• Main chip: Atmel Atmega328P-AU
• Fully compatible to Arduino Boards
• Support Serial Download, 5V/16M
• Support external power supply 3.8-12V DC
• 3 Pin headers included

Description:
20 Digital input / output ports:TX, RX, D2 ~ D13, A0~A5
8 analog inputs ports: A0 ~ A7
1 pairs of TTL level serial transceiver ports RX / TX
6 PWM ports: D3, D5, D6, D9, D10, D11
Main Chip: Atmel Atmega328P-AU
Support Serial Download
Support external power supply 3.8-12V DC
Support 12V or less than 12V battery power supply
16MHz clock Frequency
Size: 33.8mm x 18mm