[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. The ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Two tiny ICs and a few passive components can yield a capacitive proximity sensor with excellent sensitivity and extremely fast response time. The circuit’s operation leverages the pulse-front-edge ...

More and more mobile devices are being used in enterprises everywhere, from tablets, to phone, all the way through netBooks and laptops. This mobility frenzy comes with the added hassle of having to ...

iPhone and iPad users are already very familiar with something called “proximity pairing.” First introduced with iOS 11, this feature lets users transfer backup and other data from one device to a new ...

[Dustin Andrews] built this add-on board which works as a proximity sensor. He wanted a standalone sensor for his Arduino projects which would use a single pin as a trigger. This lets him alert the ...