What’s the radar enthusiast to do? While it’s not radar, subbing in ultrasonic sensors is how [Dzl] built ... and a series of filters were implemented in code to clean up the audio and ...

To supply targeting data for the launcher, an Arduino Uno uses an ultrasonic sensor pair mounted atop ... as a useful classroom demonstration of radar-like targeting techniques to a young audience.

Tesla's autopilot detects the car's surroundings three different ways: with radar ... sensors, they used a function generator or a tiny Arduino computer for creating certain voltages, and an ...