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 ...

The part list consists of one Arduino, two resistors, and one IR emitter. That’s right, an emitter. When an LED (IR or otherwise) is reverse biased it can act as a light sensor. The main ...

[Gregory] figured out the codes by using an Arduino to read the output of the TV’s remote with an IR sensor. The hook here is the code is written in MicroPython, using IR libraries from [Peter ...