Arduino Uno R3 Board

The Arduino Uno R3 is a microcontroller board based on the ATmega328 . It has 14 digital input/output pins, 6 analog inputs, A 16 MHz ceramic resonator, A USB connection, A power jack, An ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

Images/Pinout of Arduino Uno