Help with MQTT

Hi all,

I have bought a couple of ESP32 board to be used as presence monitor (using BLE).
This is basically thought to work with MQTT, but I am confused on how to do it.

What do I need on the Indigo side?
MQTT Shims to create a device? What kind of device?

Thanks
Marco

I am trying to playing a little bit, but without success, so far I have:

Code: Select all

14. Dec 2022 at 12:07:23
   MQTT Shims Debug                message_handler: MQTT message ##espresense## from Local MQTT
   MQTT Shims Debug                message_handler: MQTT message ##espresense## from Local MQTT
   MQTT Shims Debug                Bagno_OG: processMessages: '##espresense##' espresense/rooms/bagno_og/telemetry -> {"ip":"192.168.2.118","uptime":2971,"firm":"esp32","rssi":-79,"ver":"v3.1.1","adverts":30411,"seen":30154,"freeHeap":92584,"maxAllocHeap":77812,"memFrag":15.95524065,"scanHighWater":1036,"reportHighWater":808}
   MQTT Shims Error                Bagno_OG: error getting uid value from payload, aborting
   MQTT Shims Debug                Bagno_OG: processMessages: '##espresense##' espresense/rooms/bagno_og/telemetry -> {"ip":"192.168.2.118","uptime":2971,"firm":"esp32","rssi":-79,"ver":"v3.1.1","adverts":30411,"seen":30154,"freeHeap":92584,"maxAllocHeap":77812,"memFrag":15.95524065,"scanHighWater":1036,"reportHighWater":808}
   MQTT Shims Error                Bagno_OG: error getting uid value from payload, aborting



Why is trying to get "status" key from "telemetry"?

Thanks

Marco,

From the MQTT Explorer information you provided, status is not JSON. Payload Type: Raw from what I see.

Jody

Also the UID ('bagno_og ') is not in the payload, it's part of the topic. Third part, which makes it field 2 (zero based).

Thanks a lot for the inputs, but I think I am still missing something

Code: Select all

MQTT Shims Debug                message_handler: MQTT message ##espresense## from Local MQTT
   MQTT Shims Debug                message_handler: MQTT message ##espresense## from Local MQTT
   MQTT Shims Debug                Bagno_OG: processMessages: '##espresense##' espresense/rooms/bagno_og/telemetry -> {"ip":"192.168.2.118","uptime":2175,"firm":"esp32","rssi":-84,"ver":"v3.1.1","adverts":4484,"seen":4437,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: Raw payload = {"ip":"192.168.2.118","uptime":2175,"firm":"esp32","rssi":-84,"ver":"v3.1.1","adverts":4484,"seen":4437,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: states_key=
   MQTT Shims Debug                Bagno_OG: Updating state to False
   MQTT Shims Debug                Bagno_OG: processMessages: '##espresense##' espresense/rooms/bagno_og/telemetry -> {"ip":"192.168.2.118","uptime":2175,"firm":"esp32","rssi":-84,"ver":"v3.1.1","adverts":4484,"seen":4437,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: Raw payload = {"ip":"192.168.2.118","uptime":2175,"firm":"esp32","rssi":-84,"ver":"v3.1.1","adverts":4484,"seen":4437,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: states_key=
   MQTT Shims Debug                Bagno_OG: Updating state to False
   Hubitat Bridge                  received "Movimento Cucina" motion sensor "active" event
   MQTT Shims Debug                message_handler: MQTT message ##espresense## from Local MQTT
   MQTT Shims Debug                message_handler: MQTT message ##espresense## from Local MQTT
   MQTT Shims Debug                Bagno_OG: processMessages: '##espresense##' espresense/rooms/bagno_og/telemetry -> {"ip":"192.168.2.118","uptime":2190,"firm":"esp32","rssi":-81,"ver":"v3.1.1","adverts":4637,"seen":4590,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: Raw payload = {"ip":"192.168.2.118","uptime":2190,"firm":"esp32","rssi":-81,"ver":"v3.1.1","adverts":4637,"seen":4590,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: states_key=
   MQTT Shims Debug                Bagno_OG: Updating state to False
   MQTT Shims Debug                Bagno_OG: processMessages: '##espresense##' espresense/rooms/bagno_og/telemetry -> {"ip":"192.168.2.118","uptime":2190,"firm":"esp32","rssi":-81,"ver":"v3.1.1","adverts":4637,"seen":4590,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: Raw payload = {"ip":"192.168.2.118","uptime":2190,"firm":"esp32","rssi":-81,"ver":"v3.1.1","adverts":4637,"seen":4590,"freeHeap":93292,"maxAllocHeap":79860,"memFrag":14.39780474,"scanHighWater":1044,"reportHighWater":808}
   MQTT Shims Debug                Bagno_OG: states_key=
   MQTT Shims Debug                Bagno_OG: Updating state to False
   Hubitat Bridge                  received "Movimento Bagno-EG" motion sensor "active" event
   MQTT Shims Debug                validateDeviceConfigUi, devId=178623972, typeId=shimOnOffSensor, valuesDict = UiValuesDict : (dict)


You didn't fix either of the issues pointed out to you already.

Sorry, you are right, uploaded wrong screenshot

Looks to me like your trigger is matching on any of the messages from the device, not just the status topic. I don't see any status topic messages in the log excerpt you posted.

This is my trigger

Yeah, that's not going to work. You need to trigger on the specific message topic for the value you're looking for, which is "espresense/rooms/bagno_og/status". So you need:

Code: Select all

Match: espresense
Match: rooms
Any:
Match: status
End:

The any is there because if you if have multiple devices, you want the trigger to work for all of them, identified by the uniqueID (bagno_og)

It worked!
Thanks a lot!

Now I am doing something different, because I would like not only to get the status value, but also other data in it.
My idea was to create a trigger for every /rooms/<device>, is this approach correct?

Therefore I would have as follows, but something seems wrong as it does not work

Now I am doing something different, because I would like not only to get the status value, but also other data in it.
My idea was to create a trigger for every /rooms/<device>, is this approach correct?

No. You can create a trigger for each message type you want to use, but they're re-used for multiple devices.

The Shim device represents a specific value (or possibly set of values) for a specific MQTT topic message. So you can use a trigger for all devices for THAT message type. Each message type represents a different topic. Each topic/uniqueID combo maps to a different Shim device.

Yes, in the meantime I modified and used that approach; now I am trying to create a device representing the IP, but what type of sensor shall I use? If I use generic, I get error "unable to convert to float".

Thanks

You need to use "Generic JSON Device".