This project involved designing an autonomous navigation system built around a color sensor. The goal was to create a robot capable of following a specific blue-colored line through a maze containing multiple lines of different colors — requiring the system to distinguish and track only the target path.
The hardware setup used two DC motors controlled via a Raspberry Pi's GPIO pins. All control logic was written in Python, handling motor speed, direction, and movement decisions based on detected color intensity values from a frequency-based RGB sensor.
A lightweight state system managed line tracking, crossroad detection, and directional correction — using closed-loop sensor feedback and PWM-based speed control to keep the robot on path in real time.
