ROBOTICS & AUTOMATION
Line Follower Robot
Create a robot that follows a dark line using IR sensors and differential wheel control.
LevelSchool / Beginner
Duration1–2 Weeks
Components₹1,800–₹3,000 CodingLow
Project overview
Create a robot that follows a dark line using IR sensors and differential wheel control.
Create a robot that follows a dark line using IR sensors and differential wheel control.
Components / materials required
✓Arduino Nano
✓2WD chassis
✓IR sensor array
✓Motor driver
✓Geared motors
✓Battery
✓Wheels
✓Jumper wires
What the project demonstrates
✓IR-based line detection
✓Left/right correction
✓Speed tuning
✓Optional junction detection
Suggested build plan
01
Chassis assembly
Build and wire the mobile base.
02
Sensor calibration
Read IR sensors over the track.
03
Control logic
Program left/right correction.
04
Track tuning
Tune speed and sensor thresholds.
Learning outcomes
✓Learn closed-loop correction
✓Understand reflectance sensors
✓Tune motor speed
✓Build a competition-ready demo