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 ...
MUO on MSN

I save $50 a month by self-hosting these 4 open-source apps

The interface is also surprisingly polished for an open-source project. You can drag-and-drop files through your browser, ...
Liliputing

This Raspberry Pi 5 add-on gives you four more Ethernet ports

While the FPC connector on the Raspberry Pi 5 makes it possible to add hardware like PCIe NVMe adapters, a whole bunch of USB ...
Hackaday

Cheetah MX4 Mini: A Pint-Sized 3D Printer Controller

There’s a seemingly unending list of modifications or upgrades you can make to a 3D printer. Most revolve around the ...
NPR

Up First

December 30, 2025 • Conditions are dire for people in Gaza as President Trump and Israel's prime minister discuss the next phase of the ceasefire deal. And, Russia accuses Ukraine of an attempted ...