MQTT stopped working

Installation Home Assistant OS
1

Hello everyone

I´m just surprised again by MQTT. I just upgraded the firmware on all my sonoff devices (using Theo Arendst´s Tasmota), and all of them stopped working with HA (Hass.io).

With ths configuration:

- platform: mqtt
  name: "Reflector Patio"
  command_topic: "patio/sonoff3/cmnd/power"
  state_topic: "patio/sonoff3/POWER"
  qos: 0
  optimistic: false
  payload_on: "ON"
  payload_off: "OFF"
  retain: true

I get, whenever I try the GUI slider:

17:35:46 MQT: patio/sonoff3/RESULT = {"POWER1":"ON"}
17:35:46 MQT: patio/sonoff3/POWER1 = ON

Config in Tasmota´s firmware is:

MQTT Host	192.168.1.10
MQTT Port	1883
MQTT Client &
Fallback Topic	DVES_07B2D5
MQTT User	tito1
MQTT Topic	sonoff3
MQTT Group Topic	sonoffs
MQTT Full Topic	patio/sonoff3/cmnd/

And everything was working great up until the upgrade. Now, the light lights up, but the state doesn´t change, and can´t be turned off.

Pretty please help.

2

Look different to the console message in tasmota
Power and power1

3

OK, just solved it (ish).

Tasmota´s latest firmware seems to break MQTT, giving a JSON parsing error in HA. Solution was pretty simple: donwngrade to a minimal image and then the complete one via web (to version 5.12, (that version worked for me).

Thanks all.

4

I’m running 5.13 all good

5

Update from 5.13.1 to 5.14.0 changed the stat and cmnd topic from POWER to POWER1.

That’s a Breaking change in Tasmota :slightly_smiling_face:

https://github.com/arendst/Sonoff-Tasmota/issues/2760

1 Like
6

I didn´t notice that. So just adding a “1” to all the configs should solve the issue, right?

7

Ok, just got answered in Theo´s forum.

There´s a new feature that needs to be adressed, for someone a breaking change.

Just type:

Setoption26 0

in console to get the POWER statement back (as opossed to POWER1)

1 Like
8

OK this is so weird!!!

I saw this before I updated my Tasmota to 5.14.0 (I was on 5.12) and edited my configuration.yaml in anticipation and changed power to power1 and then it didn’t work when I restarted Home Assistant!! I didn’t screw with Setoption26 or anything like that. Restarted Home Assistant again with it set back to power and it is all working again.

switch:
  - platform: mqtt
    name: "Toothbrush1"
    command_topic: "cmnd/sonoff1/power"
    state_topic: "stat/sonoff1/POWER"
    qos: 1
    payload_on: "ON"
    payload_off: "OFF"
    retain: true
  - platform: mqtt
    name: "Coffee Maker"
    command_topic: "cmnd/sonoff2/power"
    state_topic: "stat/sonoff2/POWER"
    qos: 1
    payload_on: "ON"
    payload_off: "OFF"
    retain: true

I did also update to 0.70.0b0 as well but I don’t understand why this is still working? I had previously used the PowerRetain 1 command but I’m just confused at this point. Anyway it’s working.