Reacting on MQTT message from Domoticz

[nafremony]

Hello, I have Domoticz set up with MQTT (Mosquitto) and I added simple switch. When I turn it on using /control?cmd=GPIO,5,1, I see it goes on in Domoticz. However when I turn it then off in Domoticz, I see the message in domoticz/out with correct idx and nvalue, but ESP seems to be ignoring that message doing nothing to the GPIO.

The switch is set as:


I tried setting up the Output - (Domoticz MQTT helper), just trying blind luck:

But that didn't help.

Is there a way to react on messages from Domoticz? Or do I have to use the HTTP action on ON/Off?

[NietGiftig]

Is there a way to react on messages from Domoticz? Or do I have to use the HTTP action on ON/Off?

For simple on/off that's the most easy thing to do.

[nafremony]

For simple on/off that's the most easy thing to do.

But do I have to? Or is there an other way?

[ToniA]

It's the length of the Domoticz MQTT message. In my own branch I'm using PlatformIO to build ESPEasy, so that I can have global #define's in the ini file.

With Arduino IDE, you need to hardcode longer MQTT buffer support into pubsubclient and Controller.ino.

[nafremony]

It's the length of the Domoticz MQTT message.

Ahh, thanks. Good to know.

I also found there's a chance of infinite loop, if two messages are published quickly after each other before Domoticz processes these:

1. ESP: GPIO,5,1 (sends MQTT payload to Domoticz)
2. ESP: GPIO,5,0 (sends MQTT payload to Domoticz)
3. Domoticz responds in domoticz/out setting to ON, where ESP picks it up and turns it ON (step 2 turned it off) - so back to step 1.
4. Domoticz responds in domoticz/out setting to OFF, where ESP picks it up and turns it OFF (previous step turned it on)
5. ...

So I think I rather stick with Domoticz+HTTP.