Have you ever been in a situation, whether in a conference room, a private office, or a room in your own home, where you can't tell if someone is inside (or if the light is on) from the outside ...

I found an incandescent filament-style numeric display tube (Numitron) called the "IV-9" that I bought a long time ago, sleeping in the back of my desk. Thinking, "If I don't touch it now, it might ...

[Dominic Buchstaller] wanted a neat, tidy entryway keypad that actually looked good. Prime goals were something slim, wireless, and with no visible screws. Dependency on the cloud was also a no-go.

Espressif’s ESP32 series is the go-to choice for many people looking to take on microcontroller-powered projects. Not only are they cheap and versatile, but they’re also available in a variety of ...