Smart-Home @feddit.de plantsandtrees @feddit.de 1 yr. ago

I made a controller to dim my lamp through my smart home

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.

5 comments

What voltage does the lamp have and is the lamp led? Looks like a fun project ;)
- Yes it is a led light bulb working on 230 ac. This works like any other triac phase dimmer, but it was indeed a fun project to try for yourself! Basically I build a another shelly device, but for far less money ;)
  
  Cool, I had to look triac up as I didn’t know how it works. I thought dimming would just reduce the voltage. How did you implement it? Is it all done by the esp? (So I read that triac dimming is done by switching the currant on and off very quickly, is that correct? What frequency are you using?)