This Arduino Mega 2560 is a microcontroller board based on a ATmega2560 AVR microcontroller. The Mega 2560 differs from the preceding Mega in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega8U2 programmed as a USB-to-serial converter. This auxiliary microcontroller has its own USB bootloader, which allows advanced users to reprogram it. The successor to the Arduino Mega, has 70 digital input/output pins This auxiliary microcontroller has its own USB bootloader, which allows advanced users to reprogram it.
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