Design Line Tracker
30 minutesChoose IR reflectance sensor array layout and define track width and line color.
Field context
This workflow is part of 3 niche fields
Complete guide for line following robot — step-by-step workflow, tools, checklist, and expert tips to get started.
Choose IR reflectance sensor array layout and define track width and line color.
Estimate initial Kp, Ki, Kd values and control loop sampling rate for line following.
Mount sensor array, wire to microcontroller ADC, and calibrate white/black thresholds.
Run PID loop on test track, tune gains for speed vs stability, and log error values.
Interactive 4-phase technical roadmap from prep measurements to final inspection.
Accurately gauge working surface dimensions, inspect sub-layer conditions, and establish reference benchmark baselines.
Adjust project scale to dynamically estimate required materials & budget for Line Following Robot Guide.
Covers 165 sq ft required materials.
Estimated essential tools & safety gear.
Baseline DIY execution cost estimate.
Estimate initial PID gains for line position error correction.
Set control loop frequency relative to robot speed and track curvature.
Convert motor RPM and wheel size to linear track speed.
Verify odometry matches actual distance on timed track runs.
Key benchmarks for line following robot.
| Step | Action | Result |
|---|---|---|
| 1 | Set I=D=0 | Oscillating P |
| 2 | Add D | Less overshoot |
| 3 | Add small I | Fix steady error |
Paper and vinyl reflect IR differently — always calibrate on competition surface.
Tune proportional gain first until oscillation, add derivative to damp, then small integral for steady-state error.
Line follower chassis works for sumo and maze bots — invest once in a solid base platform.
Crucial code requirements, material risk alerts, and prevention checklists for Line Following Robot Guide.
⚠️ Risk Warning: Purchasing net calculated material causes project delays when cuts or breakage occur.
💡 Prevention Action: Always add a 10%-15% buffer allowance to initial calculated quantities.
⚠️ Risk Warning: Applying finishes to dusty or uneven surfaces reduces adhesion by up to 60%.
💡 Prevention Action: Vacuum, prime, and check levelness (max 1/8" gap over 10 ft) before starting.