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♥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"
stvrdl
Reviewed in the United States on March 10, 2024
Both devices work.Switching the devices on and off works.To me the ability to query the device for its current state is important.Sadly the FF command produces nothing.
Jtech
Reviewed in the United States on March 10, 2024
The media could not be loaded.
Internet Systems Group, Inc
Reviewed in the United States on January 17, 2024
When they work, they're perfect. That being said, I am currently running about a 50% failure rate on these modules. I have had 2 arrive DOA, and at least 6 others fail in the field after 2-3 months. The units power up and show as online but do not answer commands to operate Relay 1. My clients are all over the US, so these failures are costing me a fortune in replacement and goodwill.
Ed Kalarchian
Reviewed in the United States on June 5, 2023
No instructions available, but it works. Many Google searches agree with the other two reviews in their hex code to operate, however Google results also show a hex FF to query the current status. This has no effect, no bytes returned. I cannot confirm if this unit is supposed to or not. I cannot find any official documentation on this feature, for my project this was necessary
龙猫
Reviewed in the United States on December 29, 2023
Edit: After I posted this review, the company contacted me and let me get a refund. I would still be careful about testing it before the return window closes, but at least they are quick to fix it.One of the relays only has one functioning relay. The other relay does not work even though I use the same code to operate both relays. I did not test these until after the return window closed. Also, these have a green pcb instead of the pictured blue ones, so these might be a copy of the LCUS-2 relays.
Customer
Reviewed in the United States on January 1, 2023
After researching, found a way to send hex to Node-red. Also, thanks to Ramon wenn for the proper HEX strings.Switch Node #1On Payload - Buffer - ["0xA0","0x01","0x01","0xA2"]Off Payload - Buffer - ["0xA0","0x01","0x00","0xA1"]Switch Node #2On Payload - Buffer - ["0xA0","0x02","0x01","0xA3"]Off Payload - Buffer - ["0xA0","0x02","0x00","0xA2"]Serial Out NodeComX 9600-N81X = Com Port identified in Device Manager, USB-SERIAL CH340
Ramon wenn
Reviewed in the United States on September 13, 2022
The information in the description regarding the operation is incorrect. this is the correct information:Commands for relay operation (in HEX):Open 1st channel USB: A0 01 01 A2Close 1st channel USB: A0 01 00 A1Open 2nd channel USB: A0 02 01 A3Close 2nd channel USB: A0 02 00 A2
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