The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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. The small chip is ATmega16U2, the 28 pin DIP socket chip is ATmega328-pu.

Package includes:

1 x Arduino UNO R3 compatible board with DIP ATmega328P with cable.