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產品介紹
The Mega 2560 is a microcontroller board based on the ATmega2560.
It has 54 digital input/output pins (of which 15 can be used as PWM outputs)
16 analog inputs
4 UARTs (hardware serial ports)
a 16 MHz crystal oscillator
a USB connection, a power jack
an ICSP header, and a reset button.