Atmega series is the one of the easiest microprocessor to use the platform to the embedded software. This repository would be filled up with the communication algorithm of the given communication interface environment, which contains
TWI
I2C SPI
USB
USART
UART
Analog Comm
Compiled.asm file is the compiled assembly file. Do not put that on your board though. Dunno what happens next. Atmega Communication source code in here, but I won't explain how it works. just aware that it is used for drone flight. Then figure out