NanoAT Arduino Nano Compatible ATMega128P Version 3.0
Atmel Atmega328P-AU MCU with CH340G RS232 Interface chip
8 analog inputs: A0 ~ A7
14 Digital input / output ports: TX, RX, D2 ~ D13
6 PWM ports: D3, D5, D6, D9, D10, D11
TTL level serial transceiver ports RX / TX
USB download and Power
Support for external 5V ~ 12V DC power supply
Official Arduino Website