Professional version for Arduino Mini Pro is a microcontroller board. It has 20 digital input / output pins (of which 6 can be used as PWM outputs), 8 analog inputs, a 16MHz resonator, a reset button, pin head mounting holes.
1.20 digital input / output port RX, TX, D2 ~ D13, A0 ~ A5
2. 8 analog input ports A0 ~ A7
3. 1 checks the TTL level serial port transceiver RX / TX
4.6 two PWM ports, D3, D5, D6, D9, D10, D11
5. Using Atmel Atmega328P-AU MCU
6. supports serial download
7. Support for external 3.8V ~ 12V DC power supply
8. Support 12V and below battery-powered
clock frequency of 16MHz 9.
10 Size:. 33.3 * 18.0 (mm)