How to build your own air quality meter with a Raspberry Pi and CO2 sensor

In winter, it’s important to ventilate living and working spaces regularly. Here’s how to make a homemade measuring station ...

How to Block Ads on Every Device, Anywhere, with Pi Zero 2 W, Pi-Hole, and Tailscale

Filter ads across devices with Pi-hole and Tailscale on a Pi Zero 2 W, using a static IP and router DNS for smoother browsing ...

LEDs Offer Low-Cost Visible Light Communication

Researchers have developed a low-cost visible light communication (VLC) system using commercially available hardware that ...
Hackaday

LED sign

What happens when someone’s personal project is turned into a startup which becomes something of a publicity darling, then collapses with very little product shipped and takes all its customers’ money ...
Interesting Engineering on MSN

Alternative wireless technology achieves stable outdoor data transmission using LEDs

Scientists have developed a low-cost visible light communication (VLC) system using commercially available hardware ...