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 ...

Working with circuits and LED lights guides students to test ideas, troubleshoot problems, revise plans, notice patterns, and ...

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 ...

For such an inexpensive, tiny little SBC, it certainly gives me a lot of fun and assistance in a number of projects ...

Split-flap displays are a great, low-power way to display text to a wide audience. Compared to other display technologies like LCDs they only use energy when the characters change, but have fallen out ...

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 ...

Odyssey Grow Arduino Grow! Get ready to learn about digitalizing agriculture by creating a fully automatic watering system to grow a plant! See how you can make a change as it grows throughout the ...