If you need to measure a distance, it is tempting to reach for the ubiquitous ultrasonic module like an HC-SR04. These work well, and they are reasonably easy to use. However, they aren’t without ...

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No matter how they’re used, all Internet of Things (IoT) devices have one thing in common: sensors. Whether they’re sensing the wearer’s heart rate, or the proximity of the car ahead or the viscosity ...

Sensors are all around. They are in automatic doors, at cash registers, in doctors’ offices and hospitals. They are used inside the body and outside. Sensors detect aspects of the physical world – ...