Due to the fact that humidity levels are different during the summer and winter, a static humidity level switching the fan is on/off is not possible. This binary_sensor detects high rises in humidity and switches on. And switches off when the humidity is back to normal.
Inspired by: https://www.domoticz.com/wiki/Humidity_control
In your configuration.yaml you'll need:
binary_sensor:
- platform: generic_hygrostat
name: Bathroom Hygrostat
sensor: sensor.bathroom_climate_humidity # Source humidity sensor
attribute: humidity # Optional use sensor attribute instead of state.
delta_trigger: 3 # Optional humidity swing to detect. Default = 3
target_offset: 3 # Optional dehumidification target offset. Default = 3
min_on_time: 300 # Optional min on time in seconds. Default = 0 seconds
max_on_time: 7200 # Optional safety max on time in seconds. Default = 7200 seconds
sample_interval: 300 # Optional time between taking humidity samples in seconds, default 300 seconds
min_humidity: 30 # Optional minimum humidity to enable dehumidification. Default = 0
unique_id: bathroom_hygrostat # Optional ID that uniquely identifies this sensor. Set this to a unique value to allow customization through the UI.It will create a binary sensor called binary_sensor.bathroom_hygrostat.
Next, add some automations to switch your fan:
automation:
- alias: Bathroom Hygrostat On
trigger:
platform: state
entity_id: binary_sensor.bathroom_hygrostat
to: 'on'
action:
- service: switch.turn_on
entity_id: switch.fan
- alias: Bathroom Hygrostat Off
trigger:
platform: state
entity_id: binary_sensor.bathroom_hygrostat
to: 'off'
action:
- service: switch.turn_off
entity_id: switch.fan- In HACS Store, search for [basschipper/homeassistant-generic-hygrostat]
- Install the custom integration
- Setup the generic hygrostat custom integration as described above
- Clone this repo
- Copy the
custom_components/generic_hygrostatfolder into your HA'scustom_componentsfolder - Setup the generic hygrostat custom integration as described above