Control mode with a USB interface relay

Description:
1. on-board high-performance microcontroller chip
2. onboard CH340 USB controller chip
3. onboard power LED and relay status LED
4. on-board 5V 10A/250VAC 10A/30VDC relay, relay life long continuous pull 100,000 times
5. the module has a freewheeling diode overcurrent protection and relay protection
6. PCB size: 43.6(mm)x16.4(mm)

LC USB switch default communication baud rate: 9600bps
LC USB switch protocol:
Data (1) --- starting identity (the default is 0xA0)
Data (2) --- switch address code (the default is 0x01, identification of the first channel switch)
Data (3) --- Operating data (0x00 to "Off", 0x01 "On")
Data (4) --- checksum
Example:
Open USB switch: A0 01 01 A2< br />Close USB switch: A0 01 00 A1