Apart from the Arduino UNO, the circuit consists of two more primal ... For example, I used the output signal of the proximity sensor to trigger my old wireless doorbell thru an optocoupler after ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ... You only need to supply a short pulse to the trigger input to start the ranging, and then the module ...

Light is emitted and the sensor will trigger if it can't detect its reflection ... using a variety of methods. In this case, Arduino distance sensors use sound to work out how distant objects ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

[Andy] demonstrates building an ultrasonic anemometer using a cheap after-market parking distance sensor kit and an Arduino. Demo video after the break. Aside from the price, these kits have the ...

Likely applications are button designs and proximity sensing. The kit’s board also includes ... The kit works as a stand-alone unit and as an Arduino-compatible shield. It can be used to add a ...

Why not create your very own high-speed camera trigger using an Arduino, piezoelectric sensor (as a sound sensor), a DSLR camera, and an external flash. Watch the video after the break to see it ...