It may be jarring to see varied sensors, sensible switches, cameras, and different expertise in a home constructed within the Thirties, like [Chris]’s was. However he nonetheless needed presence detection in order to not stub any toes at the hours of darkness. The result’s a sensor that blends in with the house’s aesthetics a bit higher than something you’re more likely to discover on the Massive Field electronics retailer.
For the presence detection sensors, [Chris] selected to go along with 24 GHz mmwave radar modules that, not like infrared sensors, can detect if a human is in an space even when they’re extremely nonetheless. Paired with the diminutive ESP32-S2 Mini, every pair takes up little or no actual property on a wall.
The radar module and ESP pair are arrange with some code to get them working in House Assistant, which [Chris] has supplied on the undertaking’s web page. With the whole lot up and working he has a module that may management lights with out utterly altering the aesthetic or habits of his dwelling. For those who’re nonetheless utilizing different presence sensors and are new to millimeter wave radar, check out this undertaking for a superb information on getting began with this pretty new expertise.
