Hass.io: Mqtt x reboot

Installation Home Assistant OS
1

Hello,

I am using home assistant (HA) to monitor a water tank with 2 water level sensors (reed switch) hardware used:

  • d1 mini
  • reed switch - water level sensor
    I use the tasmota firmware on the d1 mini.

It works without problems, but if for some reason the home assistant restarts, I lose the status that was sent to mqtt to HA.

How do I get this status again from the level sensors?

2

You can enable the sensor retain option:
http://<ip_of_your_d1_mini>/cm?cmnd=SensorRetain%201

You should configure the availability_topic, payload_available, payload_not_available parameters in your sensor then:

- platform: mqtt
  name: "Water Tank Sensor"
  state_topic: ".../tele/SENSOR"
  availability_topic: ".../tele/LWT"
  value_template: "..."
  payload_available: "Online"
  payload_not_available: "Offline"
3

I have the following question:

As sensor is a reed switch (firmware tasmota) was directed to use the state_topic: "stat / tank3000 / POWER2 to monitor the sensor.

If you use tele / … I can not see the result just after 5 minutes

This is because it was necessary according to the tasmota manual to create a virtual relay and switch to monitor the value reed switch in this case would be power2

4

I’m assuming this implies you have to query power2 to get your information…

You could use PowerRetain then or you use the following automation (I’d prefer the automation).

- alias: "Water Tank state on hassio start-up"
  id: "wtsohsu"
  trigger:
    platform: homeassistant
    event: start
  action:
    - service: mqtt.publish
      data:
        topic: "cmnd/tank3000/power2"
        payload: ""
5

I have two tanks with 2 sensors.

How to use the automatism to update the status of the 4 sensors?

alias: "Water Tank state on hassio start-up"
id: "wtsohsu"
trigger:
  - platform: homeassistant
    event: start
action:
  - service: mqtt.publish
    data:
      topic: "cmnd/tank3000/power1"
      payload: ""
      topic: "cmnd/tank3000/power2"
      payload: ""
      topic: "cmnd/tank1000/power2"
      payload: ""
      topic: "cmnd/tank1000/power3"
      payload: ""

It’s not working right?
What can I do better in this code?

6

I’m on mobile, making it hard to prepare the code.

You have to repeat the service and data line for each entry (before each topic).

alias: "Water Tank state on hassio start-up"
id: "wtsohsu"
trigger:
  - platform: homeassistant
    event: start
action:
  - service: mqtt.publish
    data:
      topic: "cmnd/tank3000/power1"
      payload: ""
  - service: mqtt.publish
    data:
      topic: "cmnd/tank3000/power2"
      payload: ""
  - service: mqtt.publish
    data:
      topic: "cmnd/tank1000/power2"
      payload: ""
  - service: mqtt.publish
    data:
      topic: "cmnd/tank1000/power3"
      payload: ""

Please check indentation if it does not work…

7

Thanks, I’ll do it!