In the second phase, the logic operates two drive motors (left and right) as per the informed track status. The infrared sensor card contains infrared light emitting diodes and infrared photodiodes.

These modules, typically seen in line following robots, are ideally suitable for white/black line detection. You can also see them in certain entry alarm systems. HW-006 Module – A Brief Overview. The ...

The build relies on the classic Arduino Uno microcontroller, which talks to a HC-SR04 ultrasonic sensor module and two infrared sensors in order to track a human target and follow it around.