Mini Microcontroller Circuit Board for Arduino

- Color: Blue
- 14 Digital input / output RX, TX, ~D13
- 8 analog inputs AO~A7, 2 x TTL level serial port RX/TX
- 6 PWM ports: D3, D5, D6, D9, D10, D11; Adopt Atmel Atmega328P-AU singlechip
- Supports serial download
- Supports external 3.3V~12V DC power supply
- Supports 9V battery supply
- Clock frequency: 16MHz
- Comes with 2 x Pins