Ultrasonic proximity sensors use reflected or transmitted ultrasonic waves to detect the presence or absence of a target component. The output is boolean, that is, the sensor merely detects whether ...

like with this ultrasonic flow meter, could be a big deal for DIY projects and the trades in general. The principle behind the sensor [ItMightBeWorse] is working on is nothing new. He discovered a ...

While the ultrasonic sensor used in this project has a range of about a meter, there’s no reason that this principle couldn’t be used for other range-finding devices to extend its working ...