Key Features of UNO R3:
- ATmega328 processor running at 16MHz
- CH340 Serial to USB converter
- 32KB Flash memory
- 14 Digital I/O
- 6 PWM shared with the digital I/O
- 6 Analog inputs that can also be used as digital I/O for a total of up to 20 digital I/O
- 1 Hardware serial port
- 5V Operation
