Electronics is an expensive hobby. You often need to buy expensive hardware to complete a small hobby project. Fortunately, searching will give you a long list of cheap “retired” parts. If you’re sure ...

WEMOS Wireless DIY door alarm sensor with Home Assistant article that contains the code, libraries, diagrams, 3D print files and more information promised in the step-by-step youtube video below ...

The build relies on addressable WS2812B LEDs as the core of the design. While they’re not necessarily the fanciest LEDs for balanced light output, they are RGB LEDs, so they can put out a ton of ...