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 ...
Hackaday

Putting A Cheapo 1800W DC-DC Boost Converter To The Test

These days ready-to-use DC-DC converters are everywhere, with some of the cheaper ones even being safe to use without an ...

Jackery Goes Big at CES 2026 With Rugged Power Station, Solar Gazebo & Solar Robot

Jackery has announced three very compelling products at CES 2026, including a rugged power station, solar gazebo, and solar ...
Team-BHP

I installed the entire Tata Manza's dashboard in my old Indica Vista

BHPian Skyline_Vista recently shared this with other enthusiasts:Hello BHPians, Arsh this side.I'm back again with another ...
Hackaday

Trace Tracing To The Tunes

Some kind of continuity beeper has been a standard piece of gear since the dawn of electronics. Sure, you probably have an ...

Review: ‘The Copenhagen Test’ asks: Who can you trust?

Most things in this world have their good points and their not-so-good points, and this is certainly true of “The Copenhagen ...
Electronic Design

Power Monitor with Alerts and Alarms Requires Minimal Self-Power

These similar power-measurement ICs tackle the often necessary but energy-consuming task of continuous power measurement and ...

8 HDMI tricks to get the best performance from your TV - and most are free

If your devices only support up to 4K at 60Hz, a "premium high-speed" HDMI cable (18Gbps, HDMI 2.0) is perfectly fine. Again, just avoid really old or thin cables. Early HDMI cables (HDMI 1.4 or older ...