UD23A08 FAQ
Customer :
I bought a UD23A08 8 Channel USB COM Serial Port UART Relay Board on aliexpress (order Nr 3051804136187061) and I am trying to communicate with it.
Unfortunately, I am not able to find any protocol specification neither for AT commands or 8 bytes commands neither serial port configuration (I believe 115200 baud rate).
The https://485io.com/eletechsup/UD23A08-1.rar page contains only the windows drivers.
Do you have something like this that yould help me using your product?
Eletechsup :
Baud rate : 9600
Customer :
Hello
I am still facing issues to communicate with the UD23A08 device.
I tried the following commands, without any effect:
All Relays Open
All Relays Closed
Serial port set to 9600 baud
Should I add a prefix before the AT commands?
The description
5: ''Open'' ''Close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay'' ''All Relays Open'' ''All Relays Close'' 8 Commands
on your website is a little bit low to explain how to communicate with the board.
Eletechsup :
UD23A08 manual : https://1drv.ms/u/c/f5c7cfff112f0ffe/Ef4PLxH_z8cggPXCGwAAAAABFET756erH5V5DWbuS2mHLQ?e=qf1PlF