Source Code for MCU on PCB Board
Below is the file used to program the Microcontroller (MCU) on the Printed Circuit Board.
When opened in Notepad or any similar program, comments within the file can be read to understand what its functions are.
Main Source Code for MCU is the code that runs on the MCU to regulate charging and indicate how much the battery is charged (turn on appropriate LEDs).
Test Source Code for MCU is the code that toggles the IO pins on the MCU to check if they function.