The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close proximity sensor. As you can ...

This tutorial will guide you through the process of building a tachometer around an Arduino ... the reading. Wiring and driving the LCD ends up being the hardest part. An IR transmitter/receiver ...

This specific sensor was chosen because others have successfully interfaced it with the Arduino ... hook up the IR temperature sensor to a re-purposed flexible iPhone headset wire.

The video demonstrates how to wire up a Passive Infrared Sensor (PIR) using 4-core security cables. All Gallagher inputs are balanced 4-state inputs and must have two 4k7 resistors wired at the device ...