Infrared certainly has its uses, but if you’re trying to locate objects, ultrasonic detection is far superior. It’s contact-less, undetectable to the human ear, and it isn’t affected by smoke, dust, ...

Newer cars often bring neat tech, like rear–facing cameras and sensors so you don’t back into another vehicle (or a living thing). For anyone driving an older car, it’s not only a matter of envy to ...

Just about every “getting started with microcontrollers” kit, Arduino or otherwise, includes an ultrasonic distance sensor ...

[Photo: Randy Sarafan] If you ever bought yourself or your kids a remote-control car, you’ll know how quickly people get bored of them, leaving the toy tossed to one side. However, if you were looking ...