Sensor: last time usage info

1

Hi

I’m looking how to monitor the most recent usage of my boiler/heating.

It controlled with switch component and I can successfully monitor the total usage (for example) of the recent day by using sensor.history_stats

For example if my boiler worked last time today between 13:00-13:45, there’s what I want is to get:

  1. For how long it was ‘on’ until it turned ‘off’ (for example “45 minutes”)
  2. When it went last time from ‘on’ to ‘off’ (for example “today, 13:45”)

Thanks!

2

Nobody answered, so digged a bit by myself, here’s the solution:

image

- alias: "Update Last Boiler On"
  initial_state: 'on'
  trigger:
    - platform: state
      entity_id: switch.boiler
      from: 'off'
      to: 'on'
  action:
    - service: variable.set_variable
      data:
        variable: last_boiler
        attributes_template: >
            {
              "last_on": "{{ states.switch.boiler.last_changed }}",
              "last_off": ""
            }
        value_template: "{{ relative_time(now()) }}"

- alias: "Update Last Boiler Off"
  initial_state: 'on'
  trigger:
    - platform: state
      entity_id: switch.boiler
      from: 'on'
      to: 'off'
  action:
    - service: variable.set_variable
      data:
        variable: last_boiler
        attributes_template: >
            {
              "last_off": "{{states.switch.boiler.last_changed }}"
            }
    - service: variable.set_variable
      data:
        variable: last_boiler
        value_template: '{{((as_timestamp(now()) - (as_timestamp(states.variable.last_boiler.attributes.last_on))) /60 ) | int }} minutes'
         
- alias: "Update Boiler Use Ongoing"
  initial_state: 'on'
  trigger:
    - platform: time
      seconds: '/5'
  condition:
    condition: state
    entity_id: switch.boiler
    state: 'on'    
  action:
    - service: variable.set_variable
      data:
        variable: last_boiler
        value_template: '{{((as_timestamp(now()) - (as_timestamp(states.variable.last_boiler.attributes.last_on))) /60 ) | int }} minutes'
1 Like
3

Just what i was looking for, thank you.

4

@radinsky, noticed the last usage and ongoing isn’t getting updated as of last HA update . Do you know what changed ?

5

I’m still on 117.6, which version are you running?

6

Update : Resolved, started working after a reboot, removed the “template” as mentioned in the post.

ah ok, im on 0.118.1 . somehow the timers keeps running without stopping, found there has been a change in the way template is used , but still fails

trying to seek solution on another thread.