Usage of Arduino Nano 3.0 controller:
1 download for Arduino IDE
2 USB chip driver download;
3 Plug NANO development board, the driver will automatically install
4 Select the card inside the die NANO
5 Select the COM port that my computer can query your NANO board just inside the port
6 best first choice, for Arduino own routine procedures, burn inside.
1A Micro USB 18650 Lithium Battery Charging Board with protection