AC Dimmer Component¶
This component has not been fully tested yet, if you are testing this component please share your experience with the dimmer hardware and light model and configuration here https://github.com/esphome/feature-requests/issues/278
ac_dimmer component allows you to connect a dimmable light or other load
which supports phase control dimming to your ESPHome project.
There are several already made boards which are compatible with this integration, for example the RobotDyn dimmer.
# Example configuration entry output: - platform: ac_dimmer id: dimmer1 gate_pin: D7 zero_cross_pin: number: D6 mode: input: true inverted: yes light: - platform: monochromatic output: dimmer1 name: Dimmerized Light
gate_pin (Required, Pin): The pin used to control the Triac or Mosfet.
zero_cross_pin (Required, Pin): The pin used to sense the AC Zero cross event, you can have several dimmers controlled with the same zero cross detector, in such case duplicate the
zero_cross_pinconfig on each output.
method (Optional): Set the method for dimming, can be:
leading pulse: (default) a short pulse to trigger a triac.
leading: gate pin driven high until the zero cross is detected
trailing: gate pin driven high from zero cross until dim period, this method is suitable for mosfet dimmers only.
init_with_half_cycle (Optional, boolean): Will send the first full half AC cycle Try to use this for dimmable LED lights, it might help turning on at low brightness levels. On Halogen lamps it might show at initial flicker. Defaults to
id (Optional, ID): Manually specify the ID used for code generation.
All other options from Output.
Dimming lights with phase control can be tricky, the minimum level your light turns on
might be different from other lights, also the perceived light level might not correlate
to the percentage output set to the light, to try to minimize these behaviors you can
tweak the values
min_power from this output component and also
the monochromatic light.