Part A: Add serial input to the AVR (328P): using interrupts, input characters from the PC using terminal emulator USB/serial interface that will echo characters typed by the user, that will change ONLY lower case alpha characters to upper case before transmitting them on the serial output port. Your program should perform: 1) serial receive, 2) processing of the characters based on the rule above, 3) serial transmit the processed character.

Part B: using the ARM chip