This directory is an Arduino sketch, intending to give Sawppy rover a wired joystick controller alternative to default WiFi wireless control. Target platform is ATmega328-based Arduino Nano.
Target rover platform is Sawppy V1, based around the LewanSoul/HiWonder LX-16A serial bus servo. It has not (yet?) been adapted to rovers built on different hardware.
More details on Sawppy build blog, start here and look at adjacent blog entries. https://newscrewdriver.com/2019/05/20/sawppy-roving-with-wired-handheld-controller/