•Using Atmel Atmega328P-AU MCU, Support ISP download,using the same chips ATmega328P and CH340 with the official version.
•Support USB download and Power.
•Support for external 5V~12V DC power supply, Support power supply by 9V battery.
•Nano V3.0 ATMEGA328P improved version with 3pcs pin headers. No welding needed.