Product Summary
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
5. Using Atmel Atmega328P-AU microcontroller
6.supports serial download
7. Support for external 5V ~ 12V DC power supply
8. Support 9V battery-powered
9 clock frequency 16MHz
10. Dimensions: 33.3 * 18.0 (mm)