Points of interest in the code: IRQ.c : All of the interrupt code. Temporarily handles ADC and DAC (will be deprecated by I2S). Also handles timer interrupts for interfacing with the display. Serial.c : Handles all serial communications. This includes XBee modules over UART0 and the display over UART3. WaWA.c : Main code block. Initializes timers, displays, etc, and does most of the higher level processing.