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 has neither. The black PCB seen to the right of the robot is an IR reflectance sensor. It shines an IR led at the floor and picks up what reflects back. [Sean] added this hack because the ...

[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 ...