This tiny, inexpensive microcontroller makes it easy to build reliable, room-by-room Home Assistant sensors without paying the smart home tax.

Imagine walking into a room that automatically adjusts its temperature and humidity to your comfort level, no apps, no manual adjustments, just seamless automation. Sounds futuristic? Not anymore.

Temperature sensors are an important yet often overlooked part of a HomeKit setup. Even working as a passive tracking device, I want to add them to every room to understand more about what’s happening ...

Stand on the shoulders of giants.

When smart home devices were first introduced, motion sensors were among the most interesting. This sensor would use differences in light to detect activity in a given space—impressive, but imprecise.