Promotion For arduino Nano 3.0 Atmega328P Controller Compatible Board Module PCB Development Board with USB V3.0 CH340 USB Driver, atmega328P main IC, bootload has been written to the board. CH340G Replace FT232RL 8 analog inputs ports:A0 ~ A7 14 Digital input / output ports:TX,RX,D2 ~ D13 6 PWM ports:D3, D5, D6, D9, D10, D11 1 pairs of TTL level serial transceiver ports RX / TX Using Atmega328 MU/   Atmega328 AU There is bootloader installed in it Support USB download and Power Support for external 5V ~ 12V DC power supply Support power supply by 9V battery Support ISP download Atmega328P-AU and Atmega328P-MU Chip is same function