ESPHome PWM fan using a Wemos D1 mini lite

ventilation.yaml

# Controlling my Buva Qstream ventilation system using:
# * A Wemos D1 mini lite (an ESP8266 based board)
# * A Wemos power shield so I can power the Wemos from the ventilation units 12V supply.
# * A simple PWM to 10V convertor like this: https://www.cheaptech.nl/pwm-signaal-te-voltage-converter-1-3-khz-0-10-v-pw.html
# * The amazing ESPHome firmware tool: https://esphome.io
# * Home Assistant to tie it all together: https://www.home-assistant.io
#
# I used to use a Raspberry Pi and some Python code for this. See https://gist.github.com/SqyD/a927ab612df767a0cc892bcde23d025c
# The Wemos approach seems more stable and doesn't require external USB power.

esphome:
  name: ventilation
  platform: ESP8266
  board: d1_mini_lite

wifi:
  ssid: "SSID"
  password: "secret"

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

output:
  platform: esp8266_pwm
  pin: D3
  frequency: 5000 Hz
  id: pwm_output

fan:
  platform: speed
  output: pwm_output
  name: "Ventilation"
  speed:
    low: 0.05
    medium: 0.4
    high: 1

@SqyD How are you able to use the custom speed setting on the fan? It looks like it was deprecated a while back:

@poldim It's pretty easy. Replace the whole speed section (line 38 - 41) in your screenshot with speed_count: 100.

@SqyD How are you able to use the custom speed setting on the fan? It looks like it was deprecated a while back:

@poldim It's pretty easy. Replace the whole speed section (line 38 - 41) in your screenshot with speed_count: 100.

Thanks, I was hoping to be able to use a few non linear set points for a ventilation fan of mine but it appears that's no longer an option. I'm going to play around with some template options that might allow it to work.

BTW, do you know the model of that ventilation you had in your old apartment?

BTW, do you know the model of that ventilation you had in your old apartment?

@poldim The model is mentioned in the first line of the comment of this yaml.