Microcontroller: ATmega328P
Circuit Operating Voltage: 5V
Clock frequency: 16MHz.
6 PWM port: D3, D5, D6, D9, D10, D11.
Use For Atmel Atmega328P-AU microcontroller.
Support serial download.
Support 9V battery.
A pair of TTL level serial port transceiver : RX / TX.
