Fan with 3 speed and one switch (relay controlled)

ESPHome
1

I have an esp connected to 1 relay to trigger a fan push button and I’m really struggling understand how to make this work.

The fan is normally at speed 1.
To trigger speed 2 the relay needs to be trigger for half a second, same to go from 2 to 3 or from 3 to 1. Also after 1 hr of being on speed 2 or 3 it goes automatically to speed 1.
I would like to have a dashboard that shows as speed the slider which goes from 1 to 3 and the automatic return to 1 after the timer.

I was able to make the binary fan example work but not the triggering of the turn off of the relay.

Any help please?
dk

2

Did you have some work in progress config?

I think you’ll need a number template or similar to track the fan speed and drive a timer.

For your auto 1hr timer you could look at building your own timer (if you would like to see a countdown) or look at for conditions.

See around here for timer example.

globals:
#Helpers for the timers

Can you detect when the fan speed changes or only trigger it?

3

I appreciate the hints. So far this is what I got:

The log information does not display the right value. Aslo would like some sort of control on a dashboard that shows the speed (a button three speeds/state). The moment the state is the state of the switch. I don’t know how to link the “fan:” structure

number:
  - platform: template
    id: fan_speed
    optimistic: true
    min_value: 1
    max_value: 3
    step: 1

switch:
  - platform: gpio
    pin: GPIO16
    id: fan_switch
    name: "fan"
    icon: "mdi:fan"
    on_turn_on:
    - delay: 500ms
    - switch.turn_off: fan_switch
    - number.increment: fan_speed
    - script.execute: fan_timer_script
    - logger.log:
        format: "Fan speed changed: %d"
        args: [ 'id(fan_speed).state' ]

script:
  - id: fan_timer_script
    mode: restart
    then:
      - delay: 1 h
      - number.increment: fan_speed
4

I’m still not clear how to create the fan view in the dashboard with the 3 states, is this possible via the config of esphome or should it be done via home assistant template? What would be the best?