Line Follower Robot - PID vs Non-PID

This repository contains the firmware for a line follower robot demonstrating two control methods: PID (Proportional, Integral, Derivative) and Non-PID (simple threshold-based).

Features

• Non-PID line following (threshold-based)
• PID line following for smoother and faster control
• Adjustable Kp and Kd constants in PID software
• Sensor reading and motor correction logic

Hardware Used

• Infrared line sensors (QTR-8RC) and holder
• DC motors (micro reduction)
• Motor driver (L298P Shield)
• Microcontroller (Arduino Uno) and proto shield
• Mini Sumo Robot Body with Tracks

How to Use

1. Open Arduino IDE
2. Open either "Line_Follower_PID.ino" or "Line_Follower_NonPID.ino"
3. Upload to your microcontroller
4. Connect the sensors and motors as shown in the wiring diagram
5. This robot has only 6 pair IR sensor!!!

YouTube Video

Full video and calibration process is available here:
https://youtu.be/0R3Sow6XPbE

License

This project is licensed under the MIT License.

Contributions

Feel free to open issues or submit pull requests for improvements.