Serial port control relay module is equipped with a stable performance of USB to serial port chip and microcontroller. Serial port debugging software can be used in the computer to send serial port instructions to control the opening and closing of 1 relay.

Main parameters:

1. On-board high-performance microcontroller chip;

2, onboard CH340 USB control chip,

2 on-board 5V, 10A/250VAC, 10A/30V DC relays, relay life 3, long can continuously suck the contract 100,000 times;

4, onboard power LED indicator and relay status LED indicator;

5, the module has overcurrent protection and relay diode continuous current protection function;

6. The default baud rate of the LCUSB switch is 9600bps

Instructions for use:

Step 1: Connect the USB relay module to the computer and install the driver of the CH340USB-to-serial chip.

Step 2: Open the STC-ISP, SSCOM32 class serial debugging software, select the baud rate of 9600, in HEX form to send A0 01 01 A2 open relay: in HEX form to send A0 01 00 A1 close relay, you can choose to send manually or automatically.