PCWorld explains how to create an affordable CO2 air quality monitor using a Raspberry Pi and MH-Z19C sensor for under $40. This DIY project helps monitor indoor air quality since high CO2 levels ...

The MAP sensor is an important part of a car's operating system. But lots of things can make it go bad. Here's how you'll ...

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

To use the Matioscope in Quarantine Zone: The Last Check, point it at the patient's eye and click ( LMB/RT/R2 ). Then focus ...

I used Microsoft's free Windows 11 battery health tool to diagnose my PC - and got helpful results ...

This all-purpose presence sensor is a master at monitoring indoor activity and linking it to smart home features you already use. For more than 10 years Tyler has used his experience in smart home ...

There's also a tempting £4,000 prize up for grabs VIRGIN Media and O2 customers could bag an entire year of free broadband or mobile billing. The twinned network giants have unleashed a flurry of ...

Your car is basically a rolling computer network, and that little “check engine” light is the car begging you to read the ...

Herrmann also struggles without Mouch.

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Over on YouTube [Kiss Analog] reviews the New Zoyi ZT-QB9 Smart Clamp meter. If you’re putting together an electronics lab ...