Install on raspberry
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sudo ldconfig | sudo ldconfig | ||
| − | == | + | == Mobotware == |
| − | + | [[Mobotware on raspberry]] | |
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Revision as of 10:41, 23 December 2020
Short note on installation of (parts of) mobotware on Raspberry Pi (or Beagle-bone)
Contents |
Prerequisite
- Raspberry pi - version 3 or 4
- SD-card preferably at least 16Gb
- Monitor with HDMI (version 3) or micro HDMI (version 4) cable
- keyboard - and optional a mouse
- Access to network (wired or wifi)
- Power - either an USB charger or cable to a PC (micro USB (version 3) or USB-C (version 4)
Make SD card a FAT32 partision, if reusing an old card
A new SD-card is fine as is, else
see http://qdosmsq.dunbar-it.co.uk/blog/2013/06/noobs-for-raspberry-pi/ for instruction to prepare any old or new SD-card
Add boot-files to SD card
Get the install zip-file from https://www.raspberrypi.org/downloads/noobs/
Then unpack NOOBS zip-file to the new disk (use the newest version), like for the network version
unzip NOOBS_lite_v3_5_1.zip -d /media/xxx/yyyy or unzip ~/Downloads/raspberry/NOOBS_lite_v3_5_1.zip (if you are on the empty flash)
or for the full version
unzip NOOBS_v3_5_1.zip -d /media/xxx/yyyy or unzip ~/Downloads/raspberry/NOOBS_v3_5_1.zip (if you are on the empty flash)
Reboot
- Insert SD card on Raspberry,
- Mount a heatsink - especially needed on version 4,
- Connect monitor, keyboard and power
That is all, Raspberry should boot on that, and take some time to prepare the SD-Card. Or see instructions on e.g.: https://www.raspberrypi.org/help/noobs-setup/
- Boot the raspberry and install the Raspberry Pi OS full (Debian).
- On the bottom of the screen select keyboard layout and language,
Configure
Raspberry
use raspi-config, start a terminal:
sudo raspi-config
Using raspi-config
Expand Filesystem (if not OK already) Set keyboard layout Enable Camera Set hostname Enable SSH Enable i2c - load module as default Disable Serial login boot as a console with login Update firmware Set locale to "en_DK.UTF-8 UTF-8" (danish keyboard, but English language)
Update operating system
Ensure you have internet access, then
sudo apt-get update sudo apt-get dist-upgrade sudo reboot
Login
login as pi, password raspberry - password may have changed
Add a user called local, this leaves the pi user as is. This can save reformatting and reinstall when the Pi is to be reused.
add a user called local
sudo adduser local sudo usermod -a --groups adm,cdrom,sudo,audio,video,plugdev,games,users,netdev,input,spi,gpio,i2c,dialout local
switch user to local, and ensure groups are OK, and network is running
su - local groups ifconfig
Note the inet address.
Now it is possible to login (as local) from network.
Get access using hostname
You may change the hostname by changing the name in /etc/hostname. If you do so, then you should probably restart before the new hostname works.
Now from another PC on the local network
ping hostname.local
where "hostname" is replaced with the hostname in /etc/hostname.
Get filesystem on normal Linux PC
From another (Linux) PC, mount the raspberry filesystem
mkdir rpi (where the filesystem will be mounted) sshfs local@10.59.8.141: rpi (replace IP number with inet address from above, or use sshfs local@hostnale.local: rpi)
Then in directory rpi the user files on the raspberry can be manipulated.
for other access, use (with IP address as found above, or IP replaced with hostname.local)
ssh -X local@10.59.8.141
Packages needed
sudo apt install cmake sudo apt install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev libxvidcore-dev libx264-dev libgtk2.0-dev sudo apt install libatlas-base-dev gfortran alsa-tools jackd1 sudo apt install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev subversion libreadline-dev htpdate aptitude # video for linux had some error, maybe this will help cd /usr/include/linux sudo ln -s -f ../libv4l1-videodev.h videodev.h # opencv # sudo apt install libopencv-dev (sorry, installs opencv 2.4 (jan 2020), with no ArUco code support)
NB! Stop here if you install ROBOBOT
Opencv
As of June 2019 opencv 3.2 is installed using line above - NO, it is back to 2.4 on noops 3.2.1 (jan 2020/jca)
Newer version of Opencv could be installed manually if you really need functions not available in 3.2. For newer installation use
# make a directory for the opencv source cd mkdir -p git cd git # get source wget -O opencv-3.4.zip https://github.com/Itseez/opencv/archive/3.4.zip unzip opencv-3.4.zip wget -O opencv_contrib-3.4.zip https://github.com/Itseez/opencv_contrib/archive/3.4.zip unzip opencv_contrib-3.4.zip # you will need this - if you use python - takes some minutes pip install numpy # prepare compilation cd ~/git/opencv-3.4/ mkdir build cd build cmake -D CMAKE_BUILD_TYPE=RELEASE \ -D CMAKE_INSTALL_PREFIX=/usr/local \ -D INSTALL_PYTHON_EXAMPLES=ON \ -D OPENCV_EXTRA_MODULES_PATH=~/git/opencv_contrib-3.4/modules \ -D BUILD_EXAMPLES=ON .. # inspect printout to see if needed features are enabled # use -j2 option not to overload or overheat the processor (j2 means use 2 cores only) # this probably takes an hour or so make -j2 # install into /usr/local sudo make install # load environment settings sudo ldconfig
