5,710
edits
Changes
→Hardware
[[Home | <<< back to Wiki Home]] =Setup===Change Hostname==<syntaxhighlight lang="bash">sudo vi /etc/hostname</syntaxhighlight><syntaxhighlight lang="bash">sudo vi /etc/hosts</syntaxhighlight>==Add public key==<syntaxhighlight lang="bash">cat ~/.ssh/id_rsa.pub | ssh debian@beaglebone1.local "mkdir ~/.ssh; cat >> ~/.ssh/authorized_keys"</syntaxhighlight>==Debloat==http://kacangbawang.com/beagleboneblack-revc-debloat-part-1/==Install devmem2==https://scivision.co/devmem2-on-the-beaglebone-black/==Install Adafruit BBBIO==https://github.com/adafruit/adafruit-beaglebone-io-python==Install ==Textmate and rmate for simple remote editing=Reference=*install textmate on os x system*install ruby on beaglebone:<syntaxhighlight lang="bash">opkg install ruby</syntaxhighlight>*install rmate on beaglebonei:<syntaxhighlight lang="bash">gem install rmate</syntaxhighlight>*setup ssh tunneling<syntaxhighlight lang="bash">ssh -R 52698:localhost:52698 pi@192.168.2.144</syntaxhighlight> ==Disable default services==<syntaxhighlight lang="bash">systemctl disable bone101 systemctl disable cloud9 systemctl disable gateone</syntaxhighlight> ==Copy OS to microSD card==*Download OS (.img.xz)*unzip*figure out what your card is. check df before and after inserting the card:<syntaxhighlight lang="bash">df -h</syntaxhighlight>*unmount the drive:<syntaxhighlight lang="bash">diskutil unmountDisk /dev/disk2s1</syntaxhighlight>*copy image to drive:<syntaxhighlight lang="bash">dd if=Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.06.20.img of=/dev/rdisk2 bs=1m</syntaxhighlight>==Default boot from SD card==*boot beaglebone while holding the S2 button (by SD card reader). this boots from the sd card.*rename the MLO file from /media/BEAGLEBONE/ :<syntaxhighlight lang="bash">cd /media/BEAGLEBONEmv MLO MLO_bak</syntaxhighlight>*The beaglebone will now boot from microSD until you replace the MLO file. ==Edimax WiFi fix==for debian 3.8.13-bone70 *http://www.feverlabs.org/2015/03/edimax-wifi-adapter-on-beaglebone-black/Basically, disable HDMI output. likely due to HDMI interference. alternately, use a usb extension cable :) *boot wifi<syntaxhighlight lang="bash">sudo ifup wlan0</syntaxhighlight>if it works...<syntaxhighlight lang="bash">sudo ifup wlan0ioctl[SIOCSIWAP]: Operation not permittedioctl[SIOCSIWENCODEEXT]: Invalid argumentioctl[SIOCSIWENCODEEXT]: Invalid argumentInternet Systems Consortium DHCP Client 4.2.2Copyright 2004-2011 Internet Systems Consortium.All rights reserved.For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/wlan0/80:1f:02:bf:23:52Sending on LPF/wlan0/80:1f:02:bf:23:52Sending on Socket/fallbackDHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5DHCPREQUEST on wlan0 to 255.255.255.255 port 67DHCPOFFER from 10.1.10.1DHCPACK from 10.1.10.1bound to 10.1.10.121 -- renewal in 4605 seconds.</syntaxhighlight> *adafruit wifi reset script: https://learn.adafruit.com/setting-up-wifi-with-beaglebone-black?view=all *<syntaxhighlight lang="bash">iwconfig</syntaxhighlight> ==What Kernel am I running==*<code>uname -a</code> ==other==*a lot of good setup stuff here: http://www.gigamegablog.com/2012/01/29/beaglebone-linux-101-configuring-angstrom-linux/ =Debugging===Find Beaglebone on Local Network==*MAC Address: C8:A0:30:AB:71:1D (Texas Instruments)Nmap scan report for 192.168.2.31**Scan for BBB:<syntaxhighlight lang="bash">sudo nmap -sP 192.168.2.* | awk '/^Nmap/{ip=$NF}/C8:A0:30/{print ip}'</syntaxhighlight>==TTL Cable==*Install USB drivers**for os x - http://sourceforge.net/projects/osx-pl2303/*Connect pins like so:http://www.adafruit.com/images/large/954bbb_LRG.jpg (RED IS NOT CONNECTED)*From Terminal, start session:**<code>screen /dev/cu.usbserial 115200</code>*http://learn.adafruit.com/adafruits-raspberry-pi-lesson-5-using-a-console-cable/test-and-configure ==ssh not working==*https://groups.google.com/forum/?fromgroups#!topic/beagleboard/Ya2qE4repSY==want to allow processes to keep running?==*https://groups.google.com/forum/#!msg/beagleboard/-iNTsNh94HI/faELHCJn_esJ =OpenCV===python-opencv==*install python opencv bindings:<syntaxhighlight lang="bash">opkg install python-opencv</syntaxhighlight> =potrace=*http://potrace.sourceforge.net/#downloading=gphoto2=*install libusb-1.0-dev<syntaxhighlight lang="bash">opkg install libusb-1.0-dev</syntaxhighlight>*download libgphoto2 **http://sourceforge.net/projects/gphoto/files/libgphoto/*download gphoto2 **http://sourceforge.net/projects/gphoto/files/gphoto/2.5.2/*build and install libusb, libgphoto2, then gphoto2:<syntaxhighlight lang="bash">./configuremakemake install</syntaxhighlight> =Onboard LEDs=*flashing an led by hand from terminal: http://elinux.org/EBC_Exercise_10_Flashing_an_LED =GPIO ===PyBBIO==*https://github.com/alexanderhiam/PyBBIO*https://github.com/alexanderhiam/PyBBIO/issues/18==other==gpio - http://beaglebone.cameon.net/home/using-the-gpios =Hardware===Rechargeable LiPo==http://www.element14.com/community/community/designcenter/single-board-computers/next-gen_beaglebone/blog/2013/08/10/bbb--rechargeable-on-board-battery-system==Real Time Clock (RTC)==http://www.dfrobot.com/image/cache/data/DFR0151/V1.1/IMGP9616-600x600.jpg*TinyRTC 1.1 - http://www.dfrobot.com/index.php?route=product/product&product_id=879#.UqdVqmT6f3E**Remove RA1 to operate at 3.3V. (This is an array of pullup resistors for pins SDA - SQ)*http://learn.adafruit.com/adding-a-real-time-clock-to-beaglebone-black/overview ==C920=====software===*boneCV - https://github.com/derekmolloy/boneCV/===capturing===*capture 300 frames of H264 at 1920 x 1080 to output.raw:<syntaxhighlight lang="bash">capture -F -o -c 300 > output.raw</syntaxhighlight>*capture and convert with audio:<syntaxhighlight lang="bash">./capture -F -o -c0|avconv -re -i - -f alsa -ac 2 -i hw:1,0 -strict experimental -threads 0 -acodec aac -ab 64k -ac 2 -vcodec copy avtest.mp4scp avtest.mp4 rtwomey@192.168.2.31:~/Movies</syntaxhighlight> from [http://nerdlogger.com/2013/11/09/streaming-1080p-video-using-raspberry-pi-or-beaglebone-black/ here] ===convert to mpg4===<syntaxhighlight lang="bash">raw2mpg4</syntaxhighlight>or<syntaxhighlight lang="bash">ffmpeg -f h264 -i output.raw -vcodec copy output.mp4</syntaxhighlight> ===formats===<syntaxhighlight lang="bash">v4l2-ctl --list-formats-ext</syntaxhighlight>*set resolution:<syntaxhighlight lang="bash">v4l2-ctl --set-fmt-video=width=960,height=720,pixelformat=1</syntaxhighlight>* ===streaming===*http://www.oz9aec.net/index.php/beaglebone/476-turning-the-beaglebone-into-a-high-definition-ip-camera*RTP - http://derekmolloy.ie/streaming-video-using-rtp-on-the-beaglebone-black/*UPD - multicast - http://derekmolloy.ie/udp-video-streaming-beaglebone-black/ ===dash cam===*http://zachhuff386.github.io/dashcam/**BeagleBone Black (16gb/1080p/30fps/Logitech C920): 9 hrs 30 mins ==Servo==*https://groups.google.com/forum/?fromgroups#!topic/beagleboard/NBm14riUIts*https://groups.google.com/forum/?fromgroups#!topic/beagleboard/wjbOVE6ItNg**implementation in bonescript https://github.com/jadonk/bonescript/blob/master/node_modules/bonescript/index.js*by hand http://www.phys-x.org/rbots/index.php?option=com_content&view=article&id=106:lesson-3-beaglebone-black-pwm&catid=46:beaglebone-black&Itemid=81 =Serial Communication===Ubuntu==*use wget to fetch setup tools:**<code>wget https://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg#md5=fe1f997bc722265116870bc7919059ea</code>*install setuptools:**<code>sudo sh setuptools-0.6c11-py2.7.egg</code>*install pyserial:**<code>sudo easy_install pyserial</code>==Angstrom==*update opkg:**<code>opkg update</code>*install pyserial:**<code>opkg install python-pyserial</code> =Pockesphinx=*https://groups.google.com/forum/?fromgroups=#!topic/beagleboard/aBznzq_bNuU*Install libasound2, alsa-dev, and alsa-lib-dev. (libasound and alsa-lib-dev were already installed on my beaglebone black):**<code>opkg install alsa-dev</code>*Get sphinxbase and pocketsphinx, preferrably putting them in a code directory:**<code>wget http://sourceforge.net/projects/cmusphinx/files/sphinxbase/0.8/sphinxbase-0.8.tar.gz</code>**<code>wget http://sourceforge.net/projects/cmusphinx/files/pocketsphinx/0.8/pocketsphinx-0.8.tar.gz</code>*Unzip:**<code>tar -xzf sphinxbase-0.8.tar.gz</code>**<code>tar -xzf pocketsphinx-0.8.tar.gz</code>*Generate configuration files. '''Configure without python.''' In the sphinxbase-0.8 directory:**<code>./autogen.sh --without-python</code>=Supercollider=*http://supercollider.github.io/development/building-beagleboneblack.html =Audio=*purchase usb sound card.*connect stereo microphone. *record audio with arecord:**<code>arecord -D sysdefault -t wav -c 2 -r 44100 -f S16_LE -v binaural2.wav</code>*play audio:**<code>aplay binaural2.wav</code>*use the ALSA mixer to set recording levels, output levels, etc.:**<code>alsamixer</code> =Debian=*http://elinux.org/BeagleBoardDebian=Installing Ubuntu=*The instructions below are written for linux. I installed from a Ubuntu live USB drive (Ubuntu 13) on my macbook pro (os x 10.8).*Once you are booted in ubuntu on your non-beagleboard system, follow instructions here: **http://elinux.org/BeagleBoardUbuntu#Method_1:_Download_a_Complete_Pre-Configured_Image*there will probably be missing packages*you may need to add universe to package repository to get those missing packages:**<code>sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe restricted multiverse"</code>*list disks:**<code>diskutil list</code> =Curses=*install python-curses:**<code>opkg install python-curses</code>=Oki Data Microline 320/1Turbo=*plug in Sabrent usb to parallel adapter*should show up in device tree as: /dev/usb/lp0*echo arbitrary text to lp0 from bash shell:<syntaxhighlight lang="bash">echo "I didn't realize it could be so fast" > /dev/usb/lp0</syntaxhighlight>*print to lp from python:<syntaxhighlight lang="python">lp = open("/dev/lp0","w")lp.write("Hello World!\n")lp.close()</syntaxhighlight>http://rosettacode.org/wiki/Hello_world/Line_printer#Python==CUPS on beaglebone==*Install CUPS: <syntaxhighlight lang="bash">opkg install cups</syntaxhighlight>*List available printers:<syntaxhighlight lang="bash">lpinfo -v</syntaxhighlight>*Add ML320 as new printer:<syntaxhighlight lang="bash">lpadmin -p ML320 -E -v usb://OKI%20DATA%20CORP/ML320/1TURBO</syntaxhighlight>*Enable ML320:<syntaxhighlight lang="bash">cupsenable ML320</syntaxhighlight>*https://groups.google.com/forum/#!topic/beagleboard/Tn-rQfOdEPg*https://wiki.archlinux.org/index.php/CUPS_printer-specific_problems=OSC messaging on the beaglebone=*http://das.nasophon.de/pyliblo/*http://liblo.sourceforge.net/ =Run a Script on Login (Start a Service)===Make a Shell Script=='''launch_mirror.sh''' - launches my python script as detached screen session<syntaxhighlight lang="bash">#!/bin/bash cd /home/root/convexmirror/usr/bin/screen -dmS mirror /home/root/convexmirror/convex_mirror.py</syntaxhighlight>make the scrip user executable<syntaxhighlight lang="bash">chmod u+x</syntaxhighlight> ==Make a Service==make a service file: <syntaxhighlight lang="bash">vi /lib/systemd/system/cvxmirror.service</syntaxhighlight>'''cvxmirror.service''': <syntaxhighlight lang="bash">[Unit]Description=Runs looping convex mirror codeAfter=syslog.target network.target [Service]Type=forkingExecStart=/home/root/convexmirror/launch_mirror.sh [Install]WantedBy=multi-user.target</syntaxhighlight>make links:<syntaxhighlight lang="bash">cd /etc/systemd/system/ln /lib/systemd/system/cvxmirror.service cvxmirror.service</syntaxhighlight>make system take notice: <syntaxhighlight lang="bash">systemctl daemon-reload</syntaxhighlight>start service manually: <syntaxhighlight lang="bash">systemctl start cvxmirror.service</syntaxhighlight>stop service manually: <syntaxhighlight lang="bash">systemctl stop cvxmirror.service</syntaxhighlight>enable on startup: <syntaxhighlight lang="bash">systemctl enable cvxmirror.service</syntaxhighlight> '''Run and don't exit'''call bash afterwards. it will keep the screen process open<syntaxhighlight lang="bash">/usr/bin/screen -dmS printing bash -c '/home/debian/children/okidata_udp_server.py; exec bash'</syntaxhighlight>'''Run service on network boot'''<syntaxhighlight lang="bash">After=syslog.target network-online.target</syntaxhighlight> http://www.nunoalves.com/open_source/?p=308http://kezhong.wordpress.com/2011/11/19/creating-my-own-systemd-service-files-on-fedora-16x86_64/ =Other=
*video on C++ programming with Beaglebone - http://www.youtube.com/watch?feature=endscreen&NR=1&v=vFv_-ykLppo
*Contest. Win 2 free beagleboards - http://elinux.org/BeagleBoard/contest