Makers, Arduino enthusiasts and students looking to learn more about ultrasonic sensors, may be interested in this DIY Arduino radar created by Mr Innovative. Capable of detecting objects placed in ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

When we think about radar, we picture rotating dishes scanning the skies from atop air-traffic control buildings, radomes peering across the sea from coastal hilltops, and roadside police checking the ...