Mini Pro is a microcontroller board.It has 14 digital input / output pins (of which 6 can be used as PWM outputs),

Eight analog inputs, a 16MHz resonator, a reset button, mounting hole pin head.

Technical parameters:

1.14 Digital input / output ports RX, TX D13, D2 ~~ of,
2 or 8 analog input port A0 to A7
3. The TTL level serial transceiver port RX / TX
4.6 PWM ports, D3,, D5 , D6, D9, D10, D11
.Using Atmel Atmega328P-AU microcontroller
supports serial download
7.Support for external 3.3V ~ 12V DC power supply
8.Support 9V battery-powered the
9 clock frequency 16MHz
10. Dimensions: 33.3 * 18.0 (mm)