The Mega 2560 board has several amenities for communicating with a computer, A further board, or other microcontrollers. The ATmega2560 gives 4 components UARTs for TTL (5V) serial communication. An ATmega16U2 (ATmega 8U2 about the revision one and revision two boards) around the board channels just one of such more https://ligamega2557024.develop-blog.com/34006008/5-simple-techniques-for-mega25