retroflag-gpi-case

System files for Raspberry Pi OS to relay the GPIO connections.

• Before editing the remote boot loader, create on the remote side a backup of /boot/config.txt and /boot/overlays/dpi24.dtbo:

  sudo cp /boot/config.txt /boot/config.original
  sudo cp /boot/overlays/dpi24.dtbo /boot/overlays/dpi24.original

• Upload system files in your terminal app with the scp command to the remote home folder.

  scp boot/config.txt pi@raspberrypi.local:/home/pi/config.txt
  scp boot/overlays/dpi24.dtbo pi@raspberrypi.local:/home/pi/dpi24.dtbo
  scp boot/overlays/pwm-audio-pi-zero.dtbo pi@raspberrypi.local:/home/pi/pwm-audio-pi-zero.dtbo

• While removing unecessary packages from the default installation, be aware that the avahi-daemon package is responsible for network access to the Raspberry PI via the hostname raspberrypi.local. If removed you have to use an IP address for SCP and SSH, f.eks. pi@192.168.0.3 instead of pi@raspberrypi.local.

• The keys of the case are available as a joystick device. If you need them as keystrokes from a keyboard, you can map the keys with the help of the joy2key package. Configuration details can be found in the joy2key sources, joy2key manpage or in the joy2key webpage.