Module USES method
1, install the driver,
2, restart the computer,
3, plug module to the USB interface of a computer, the system will automatically install the driver
4, connect the TXD and RXD (that is, to use the dupont thread one end plugged in at one end of the TXD RXD), make the module can spontaneously from closed,
5, open the serial port debugger
Line sequence defined red +5 V, black GND, green RXD, white TXD
7, Line length: 1M