Hi All, I have a question on MQTT2 and how to control my Vallox 140SE unit using MQTT2 in FHEM.
I've integrated the Vallox unit with FHEM using the 'valloxesp' solution from github (kotope).
The MQTT2 reading all work perfect through autocreate as an MQTT2_DEVICE.
But I have not clue how to control the speed of the unit. Even after reading all MQTT2 topics I could find and MQTT2 examples pages, I cannot get this to work.
I tried things like this:
set MQTTBroker publish /set/vallox/speed 8
or
attr MQTT2_vallox setList on vallox/set/speed 8
But I struggle to understand how this works.
My device internals:
| CFGFN | |
| CID | vallox |
| DEF | vallox |
| FUUID | 65900de2-f33f-d8df-58e1-b49b7ed1d4d89010 |
| IODev | MQTTBroker |
| LASTInputDev | MQTTBroker |
| MQTTBroker_CONN | MQTTBroker_192.168.123.194_49153 |
| MQTTBroker_MSGCNT | 416 |
| MQTTBroker_TIME | 2023-12-31 12:58:43 |
| MSGCNT | 416 |
| NAME | MQTT2_vallox |
| NR | 312843 |
| STATE | speed |
| TYPE | MQTT2_DEVICE |
| eventCount | 443 |
I dont seem to find a proper documentation on the valloxesp site, it seems to me that the (only) goal was a HomeAssistant integration.
From the source code it seems to subscribe to vallox/state and if debugging is enabled to vallox/debug.
You can verify this by looking at the subscription in "list MQTTBroker_192.168.123.194_49153"
The payload is JSON, and a setList may(!) look like the following:
attr vallox setList\
mode:FAN,HEAT vallox/set {"mode":"$EVTPART1"}\
speed vallox/set {"speed":"$EVTPART1"}\
heat_target vallox/set {"heat_target":"$EVTPART1"}\
activate_switch:noArg vallox/set {"activate_switch":1}
UNTESTED! as I have no such device.
If you set debuggig in valloxesp, it will tell you (in some cases) what went wrong in sending the MQTT command.
See also
https://github.com/kotope/valloxesp/blob/master/valloxesp/valloxesp.ino#L121
Thank you very much for the hints... this was exactly what I needed and even if untested, it is working perfectly! :)
I'm controlling the fan speed like this:
attr MQTT2_vallox setList speed vallox/set {"speed":$EVTPART1}
attr MQTT2_vallox webCmd speed
attr MQTT2_vallox widgetOverride speed:slider,1,1,8
Happy newyear!