Casella Launches Its Enhanced 620 Sound Level Meter to Protect Workers from Noise-induced Hearing Loss. The new device offers significant upgrades such as time history profiling, voice notes and GPS.

To that end, Jell-Ometer (with the second syllable pronounced “law”) offers “jiggle” read-outs on a 10-point scale. A “3” is ...

Noise in animal housing facilities is an environmental variable that can affect hearing, behavior and physiology in mice. The authors measured sound levels in two rodent housing rooms (room 1 and room ...

Back in 2017, Hackaday featured an audio reactive LED strip project from [Scott Lawson], that has over the years become an ...

There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, ...

I’ve been writing and editing technology articles for more than seven years, most recently as part of PCMag's software team. I am responsible for content in the AI, financial, graphic design, ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› by Rachel Cericola If you use a security camera, you need to choose where your ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

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Abstract: Direct eye-pattern measurements based on a deep-ultraviolet (DUV) light emitting diode (LED) optical wireless communication system were performed in sunlight. A state-of-the-art, high-power ...