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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You’ve probably seen them—sensors watching from the corners of ...

MIT researchers have created a new underwater sensor and communication system that doesn’t require batteries, and barely uses any power at all. This could help set up an underwater Internet of Things, ...

You will learn about how electric vehicles work differently from gasoline or diesel fuel powered vehicles and the major types of electric vehicles. We then explain the unique components of full ...