Nano V3.0 CH340G，For BLHeli ESC tuning parameters

1、14 digital input/output ports TX, RX, D2~D13,
2、8 analog input ports AO~A7
3、1 pair of TTL level serial transceiver ports RX/TX
4、6 PWM ports, D3, D5, D6, D9, D1, 0D, 11
5、Using ATMEL ATMEGA328P-AU microcontroller
6、Support USB download and power supply
7、Support external 5V ~ 12V DC power supply
8、Support 9V battery power supply
9、Support ISP download
10、Three types of power supply: USB, VIN, external 5V input
11、Board Size:18*43MM