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 ...

Build a Fast Offline AI Assistant on a Raspberry Pi 5

Build a fast, private offline chatbot on Raspberry Pi 5 with the RLM AA50, 24 TOPS, and 8GB DDR4 to get instant voice replies ...
Hackaday

Tired Of Burnt Fingers? Try PID Tuning The Hot Glue Gun

Hot glue guns are pretty simple beasts: there’s an on/off switch, a heating element, and a source of current, be it battery or wired. You turn it on, and the heater starts warming up; ...
Hackaday

Chamber Master: Control Your 3D Printer Enclosure Like A Pro

Having an enclosed 3D printer can make a huge difference when printing certain filaments that are prone to warping. It’s easy enough to build an enclosure to stick your own printer in, but ...
XDA Developers on MSN

I built a ghost-proof ESP32-powered presence sensor and here's how it works

Bermuda enables device proximity in a room without using any trackers or apps. Using an ESP32, it works as a Bluetooth proxy, ...
CNET

The Common Thermostat Mistake Costing You Hundreds This Winter

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...