Pro Mini ATMEGA328P 3.3V 8M Interactive Media Upgrade Version For ArduinoDescription:Professional version Arduino Mini Pro is a micro-controller board. It has 14 digital input \/ output pins (of which 6 can be used as PWM outputs)、 8 analog inputs、 a 16MHz resonator、 a reset button、 mounting hole pin head.Parameter:- 14 digital input \/ output port: RX、 TX、 D2 ~ D13、- 8 analog input port: A0 ~ A7- A pair of TTL level serial port transceiver: RX \/ TX- 6 PWM port: D3、 D5、 D6、 D9、 D10、 D11- Use Atmel Atmega328P-AU microcontroller- Support serial download- Support external 3.3V ~ 12V DC power supply- Support 9V battery- Clock frequency:16MHz- Size: 33.3 * 18.0 (mm)Package included:1 x Module