♥Product introduction:

The LCUS-2 USB relay module is equipped with a USB-to-serial chip and microcontroller with stable performance. It can use serial debugging software on the computer to send serial commands to control the opening and closing of the 2-way relays.

♥Features:

1. Onboard 8-bit high-performance microcontroller chip

2. Onboard CH340 USB control chip

3. Onboard power LED indicator and relay status LED indicator.

4. Support relay switch status query

5. On-board 2-way 5V, 10A/250VAC, 10A/30VDC relay, the relay has a long life and can be continuously pulled in 100,000 times

6. The module has overcurrent protection and relay diode freewheeling protection functions

7. Board size: 50*40mm

♥Instructions for use:

1. Connect the USB relay module to the computer, and install the driver for the CH340 USB to the serial port chip.

2. Open the serial port debugging software such as STC-ISP and SSCOM32, select the baud rate of 9600, and send A0 01 01 A2 and AO 02 01 A3 in hexadecimal (hex) format to open the first and second channels respectively. relay; send AO 01 00 A1 and AO 02 00 A2 in hexadecimal (hex) form to close the first and second relays respectively. You can choose to send manually or automatically.

3. Relay status query: send FF in hexadecimal (hex) format to query, the data width returned by the serial port is 20 bytes (10 bytes for each channel), if the first channel is open, the second channel When it is off, querying the relay status will return: "CH1: ON IrInCH2: OFF\rIn"