The main Arduino sketch for the FT-817 Buddy project.
This sketch has been built using Visual Studio Code / PlatformIO IDE (instead of Arduino IDE). If you want to load this code into Arduino IDE you probably just need to remove the #include<Arduino.h> line at the top of the sketch, Google is your friend. But it's much nicer to work in VSC/PlatformIO, it's a nice step forward from the Arduino IDE.