**** BEGIN LOGGING AT Wed Sep 27 03:00:01 2017 Sep 27 03:58:15 4.9.x! Sep 27 03:59:26 set_: what distro? Sep 27 03:59:43 i'd use a systemd service, just like any other linux computer Sep 27 03:59:55 but idk much about the beaglebone distros, they do weird shit Sep 27 04:02:01 Debian Sep 27 04:03:01 use a serviced service file. Do you want me to walk you through creating one? Sep 27 04:03:15 Sure...pastebin? Sep 27 04:03:47 i mean, most if it is tweaking options (what directory do you want it run in, what user/group do you want it to run in, what part of the boot process...) Sep 27 04:03:49 Or...you can give me hand by hand instructions. Sep 27 04:03:53 lemme dig up a base Sep 27 04:04:05 Okay...let me start my machine again. Sep 27 04:05:56 alright Sep 27 04:06:02 so here's a pretty simple base: https://ncry.pt/p/EfHn#GBseL-F5NRf5MOc29aGKLnNCJ4zXXGtZ1cMaRcK7iG0 Sep 27 04:06:02 Okay. Sep 27 04:06:35 what site is that? Sep 27 04:06:43 at bare minimum you'll want to update the Description (line 2) and ExecStart (line 9) Sep 27 04:06:54 Can we use Pastebin? Sep 27 04:06:58 ew Sep 27 04:07:00 i guess Sep 27 04:07:03 Yea! Sep 27 04:07:14 Please master Me-Oggi? Sep 27 04:07:32 Judo reference! Sep 27 04:07:43 pastebin is now trying to get me to sign up for an account Sep 27 04:07:48 amazing, they made it even worse Sep 27 04:07:50 https://pastebin.com/ML6b5pym Sep 27 04:07:52 No... Sep 27 04:07:55 Oh...okay. Sep 27 04:07:59 hey at least they got https Sep 27 04:08:09 took them long enough Sep 27 04:08:52 OTay! So, I just follow instructions and bam? Sep 27 04:08:59 what instructions? Sep 27 04:09:09 update lines 2 and 9 at bare minimum Sep 27 04:09:12 I forgot what directory to do to. Sep 27 04:09:28 sorry...to go to. Sep 27 04:09:32 oh Sep 27 04:09:36 okay... gl Sep 27 04:09:47 goes in /etc/systemd/system/whatever-your-service-is-called.service Sep 27 04:09:52 Augh! Sep 27 04:10:27 Hey thefinn93: Why did they take the blah.service section out of the LFS201 course? Sep 27 04:10:49 i have no idea what "LFS201" is Sep 27 04:11:23 linux from scratch 201? Sep 27 04:11:25 lol Sep 27 04:11:29 just guessing Sep 27 04:11:30 Oh. They have a license you can get for Linux. I was into it and still am. I got the LinuxFoundation course to get a cert. Sep 27 04:11:49 a license? Sep 27 04:11:54 Yea boy! Sep 27 04:11:54 you mean like a certification? Sep 27 04:11:57 Yea! Sep 27 04:11:59 oh Sep 27 04:12:03 Cool, heh? Sep 27 04:12:04 that sounds pretty silly Sep 27 04:12:12 I know but people hire people with certs. Sep 27 04:12:34 if you say so Sep 27 04:12:40 Not just degrees, employers want to see what has heppened since graduation. Sep 27 04:12:44 I guess. Sep 27 04:13:02 I make believe stuff, I guess. Sep 27 04:13:25 I am going to set up my system and I will let you know what happens. Sep 27 04:13:30 uh okay Sep 27 04:13:36 ping me if you've got questions i guess Sep 27 04:13:42 OTAY! Sep 27 04:21:32 thefinn93: Hey! It is me. I am lost. Sep 27 04:21:42 I need help with the service again. Sep 27 04:29:40 <<<< on break Sep 27 04:37:53 Oh shit hang on lemme get my laptop back out Sep 27 04:38:04 set_: what's up Sep 27 04:38:07 Otay! Sep 27 04:38:10 Notta. Sep 27 04:38:25 Just shutting down the machine. Sep 27 04:38:55 what help do you need Sep 27 04:39:03 https://github.com/adafruit/adafruit-beaglebone-io-python/blob/master/doc/run_config-pin_during_startup.md Sep 27 04:39:10 Does this work for me in my situation? Sep 27 04:40:05 ... Sep 27 04:40:09 i would change Type to oneshot Sep 27 04:40:16 so that it doesn't try to re-run it Sep 27 04:40:23 but idkgenerally looks right Sep 27 04:40:26 I know I am not getting pins to run but getting a file to run. Sep 27 04:40:46 I have a MotorBridgeCape and some software I wrote on the board. Sep 27 04:40:48 oh hrm i wouldn't put it there Sep 27 04:40:50 but that's just me Sep 27 04:40:59 i'd put it in /etc/systemd/system Sep 27 04:41:09 yeah idk about pins and such Sep 27 04:41:29 Okay...I have a Debian Distro with kernel 4.9.x on it. Sep 27 04:41:37 I mostly just do software stuff, learning a bit of hardware Sep 27 04:42:28 Oh. I am running some motors to go forward and then make a u-shape before going forward again, i.e. two motors. Sep 27 04:42:52 cool Sep 27 04:43:15 Yep. I have this metal piece of something. It runs but I need it to mow in lines without going to far. Sep 27 04:43:43 Then, once it reaches the end, it turns 180 degrees and then goes back the way it came. Sep 27 04:44:23 I got as far as 50 cycles of the motors and the u-turn. Sep 27 04:44:38 ... Sep 27 04:44:50 thats pretty cool Sep 27 04:45:04 The issue is that I do not know just how far 50 cycles of the motors is in feet. Sep 27 04:45:21 annd i am not the right person to ask about that :P Sep 27 04:45:29 so, I need it to be around the length of my yard. Sep 27 04:45:30 Okay. Sep 27 04:45:48 The bbb does the brains and the motors are the muscle. Sep 27 04:46:06 So... Sep 27 04:46:15 Back to services and startup scripts? Sep 27 04:46:19 ... Sep 27 04:46:21 sure Sep 27 04:46:24 Cool! Sep 27 04:46:45 the Type value will be important Sep 27 04:47:01 Type=oneshot will run once and after the script is done it wont run again Sep 27 04:47:12 Type=simple will run and if the script exits it will restart it Sep 27 04:47:12 Perfect. Sep 27 04:47:19 Okay. Sep 27 04:47:51 So, let me get my bearings on this quickly. Please hold. Sep 27 04:47:58 sure thing Sep 27 04:48:00 * thefinn93 holds Sep 27 04:48:09 Ha! Sep 27 04:49:47 I do not see where it states type. I see line 10 where it states Restart=always Sep 27 04:50:29 oh sorry, i was referring to the one you linked Sep 27 04:50:35 mine doesn't have a Type value Sep 27 04:50:38 Oh...okay. Sep 27 04:50:39 the default is simple Sep 27 04:50:43 so mine will use that Sep 27 04:51:09 if you want to use oneshot, just add it below the [Service] heading Sep 27 04:51:27 you'll also probably want to modify the user and group that it runs as Sep 27 04:51:42 Okay...do I need to add anything else? For instance, ExecStart? Sep 27 04:51:52 ExecStart and Description Sep 27 04:51:58 like, my service is called taco.service. Sep 27 04:52:06 okay Sep 27 04:52:34 put the command you want in ExecStart Sep 27 04:52:54 note that you have to provide the full path to the binary, there is no default $PATH Sep 27 04:53:25 so eg if it's python you'd do /usr/bin/python /path/to/script.py Sep 27 04:53:47 Okay... Sep 27 04:54:16 So: Sep 27 04:54:59 [Unit] Sep 27 04:54:59 Description=Enable I2C pins Sep 27 04:54:59 After=generic-board-startup.service Sep 27 04:54:59 [Service] Sep 27 04:54:59 Type=simple Sep 27 04:54:59 ExecStart=/usr/bin/enable-i2c-pins.sh Sep 27 04:55:00 [Install] Sep 27 04:55:00 WantedBy=multi-user.target Sep 27 04:55:09 ... Sep 27 04:55:24 Description=Whatever Sep 27 04:55:24 okay for future reference, anything over 3 lines goes in a paste service Sep 27 04:55:32 Okay. Sep 27 04:55:54 some channels will auto-kick-ban you, apparently not this one though :) Sep 27 04:56:11 After=generic-board-startup.service Sep 27 04:56:17 I will pastbin it. Sep 27 04:56:21 mk Sep 27 04:56:22 ...Please hold. Sep 27 04:58:37 https://pastebin.com/icPRRdqQ should show what in the hell I understand versus what is really going on. Sep 27 04:59:39 looks about right Sep 27 04:59:45 not sure how well quotes will work out Sep 27 04:59:55 on the ExecStart line Sep 27 05:00:01 I am going to try it again. Oh, do not worry. i will not use those quotes. Sep 27 05:00:04 i'd suggest pasting what you actually use Sep 27 05:00:08 Okay. Sep 27 05:00:11 Please hold. Sep 27 05:00:14 your filesystem can't be that secret Sep 27 05:00:21 it is not. Sep 27 05:02:19 https://pastebin.com/tyUg8Wat Sep 27 05:03:10 okay, should work Sep 27 05:03:11 I can cp that file to another directory if necessary but it has to be in the MotorBridgeCapeforBBG_BBB/BBG_MotorBrigeCape directory. Sep 27 05:03:22 ... Sep 27 05:03:28 Cool, I will try it. Sep 27 05:03:33 does it need to be executed from a particular directory? Sep 27 05:03:45 also, does the file have a #! line? Sep 27 05:03:50 No. Sep 27 05:03:55 it'll need one of those Sep 27 05:04:00 or give the path to the interperter Sep 27 05:04:21 ExecStart=/usr/bin/python3 /var/lib/cloud9/MotorBridgeCapeforBBG_BBB/BBG_MotorBridgeCape/DCIII.py Sep 27 05:04:42 (unless you use ancient python 2.x, in which case /usr/bin/python /var/lib/cloud9/MotorBridgeCapeforBBG_BBB/BBG_MotorBridgeCape/DCIII.py) Sep 27 05:04:58 Dang. So, for a .py file, it is #!/bin/python? Sep 27 05:05:10 I use 2.7.x. Sep 27 05:05:14 jesus Sep 27 05:05:19 Ha! Sep 27 05:05:54 anyway, it's usually #!/usr/bin/env python Sep 27 05:06:08 Okay. Sep 27 05:06:20 then you need to run chmod +x on it Sep 27 05:06:23 chmod +x /var/lib/cloud9/MotorBridgeCapeforBBG_BBB/BBG_MotorBridgeCape/DCIII.py Sep 27 05:06:34 Right. Sep 27 05:08:57 then you'll need to make it automatically start: systemctl enable taco.service Sep 27 05:09:05 Ha! Sep 27 05:09:07 Okay. Sep 27 05:09:24 and if you want to start it without rebooting, systemctl start taco.service Sep 27 05:13:37 ...well. Sep 27 05:13:50 That was an issue for me for some amount of time now. Sep 27 05:14:12 It is late. I am going to try this out tomorrow most likely. Sep 27 05:14:18 ok Sep 27 05:16:05 That you, thefinn93. Sep 27 05:16:11 np Sep 27 05:16:33 I can use this now for starting scripts when they are not .js files. Sep 27 05:17:11 The autorun folder on our systems, BBB and variants, has a .js file fondness or something. Sep 27 05:17:18 ... Sep 27 05:19:02 Anyway...if you need anything for promoting motors to run, let me know. Sep 27 05:19:14 I like to dabble in making two motors do things with specific software. Sep 27 05:21:45 Cool Sep 27 05:22:10 Yeah idk what the beaglebone software does by default Sep 27 05:22:17 I try to avoid using it Sep 27 05:22:46 Its like "Debian" but heavily modified in crazy ways that make me scared Sep 27 05:25:13 It is just something more to learn, I guess. Sep 27 05:31:54 I opted for building clean Debian, seemed to work fine and with much less surpises Sep 27 05:32:43 Well, clean ish. Found some shit on GitHub that would build images without all the crazy additions like cloud9 Sep 27 05:33:17 Which seems to be a glorified web-based backdoor for anyone on the same network last I checked Sep 27 05:34:08 Some people like Cloud9 while others dislike it. I noticed. Sep 27 05:36:30 My only issue is having it pre-loaded with no warning Sep 27 05:37:05 Oh...I dislike that it makes me program software more. I found that I cannot copy and paste when I choose. Sep 27 05:37:31 I need practice but sometimes I am just lazy. Sep 27 05:37:50 Oh, I never got beyond realizing what it was and removing it as quickly as possible Sep 27 05:38:15 Should I be paranoid about Cloud9? Sep 27 05:38:38 Idk Sep 27 05:38:58 Haha. I guess not. It is just another IDE. Sep 27 05:39:39 No other IDE that I'm aware of provides full access to your system to anyone on the same network Sep 27 05:39:45 If someone wanted info, they could get it. People are way more talented than me and they can use their own software. Sep 27 05:39:55 Damn. I did not know that. Sep 27 05:40:11 Maybe they fixed it since I looked last Sep 27 05:40:16 I doubt it Sep 27 05:40:19 Maybe so. Sep 27 05:40:48 Who knows? Sep 27 05:41:03 I do not care so much. I do not go to diners with free WiFi. Sep 27 05:41:07 thefinn93: at least you can no longer (by default) log in as root with blank password :P Sep 27 05:41:37 thefinn93: and of course now plenty of people complain about that since they considered it convenient Sep 27 05:41:59 Oh they fixed that finally? Sep 27 05:42:08 Still never using any software from them ever Sep 27 05:42:46 though it still tells you the default username and password when you try to log in, and that user is a sudoer... so yeah :P Sep 27 05:43:06 Lol Sep 27 05:43:08 and yet we still get people here who are unable to log in Sep 27 05:43:37 I'm not sure there's an easy fix for all this Sep 27 05:44:07 I think for quite a few users it makes enough sense to just be able to log in if you're on the same physical network Sep 27 05:44:22 (and cloud9 isn't really any more of a security threat then either) Sep 27 05:44:33 Fine but distribute that separately and with large warnings Sep 27 05:46:53 That's not okay for the default os Sep 27 05:46:54 don't get me wrong, I don't use it either :P I've always started with a console image, removed any crap I don't care about, and installed stuff I do care about Sep 27 05:47:27 It's okay for the default os of an "tinkering" embedded system I think Sep 27 05:48:06 but it would be nice to maybe have a setup wizard to configure such choices initially Sep 27 05:48:06 Maybe at least distribute a secure one and don't call the insecure one "Debian" Sep 27 05:48:49 * zmatt shrugs Sep 27 05:49:03 I kinda agree, but I also kinda get their approach Sep 27 05:49:48 at least security improved over time, maybe it eventually ends up with secure defaults (if they can figure out a way to make that usable) Sep 27 11:09:02 BBBW noob here. Could anyone help me with configuring uEnv and UARTs & SPI? Sep 27 11:09:11 I have some questions about it Sep 27 11:13:44 start out by ensuring you are running a recent image Sep 27 11:17:06 Hmmm I'm using bone-debian-9.1-iot-armhf-2017-08-31-4gb.img Sep 27 11:17:25 Should I use bone-debian-9.1-iot-armhf-2017-09-21-4gb.img.xz ? Sep 27 11:24:41 sounds recent enough Sep 27 11:25:16 please note that most of the "guides" and "exactsteps' you'll find on the internet are heavily outdated in this respect Sep 27 11:27:09 Something I haven't understood, even the other times. With my BBBW I want to run it with the SD. So I turn emmc off Sep 27 11:27:28 But sometimes they say to push USR button while it's booting or something similar Sep 27 11:27:50 Why? Should I do it now that I burnt the latest image in the SD card? Sep 27 11:28:11 In my BBBW I have RESET, POWER and S2 button Sep 27 11:28:40 how did you disable the eMMC? Sep 27 11:29:12 I usually edit uEnv.txt once I ssh into the BB Sep 27 11:29:29 With 31/08/17 image I uncommented disable_uboot_overlay_emmc=1 Sep 27 11:29:38 I think it's enough Sep 27 11:30:30 actually there are things that are active way before that will apply Sep 27 11:30:51 e.g. it's possible that SPL and U-Boot itself will be read from eMMC Sep 27 11:31:18 holding down the S2 button prevents that, so does wiping the first few hundred kb of the eMMC Sep 27 11:31:31 Only the first time, right? Sep 27 11:32:03 until a hard reset or power down Sep 27 11:32:09 in case of S2 Sep 27 11:32:33 Hmmm everytime I turn my BB on? Sep 27 11:33:26 With usb or the 5V plug Sep 27 11:35:23 For example. Now: Sep 27 11:35:35 - Burnt the latest image with Etcher Sep 27 11:35:54 - Holding S2, I plugged the usb into BBBW Sep 27 11:36:02 PWR led is on but nothing is happening Sep 27 11:36:12 I released s2 but nothing is not booting Sep 27 11:38:13 I unplugged usb and plugged it, without holding s2 and now it's booting Sep 27 11:43:57 Ok now I'm in. I edited uEnv.txt disabling emmc and video Sep 27 11:44:08 Reboot Sep 27 11:44:17 Should I see cape_universal in my slots? Sep 27 11:44:43 There is not Sep 27 11:45:18 ? Sep 27 11:56:17 if it does not boot with s2 held down, then your SD card is not properly prepared Sep 27 11:58:03 Hmmm I can retry even if I didn't nothing special but download+etcher+put the sd in Sep 27 11:58:17 What about my previous questions? Sep 27 11:58:26 do you have anything on the emmc that you need? Sep 27 11:59:44 Nope Sep 27 12:00:05 Never used it Sep 27 12:00:43 remove the sd-card, boot the bone, dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=1 Sep 27 12:00:51 that will permanently wipe your eMMC Sep 27 12:01:04 then you also don't need to press S2 to boot from SD card Sep 27 12:02:07 Hm I'll do it now Sep 27 12:02:37 A question. I will need, for example, 100 BBBW with all the same config Sep 27 12:02:57 Shall I erase all their emmc first? Sep 27 12:03:14 Can't I make 100 sd cards and just put them inside and turn the BB on? Sep 27 12:03:16 :/ Sep 27 12:03:22 that depends on what you plan to do Sep 27 12:03:52 They will have sensors and connectivity Sep 27 12:04:05 I expect to have the same pins active on every boards Sep 27 12:05:28 you could incorporate the necessary functionality into your SD-card image (check if eMMC is blanked, if not blank the first 1MByte) Sep 27 12:06:13 or make a flasher card to flash tha image onto each BBBW's eMMC Sep 27 12:06:21 *that image Sep 27 12:06:31 or that Sep 27 12:06:40 Right Sep 27 12:06:46 that's why I said it depends Sep 27 12:06:55 there are many ways to skin a beagle Sep 27 12:07:32 I'll have lunch and I will try to erase emmc Sep 27 12:09:44 blkdiscard /dev/mmcblk1 Sep 27 12:14:43 (will erase entire eMMC) Sep 27 12:18:35 much more elegant, indeed Sep 27 12:25:43 Ok blkdiscarded Sep 27 12:26:08 Now, put the sd in, boot without s2 held? Sep 27 12:28:33 yes Sep 27 12:28:50 you can first verify by not putting in a sd card Sep 27 12:28:54 and powering it up Sep 27 12:28:58 it should not do anything Sep 27 12:29:56 Yep confirmed Sep 27 12:30:18 good, then you can now be sure that whatever you do is only SD card related Sep 27 12:30:56 that's the main reason I suggested it. It can easily happen that you get confused by U-Boot being loaded from e.g. eMMC and being a different version or differently configured Sep 27 12:34:06 Ok now I see GPIO allocated in my dmesg Sep 27 12:34:07 but debian@beaglebone:~$ cat /sys/devices/platform/bone_capemgr/slots cat: /sys/devices/platform/bone_capemgr/slots: No such file or directory Sep 27 12:34:31 Is it ok? :/ Sep 27 12:34:44 (I'm still here) Sep 27 12:36:43 which kernel is that image running? Sep 27 12:36:54 also not sure where that should reside currently Sep 27 12:37:00 Linux beaglebone 4.4.88-ti-r125 Sep 27 12:37:59 find /sys |grep capemgr Sep 27 12:40:06 https://pastebin.com/kGSs5Cs0 Sep 27 12:40:32 The file /sys/firmware/devicetree/base/bone_capemgr/#slots is empty Sep 27 12:41:55 try throwing some dtbo files at it? or whatever was the way to load slots Sep 27 12:42:58 What do you mean? Sep 27 12:44:31 https://github.com/beagleboard/bb.org-overlays/blob/master/readme.md#capemgr-enabledisable-capes-with-slots Sep 27 12:45:03 though I'm a bit confused that there is a hash character in your slots file Sep 27 12:45:33 Me too :/ Sep 27 12:46:16 The kernel became social lol Sep 27 12:46:42 you could try this (correct the path?): sudo sh -c "echo 'BB-UART1' > /sys/devices/platform/bone_capemgr/slots" Sep 27 12:47:38 oot@beaglebone:/home/debian# sudo sh -c "echo 'BB-UART1' > /sys/devices/platform/bone_capemgr/slots" sh: 1: cannot create /sys/devices/platform/bone_capemgr/slots: Permission denied Sep 27 12:47:44 Note that I was root Sep 27 12:47:54 (correct the path?) Sep 27 12:48:18 try /sys/firmware/devicetree/base/bone_capemgr/#slots Sep 27 12:48:24 Ok I'll try Sep 27 12:48:30 not sure if that's the right thing Sep 27 12:49:26 Permission denied Sep 27 12:50:16 try the uEnv.txt route? Sep 27 12:51:13 Already edited it Sep 27 12:51:13 https://pastebin.com/ERJiU6dB Sep 27 12:51:27 disable_uboot_overlay_emmc=1 Sep 27 12:51:27 disable_uboot_overlay_video=1 Sep 27 12:51:35 enable_uboot_cape_universal=1 Sep 27 12:52:01 Do you mean, opening uart via bone_capemgr.enable_partno= ? Sep 27 13:00:08 yes Sep 27 13:07:40 Let me try Sep 27 13:22:11 Hmm I added Sep 27 13:22:12 cape_enable=bone_capemgr.enable_partno=BB-UART1 Sep 27 13:22:46 dev /dev/ttyS1 was there even before Sep 27 13:24:07 I have a sensor plugged to UART1_RXD but the script is not reading ttyS1 Sep 27 13:24:21 Something is not working :/ Sep 27 13:24:25 Should I try another image? Sep 27 13:24:28 Gorgo_: there's no need to load an overlay for that Sep 27 13:24:42 you need to configure the pins with config-pin Sep 27 13:25:13 Even if my slots file is missing? Sep 27 13:26:23 Gorgo_: that is a bit odd Sep 27 13:26:34 config-pin won't care, but it's still odd Sep 27 13:26:39 Hmmm ok it's working after config-pin p9.26 :) Sep 27 13:27:30 tbr: nothing in /sys/firmware is writeable Sep 27 13:27:47 in /sys/firmware/devicetree/base I mean Sep 27 13:29:09 Gorgo_: also, using sudo when you're already root is completely pointless Sep 27 13:30:11 Right :D Sep 27 13:36:23 I'm trying SPI0 now Sep 27 13:54:39 Hmmm in order to ssh -X to my BB, is it ok installing xorg? Sep 27 13:54:59 uhhhh Sep 27 13:55:29 you don't need xorg (X server) to run X clients via ssh X11 forwarding Sep 27 13:56:12 Hmmm If I run my camera q4 app, it returns Sep 27 13:56:12 cannot connect to X server Sep 27 13:56:36 I've installed qt4-dev-tools as described here Sep 27 13:56:41 https://github.com/groupgets/LeptonModule/tree/master/software/beagleboneblack_video Sep 27 13:58:06 this is a camera connected via spi ? Sep 27 13:58:26 Yes Sep 27 13:58:28 And i2c Sep 27 13:58:29 ah, flir Sep 27 13:59:24 you want to display the video to a display connected to the beaglebone? Sep 27 13:59:36 or via ssh X11 forwarding to your own computer? Sep 27 14:00:44 Hmmm via ssh to my pc Sep 27 14:00:47 for the latter, I'm pretty sure that you don't need to install any additional packages on the beaglebone, just use ssh -X from a linux system to the beaglebone and it should work Sep 27 14:01:39 Ok I logged out and relogged it and it's working :O Sep 27 14:01:46 I was with -X before as well Sep 27 14:02:09 ¯\_(ツ)_/¯ Sep 27 14:02:34 ༼ ºل͜º ༽ Sep 27 14:03:12 maybe your beaglebone heard me saying that it should work, and it was like "oh, it should? crap, I'll stop pretending it doesn't then" Sep 27 14:04:02 ;) Sep 27 14:04:43 Ahahah the AI is moving forward lately Sep 27 15:01:49 Using ttyS5 or ttyO5 is the same thing? Sep 27 15:02:00 *ttyO5 Sep 27 15:04:57 Gorgo_: S5 and O5 differs between which driver. Usually they are the same thing. Sep 27 15:24:38 Hello, I was reading up on the IRC archives about someone that had a similar issue but it never was resolved. I am dealing with a "RuntimeError: Unable to export UART channel" when I run my python code after importing the Adafruit PyBBIO library. I went into more detail on StackOverflow if you think this might be something you can help fix: https://stackoverflow.com/questions/46437393/unable-to-export-uart-channel-on-beaglebone Sep 27 15:30:24 probably means the PyBBIO library is outdated or broken Sep 27 15:31:19 actually, I don't think you need it for anything at all, just use the serial module Sep 27 15:32:53 Gorgo_: only one of the two is real, the other is a symlink Sep 27 15:33:16 (the symlink is created for backwards compatibility) Sep 27 15:33:57 I can get my code working flawlessly when I connect my device via usb port Sep 27 15:34:05 however, this port is taken on the final project Sep 27 15:34:58 * zmatt stares confusedly at spaceman Sep 27 15:35:04 what does usb have to do with serial? Sep 27 15:36:16 nothing apparently haha. I'm a bit new to beaglebone..and programming on it in general Sep 27 15:36:47 so you're talking about the pins that are just inside the P9? Sep 27 15:39:33 you were talking about the Adafruit_BBIO UART module. I immediately guessed that the error is due to the module doing something silly and/or obsolete. (overall the Adafruit stuff is pretty crappy and poorly maintained) Sep 27 15:40:11 upon taking a closer look, I noticed that its UART module actually performs no useful function at all anymore and can simply be removed Sep 27 15:40:47 the code snippet you linked to already uses the 'serial' module for the actual serial communication, that part is fine Sep 27 15:41:37 be sure to configure the pins you want to use for uart communication using the 'config-pin' tool Sep 27 15:42:36 Huh, interesting. Maybe some project background might help as well. I have an arduino that is connected to an array of sensors, in the console I can turn on a sensor through the serial console like { t 1 }....this would turn the temperature sensor on and display on the console. Now I've been tasked with being able to "talk" to the arduino serial console through a beaglebone. I developed some python code that reads and writes to and Sep 27 15:42:46 needed to move it to a UART pinout I thought Sep 27 15:43:11 config-pin tool, hmm, that's definitely not in my code Sep 27 15:44:23 it's a commandline utility to configure pins (hence the name) Sep 27 15:46:59 note: be careful when interfacing with an external microcontroller that has its own power supply. you should ensure that no external voltage is being applied to the beaglebone's I/O pins when the beaglebone is powered down Sep 27 15:47:36 Alright zmatt, thanks so far. Looks like I have a write error "no such file or directory" error loading device tree overlay file: cape-universala Sep 27 15:47:48 when trying to config P9_21 as a uart Sep 27 15:47:57 (powering the external microcontroller from the beaglebone's 3.3v supply is a possibly solution, if it can be powered from 3.3v and the bbb can supply enough current) Sep 27 15:48:05 it said I needed to config-pin overlay cape-universala Sep 27 15:48:11 uhh, have you made changes to /boot/uEnv.txt ? Sep 27 15:48:20