The Arduino Uno is a microcontroller board based on the ATmega328P chip. It has 32KB of flash memory, 2KB of SRAM, and 1KB of EEPROM. The board 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 to get started.