It's a good idea to set the file system on the SD card to readonly to protect it from becoming corrupted if the Raspberry Pi loses power. This is a good guide: https://hallard.me/raspberry-pi-read-only/
sudo apt-get remove --purge libreoffice* chromium-browser rpi-chromium-mods
sudo apt-get clean
sudo apt-get autoremoveInstall some software that will be needed:
sudo pip install adafruit-mcp3008 adafruit-pca9685 pysub
sudo apt-get install screen i2c-tools joystick python-pygame python-serial python-bluetooth pi-bluetooth omxplayer sysstat nmap arp-scan libusb-devAdd the following lines to /etc/rc.local:
# Set the voltage on pin 13 HIGH so the LED can indicate the pi has booted up.
echo 13 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio13/direction
echo 1 > /sys/class/gpio/gpio13/value
# Run the startup script.
sudo -u pi bash -c "python /home/pi/R2D2/run.py /home/pi/R2D2/basic.py &"