View Arduino Mega 2560 Pro Pinout Pictures. First feature is the large i/o system design with inbuilt 16. Each of the 54 digital pins on the arduino 2560 mega can be used as an input or output, using pinmode(), digitalwrite(), and digitalread() functions.

Arduino Mega 2560 Pro Pinout Circuit Boards
Arduino Mega 2560 Pro Pinout Circuit Boards from robotdyn.com
It has 54 digital input/output pins (of which 14 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. Each pin comes with a specific function. First feature is the large i/o system design with inbuilt 16.

First of all, why arduino mega 2560?

( ) physical pin ( ) port pin serial pin interrupt pin ) pin function ( ) int arduino. When cheaper boards are available, why go with arduino mega? The arduino mega 2560 is a microcontroller board based on the atmega2560 (datasheet). First feature is the large i/o system design with inbuilt 16.