[Klaus] wanted some sort of aid for parking his car, and after running across a $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus ...

MEMS (micro-electromechanical systems ... the project manager at Fraunhofer. But the ultrasonic sensor can do even more. It ...

[Andy] demonstrates building an ultrasonic anemometer using a cheap after-market parking distance sensor kit and an Arduino ... and wire in an Arduino Pro Micro and a few passives to take control ...