A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the ...

Without any delays, here are the best Phones with Ultrasonic Fingerprint Sensors (January 2026) that make the cut: ...

Raspberry Pis and Home Assistant are a match made in heaven. The former is great at sensing the world around it and collecting data, and the latter is amazing at taking in data, making decisions, and ...

Researchers have developed a low-cost visible light communication (VLC) system using commercially available hardware that ...

If you’ve got a smart home, or you just want to know how soaked your garden is getting in the winter, you might want to measure rainfall. There are a bunch of ways to go about it, and this capacitive ...

The autumn sales circuit lost two of its much-loved and most respected participants this year in Jim and Anne Collins. Both were in their mid-eighties, had been together for more than 50 years and had ...

If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds ...

It's currently available for preorder at $30. Anker introduced a nifty little charger at CES, which is a refresh of the pre-existing Nano Charger. It costs $30 right now. If you want a wireless ...

The Smart Air Purifier project is designed to monitor indoor environmental conditions and automatically control an air purifier based on sensor readings. The system is built using a Raspberry Pi Zero ...

This work presents a diagnosis strategy of transistor open-circuit faults for three-phase dual-active bridge DC-DC converters. The diagnostic approach evaluates the DC components of the phase currents ...

Abstract: This paper presents and experimentally validates various topologies of one-port reflective-mode phase-variation permittivity sensors based on weakly coupled step impedance resonators (SIRs), ...