ESP8266 Community Forum

- Fri Jan 13, 2017 10:17 am #60954 Hello,

I have the same problem with this relay. Anyone know which serial command can activate the relay?
I have not got any answer from the manufacturer..

Thank you.

- Wed Jan 18, 2017 5:06 pm #61210 I have the same issue.

After some googling I have found the following.
http://www.ebay.co.uk/itm/220V-Bluetoot ... 1389692691

http://www.ebay.com/itm/DC-5V-12V-2-Cha ... 1938681040

I have tried writing these to the serial port and still haven't had any luck

- Thu Jan 19, 2017 6:47 am #61227 No idea where my last post went but here we are again,...
I found similar boards on ebay using the same STC15F104w chip. They all had modbus so maybe that's what they're using to turn it off and on. good news is that modbus can be replayed so we just need that replay. I've emailed the manufacturer so maybe they will be helpful and supply us with this or i'll just buy another and sniff the bus...

- Thu Jan 19, 2017 5:20 pm #61245 Boom!!! I'm a genius. I'm not but my google chi is strong
To turn on write 0xA0, 0x01, 0x01, 0xA2
To turn off write 0xA0, 0x01, 0x00, 0xA1