View Arduino Mega Dimensions Gallery. With 54 digital i/o pins, 16 analog inputs and a larger space for your sketch it is the recommended board for 3d printers and robotics projects. Recently i was busy building a nice case for an arduino and i needed the dimensions to make the correct mounting holes.
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.
Arduino uno and mega dimensions. Each of these arduinos have a different number of i/o pins. This gives your projects plenty of room and opportunities. Arduino boards come in a variety of shapes and sizes, but generally they can be organized into four groups:
