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Re: Trouble with ESP-01 + 1Ch 5V relay from LC Technology

PostPosted: Fri Jan 13, 2017 10:17 am
by mikukosar
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.

Re: Trouble with ESP-01 + 1Ch 5V relay from LC Technology

PostPosted: Wed Jan 18, 2017 5:06 pm
by Mgazza
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

Re: Trouble with ESP-01 + 1Ch 5V relay from LC Technology

PostPosted: Thu Jan 19, 2017 6:47 am
by Mgazza
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...

Re: Trouble with ESP-01 + 1Ch 5V relay from LC Technology

PostPosted: Thu Jan 19, 2017 5:20 pm
by Mgazza
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