[SOLVED] SetPoint MQTT Hometop

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1

Heya
I am using hometop to controll my heating unit. To set the desired temperature I’d like to switch to MQTT.

I managed to read the current state, yet I fail to set the desired temperature with a setpoint in my sitemap.

The item configuration looks like this:
Number Temperature_Setpoint "Zieltemperatur [%.1f °C]" <temperature> {mqtt="<[mosquitto:hometop/ht/hc1_Tdesired:state:default:.*],>mosquitto:set/hometop/ht/hc1_Tdesired:command:*:${command}]]"}

The problem is, that setpoint seem to publish only the number of the desired temperature. However the mqtt broker expects the temperature and a second parameter. e.g “heizen”

mosquitto_pub -d -t set/hometop/ht/hc1_Tdesired -m "29.5,heizen"

I dunno if one can tweak the SetPoint control to add the second parameter “heizen” or if I have to use a rule to do so.

2

The MQTT broker doesn’t expect anything it only forwards published messages to subscribers
What you mean is that your heating unit wants another parameter in the message payload.

Try that:

Number Temperature_Setpoint "Zieltemperatur [%.1f °C]" <temperature> {mqtt="<[mosquitto:hometop/ht/hc1_Tdesired:state:default],>[mosquitto:set/hometop/ht/hc1_Tdesired:command:*:${command},heizen]"}

If that doesn’t work try "escaping2 the coma:

>[mosquitto:set/hometop/ht/hc1_Tdesired:command:*:${command}\,heizen]"}
3

Cheers, that did the trick. No need for escaping the payload though.

4

Pl;ease tick the solution, thanks