Arduino Compatible 5V 16M Pro Mini Microcontroller Board Improved AtMega328P 328

Specification:

• 14 Digital input / output port: RX, TX, D2 - D13
• 8 analog inputs: A0 - A7
• 1 pairs of ports TTL level serial transceiver: RX / TX
• 6 PWM ports: D3, D5, D6, D9, D10, D11
• Using Atmel AtMega328P-AU MCU
• Support serial download
• Support for external 3.3V - 12V DC power supply
• Support 9V battery supply
• Clock frequency: 16MHz
• Size: 33.3 x 18.0mm