
  • [20:57:58] <agmlego> There is nowhere for Linux to store the time when it shuts down, and thus there is nowhere for Linux to get the time from on boot.
  • [20:58:14] <agmlego> Thus, Linux cannot possibly keep time over a reboot.
  • [20:58:36] <agmlego> You need to either a) not care aout the time b) turn on the RTC c) not reboot or d) use NTP.
  • [20:58:51] <agmlego> Of these, NTP is the most realistic option, and the easiest.
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  • [20:59:04] <agmlego> Which is why I am trying to help you figure out why NTP is not working.
  • [20:59:16] <agmlego> But I need to see the output of 'dig 0.north-america.pool.ntp.org'.
  • [20:59:47] <Andyk1> let me do a reboot on the bone and see what the errors read... on reboot
  • [20:59:59] <agmlego> Or just give me the output of the command I gave you.
  • [21:00:21] <Andyk1> Ok... I missed the command... sorry
  • [21:00:27] <agmlego> 'dig 0.north-america.pool.ntp.org'
  • [21:00:34] <agmlego> DO NOT copy the quotes.
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  • [21:00:41] <agmlego> Put the output in http://pastebin.org.
  • [21:00:47] <agmlego> Tell me the link it gives you.
  • [21:01:19] <woglinde> agmlego but you need the right options for ntp
  • [21:01:31] <woglinde> otherwise it will not set the time correctly
  • [21:01:45] <agmlego> woglinde: I am aware. Andyk1 indicated that the NTP log showed him not seeing the timeserver.
  • [21:01:52] <agmlego> So, one problem at a time.
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  • [21:02:12] <agmlego> NTP cannot set the time at all if it does not have servers to talk with.
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  • [21:09:22] * agmlego leaves work for the flight home.
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  • [21:11:32] <Andyk1> Kicked me out again and I locked the bone up somehow to.
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  • [21:14:33] <Andyk1> Going to log in here from the bone to make this easier
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  • [21:20:17] <Andyk1> Going to give up on this for now.... my head hurts. thanks anyway guy's
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  • [21:31:28] <Tenkawa> anyone have any theories/known-bugs on why a bbb with the 3.11 cant seem to use the cpufreq governors and is stuck at lowest speed?
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  • [23:01:00] * vagrantc cheers
  • [23:01:09] <vagrantc> ok, 3.12-rc4 with working USB.
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  • [23:29:34] <georgem_home> Other than ebay, digikey, allelectronics can anyone suggest a good place to look for 4x 660nm red clear GaAlAs 1000mcd LEDs?
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  • [23:39:07] <CareBear\> newark
  • [23:39:29] <CareBear\> georgem_home : if you have a particular part number then use findchips.net (or is it .com?)
  • [23:39:53] <georgem_home> i'll try that.
  • [23:40:08] <CareBear\> parametric search may be difficult among the distributors
  • [23:40:24] <CareBear\> what do you mean by 4x ?
  • [23:40:27] <CareBear\> one package with 4 LEDs?
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  • [23:47:31] <SpeedEvil> georgem_home: you do know that 1000mcd isn't a measure of total light output?
  • [23:47:32] * fmotu- (~Bob@108.175.198.97) Quit (Read error: Connection reset by peer)
  • [23:49:23] <georgem_home> CareBear: I just need 4 of the LEDs apposed to like a bag of 100
  • [23:50:55] <CareBear\> georgem_home : you may need to buy a few more though..
  • [23:52:58] <georgem_home> SpeedEvil: Actually I'm not too savy on LED details but I know that I don't want to deviate much from the parts specified in this design unless I want to also significantly improve my understanding of light absorption.
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  • [23:53:12] <SpeedEvil> What are you trying to make.
  • [23:53:31] <georgem_home> http://blog.siliconlabs.com/2012/11/21/create-a-simple-pulse-oximeter-with-tiny-gecko/
  • [23:54:59] <SpeedEvil> Basically any bright LED of about the right wavelength will work
  • [23:56:20] <SpeedEvil> I would lose the transistors, use a 10mA drive current directly from the beagle with appropriate resistors, and pulse the LEDs on and off sampling multiply to improve SNR
  • [23:56:25] <georgem_home> Ok, good to know.
  • [23:56:48] <SpeedEvil> This will also eliminate the noise issues.
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  • [23:57:17] <SpeedEvil> (you turn on and off the LEDs 1000 times a second, measuring when on and off, and then read once when on, once when off.
  • [23:57:39] <SpeedEvil> You get instead of a DC level, a 1000Hz waveform that corresponds to the actual signal
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