MQTT Sensor to return installed firmware version in Sonoff

Configuration
1

I am trying to make a sensor that returns the current installed firmware in my Sonoff that is flashed with Tasmota.

I am using this:

  - platform: mqtt
    name: "Coffee Maker Firmware"
    state_topic: "stat/sonoff2/STATUS2"
    value_template: "{{ value_json.StatusFWR.Version }}"

It creates the sensor but it comes up as unknown. What am I doing wrong?

2

The code is perfectly fine to read out the firmware version. But how do you plan to get your Sonoff to post information to that topic? As fas as I remember Sonoff does not publish that information without someone requesting it.

3

If I go to the console in the web interface it seems to be constantly going through the statuses… In any case, if I need to make a request then how do I do that?

4

You could publish a message to cmnd/sonoff2/status with the payload 2.

5

So would that be included in the sensor above or in the switch I have configured or it it seperate altogether?

6

It’s separate. It may be the best to include that in an automation to request that information on a regular base. Please try it manually first to make sure the topic I suggested is correct.

May I ask why it is important to know the firmware version?

7

Just so I know if I am running the latest version.

Are you able to give me an automation to do this? I really only need it to check once a day and display it in a sensor as per the above sensor.

I’m just a bit lost with MQTT - it’s a dark art to me. Lol. I got the switches working just by following guides. I also followed a guide for the sensor above but don’t really know how to make the sonoff publish to it.

OK! I went into the Developer Tools MQTT and executed your suggested topic above and the payload of 2 and the sensor is now showing the version!

8

You can use the below automation to get the currently installed version:

- alias: Query Tasmota version
  id: 'query_tasmota:version'
  trigger:
    platform: time
    at: '00:30:00'
  action:
    - service: mqtt.publish
       data:
         topic: 'cmnd/sonoff2/status'
         payload: '2'

If you have multiple sonoff devices just add multiple service blocks in that automation and just change the topic, e.g.:

- alias: Query Tasmota version
  id: 'query_tasmota:version'
  trigger:
    platform: time
    at: '00:30:00'
  action:
    - service: mqtt.publish
       data:
         topic: 'cmnd/sonoff1/status'
         payload: '2'
    - service: mqtt.publish
       data:
         topic: 'cmnd/sonoff2/status'
         payload: '2'
    - service: mqtt.publish
       data:
         topic: 'cmnd/sonoff3/status'
         payload: '2'

PS: You need multiple mqtt sensors to display the results if you query multiple device versions…

1 Like
9

Thanks for that!

Also chatted with Tinkerer on Discord. His suggestion was slightly different for the automation. Here’s what I am using:

- id: 'sonoff_firmware_installed'
  alias: Sonoff Firmware Installed
  trigger:
    - platform: time
      at: '00:00:00'
    - platform: homeassistant
      event: start
  action:
    - service: mqtt.publish
      data:
        topic: cmnd/sonoff1/status
        payload: "2"
    - service: mqtt.publish
      data:
        topic: cmnd/sonoff2/status
        payload: "2"

I already had the 2 sensors defined.

Thanks again.

10

Tinkerer is right, it should be data, not data_template. I copied the code from one of my automation and did not notice I hadn’t removed it. It’s fixed now. Glad you’ve found what you needed :slight_smile:

1 Like
11

Man this is annoying I spent a few hours getting this right myself a few weeks back. It your fault for posting how to get the current firmware release which gave me inspiration. I have now done for ha, podcast and my mikrotik routers about to do for my ubnt next.

1 Like