Specifications:

14 digital input/output port RX and TX, D2 ~ D13,
8 analog input port A0 ~ A7
1 to the TTL level a serial port to send and receive port RX/TX
6 a PWM port, D3, D5, D6, D9, D10, D11
Using Atmel Atmega328P - AU microcontroller
Support serial download
Support external 3.3 V ~ 12 V dc power supply
Support 9 v batteries
16MHz/8MHz clock frequency
Size: 33.3 *18 (mm)

Package contains:
1Nos Pro Mini