The sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

Technicians swapped seals at the launch pad after hydrogen gas leaked from the rocket’s main fueling line earlier this month. This time, the seals held. “For the most part, those fixes all performed ...

A professional-grade water tank monitoring solution using LoRaWAN technology for long-range wireless communication. Features a beautiful real-time web dashboard for monitoring tank levels remotely.

Having a hard time finding a job? You’re not alone! This week, a new report found that layoffs in the United States hit their highest January total since the Great Recession of 2009. U.S. employers ...

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the top heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...

With over six years of product testing experience, Rebecca knows exactly which laundry appliances will cut the mustard - or hopefully just remove it. From simple maintenance tips to answering your ...

The MAX471 is an older current sensor which can handle up to 50 Watt, with a maximum of 25 Volts or a current of 3 Amperes. It is officially not supported any more however there are still many for ...

Abstract: This article presents a portable optical fiber sensor (OFS) design for continuous liquid level measurement, fabricated using two pieces of bare polymer optical fibers (POFs). The proposed ...

Abstract: Ultrahigh frequency (UHF) passive radio frequency identification (RFID) tag-based sensors are proposed for intravenous (IV) fluid level monitoring in medical Internet of Things (IoT) ...