The Arduino (Compatible) Mega 2560 is a microcontroller board based on the ATmega2560. Arduino is a popular open-source physical computing platform that is simple to use and easy to learn. You can use Arduino to develop stand-alone interactive objects or to connect to software on your computer. The Arduino IDE is free to download for Mac OS X, Windows, and Linux.

The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328. It works with a Mini-B USB cable.

The DCcduino Uno is a micro-controller board compatible with the Arduino Uno R3. It has 14 digital I/O pins, 6 analog inputs, a 16MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. Simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.