I recently had to build an infrared ... of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit ...

Involving some IR LEDs, perhaps a bit of LEGO ... adjusting its path using a steering motor salvaged from a power wheelchair. An Arduino Mega Pro Mini handles the logic, sending PWM signals ...

We’d seen it done with buttons, switches, gestures, capacitive touch, and IR remote ... in LED) to use the LED itself as a temperature sensor. A diode’s voltage drop depends on two things ...