I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller ... Here is ...

[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.

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 ...

Likely applications are button designs and proximity sensing. The kit’s board also includes ... The devices and the kit use the EZ-Click software tool to configure capacitive sensing features. Also ...

Electronic enthusiasts may be interested in a new open source infrared sensor which has been created to support both Raspberry Pi and Arduino ... proximity sensor which has been built using ...

Instead of measuring light, we measure the ambient voltage field on pin A5 and use ... Arduino. A5 is used as a “floating input”, but unfortunately it is very noisy. The usual solution is to use some ...