Hackaday’s Elliot Williams and Al Williams were in a retro mood this week. There was a new ‘486 computer, a new mechanical TV, and a USB stick with a magnetic personality. Can you ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. June 22, 2026 Add as a ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

You've got no excuse not to try them.

Imagine a "smart nose" installed in a room. Using electronic sensors (gas and particle detectors), this system constantly smells the air for dust, humidity, temperature, and toxic gases (like carbon ...

Arduino Uno: Drag and drop the Arduino Uno R3 board from the components panel into your workspace. PIR Sensor: Search for the PIR sensor in the components panel and drag it into the workspace. LED ...