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.

The robot’s hardware was constructed in accordance with the Open Robotic Platform (ORP) rules. This included two DC motors, an UNO R4 Minima, a Bluetooth module, and an SD card.

Whether it’s a simple Solarbotics photovore BEAM robot kit, the PID op-amp circuit used in this line following robot, the wide variety of analog op-amp and traditional BEAM circuitry used in ...