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 ...

This AirTag alternative fits in my wallet and works just as well with Android phones

Rolling Square's AirCard Pro Dual features one of the loudest buzzers I've tested, along with glow-in-the-dark inserts.

How I use Samsung's secret Wi-Fi menu to seriously improve my connectivity

The Intelligent Wi-Fi Handover feature works hand in glove with mobile data switching to improve your connectivity. It works by monitoring your Wi-Fi connection to reduce freezes and lag when Wi-Fi is ...
Macworld

You don’t need to be tethered to your scanner —the iScanner App is now just $28

Get lifetime access to iScanner for just $27.99 with code FLASH—scan, edit, and manage documents on your mobile device ...
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How to Make a DIY Smartphone Laser Pointer (Headphone Jack Project!)

Discover how to build your own DIY laser pointer that connects to your smartphone's headphone jack and is controlled via an app. This step-by-step guide covers preparing the audio jack, soldering the ...