MQTT device doesn't show up in HA

Configuration
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1

Hi,

I added this watermeter to my setup and configured it to use MQTT.

With MQTT explorer I see that the topic and values are received by MQTT, but HA doesn’t create a new device for this.

Already tried different prefixes (empty (recommendation from Smart Gateways) and homeassistant), but this makes no difference.

I have added other MQTT devices before and that worked flawlessly and they are still working.

Checked that MQTT autodiscovery is enabled in HA and it is.

I am sure I am overlooking something, but can’t figure out what :frowning:

Any tips?

Regards,

Martijn

2

What happens if you manually create the object via yaml?

3

Not much to go on

What do you get in MQTT explorer ?

4

Not sure how to do that yet, but will look in to it.

6

No, very little unfortunately.

A new topic “watermeter” is visible, with a couple of sub-topics. Values are updated every minute.

Not near my PC. Will post a screenshot later tonight.

1 Like
7

This shows MQTT Explorer.

image

8

When checking the Mosquitto broker log in HA, there is a connection from the IP address of the watermeter.

2024-08-11 02:43:37: New connection from 192.168.x.x:56394 on port 1883.
2024-08-11 02:43:37: New client connected from 192.168.x.x:56394 as D0_EF_76_5C_BF_A8 (p2, c1, k15, u'mqtt').

But nothing after this.

9

MQTT devices do not automatically get added into HA when information is published to any random topic on your broker. MQTT discovery is a process where the device must publish specific configuration information to a special discovery topic which describes how HA should add the device. If the device itself doesn’t publish this HA-specific information, nothing will happen.

It looks like your device probably doesn’t know anything about HA’s MQTT discovery, and therefore you will have to manually add the MQTT device

10

I was figuring it would be something like this.

Weird the manual or FAQ of the device doesn’t mention anything about this, even though they mention support for HA.

I will contact them about this.

11

Correction.

They do mention something about this.

With a package file. Will look at that tomorrow.

12

Erhm. The file I need to download is beyond a password-wall :frowning:

I will wait for their answer.

13

Got it!

Used this guide and yaml to add it to HA.