Technical specifications:
- 20 digital input/output port RX and TX, D2 ~ D13, A0 ~ A5
- 8 analog input port A0 ~ A7
- 1 to the TTL level a serial port to send and receive port RX/TX
- 4.6 a PWM port, D3, D5, D6, D9, D10, D11
- Using Atmel Atmega328P - AU microcontroller
- Support serial download
- Supports external 3.8 V ~ 12 V dc power supply
- Supports 12 v
- 16 MHZ clock frequency
- Size: 33.3 / 18 (mm)