Page 1 of 1

MIH0028 (Energenie MiHome Light Switch)

Posted: 25 Jan 2018, 09:04
by domstanford1
I've recently purchased some MiHome plug adapters (http://amzn.to/2DBsNrw), light switch (http://amzn.to/2rHfnVo) and remote (http://amzn.to/2FcHVrH). As mentioned in other places they appear to use the Eurodomest protocol.

The plug socket adapters (MIH0002) work fine with the RFLINK. To turn on / off RFLink can send packets such as this:

10;Eurodomest;ID=123456;SWITCH=02;ON;

However the light switches (MIH0028) seem to use a slightly modified protocol. When using the official remote you have to hold the ON button for a second (rather than just press). The RFLink will manage to turn the light switches on/off sometimes when the command is sent around 4x and the OFF command often isn't picked up at all.

Any ideas? Has anyone got these working?

Re: MIH0028 (Energenie MiHome Light Switch)

Posted: 26 Jan 2018, 20:14
by domstanford1
My current theory is that the Energenie Light Switches do use the same Eurodomest protocol however they only listen for data every so often to save power.

In the user manual it states the following when using the remote control:
"With the Energenie hand controller it can be controlled with the on/off buttons to which it is paired and the all on/off buttons by pressing and holding the chosen “On” or “Off” button on the remote handset for 1 second."

I've modified my scripts to repeat the ON TX signals ~10x and the light switch responds without fail. Normally the OFF signal only has to be sent once. My assumption is the light switch doesn't have enough power when off to listen permanently (like the plug sockets can). It looks like someone else has found this behaviour here as well: https://github.com/Genestealer/Home-Ass ... ights.yaml

I wonder if it's worth RFLink having a repeat signal option to reduce the overhead on the automation software?

Re: MIH0028 (Energenie MiHome Light Switch)

Posted: 27 Jan 2018, 00:07
by Stuntteam
Good question..
Note that it does jam the frequency band during that time for other signals.
I would not use too many of these devices and switch them frequently.. :)