A cadence sensor is a compact cycling device that measures pedaling rate in RPMs to provide real-time feedback.

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 ...

In a way, the magic of a soil moisture sensor’s functionality boils down to a simple RC circuit. But of course, in practice there is a bit more to it than that. [rbaron] explains exactly how ...

Haptic sensors have been around for a while now and come in various forms. Regardless of the type of haptic technology utilized, they all work around similar principles of using a combination of force ...

Smart lights are a great way to enhance home security. Being able to flip on the lights remotely or automatically, you can give the impression that someone is home and expose potential intruders. It’s ...

Modern vehicles rely on a massive amount of electrical systems, sensors, and control modules to keep the wheels turning. Some of those devices are well-known, like your car's main computer or engine ...

Workplace accidents are a huge problem in the U.S., where costs from occupational injuries, illnesses, and fatalities have exceeded $250 billion annually. Addressing these problems requires a ...

We tested the Galaxy S10+'s ultrasonic fingerprint sensor against the Galaxy S9+ with dry, wet, and dirty fingers. I'm that 5G guy. I've actually been here for every "G." I've reviewed well over a ...

The ESP32 is a fantastic little microcontroller with a world of possibilities. Its specifications may appear modest, but its capabilities enable it to power all kinds of devices. From an LED matrix to ...