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I made a controller to dim my lamp through my smart home (feddit.de)

submitted 1 year ago by [email protected] to c/[email protected]

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This is the prototype of my dimmer, which actually works quite well. It fades smoothly between different brightness settings. It gets MQTT messages from homebridge, so it can be controlled via Apples Homekit.

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[–] [email protected] 1 points 1 year ago (1 children)

Yes exactly. The idea is basically the same as PWM, but in this case the frequency is given through the 50Hz of the power grid. You just control how much of each half wave you turn the light on. As our eyes are slow we just conceive it as an overall lower brightness.

[–] [email protected] 1 points 1 year ago

Apparently some people can get headaches from the flickering