This project presents a purpose-built 16-channel line follower sensor PCB engineered for precision robotics. Designed to give robots a clear, high-resolution view of the track, the board places sixteen IR reflective sensors in a tight, evenly spaced array—ideal for fast line detection, sharp turns, junction handling, and stable PID control.

At the hardware level, the PCB focuses on signal clarity and consistency. Each sensor channel is laid out symmetrically to ensure uniform response across the array, minimizing edge bias and calibration drift. Clean power distribution, proper decoupling, and short signal paths help reduce noise—crucial when sampling many analog signals at high speed. The result is reliable contrast detection on common surfaces, from white tape on dark floors to painted tracks.

The board is designed to be microcontroller-friendly, exposing either individual analog outputs or grouped headers that connect directly to popular controllers used in line follower competitions. The wide sensor count allows advanced algorithms to estimate line position with sub-sensor accuracy, enabling smoother curves, higher speeds, and better recovery when the line is partially lost.

Compact dimensions and mounting holes make the PCB easy to integrate into small robot chassis without blocking wheels or motors. Whether you’re building a beginner line follower or a competition-grade robot that needs aggressive tuning, this 16-array sensor PCB provides the resolution and reliability needed to push performance further. In short, it’s a clean, competition-ready sensor front end—designed to turn raw reflections into confident, high-speed line tracking.

Credit & Acknowledgement

Complete Design & Engineering Credit: Andreifilimon (This project is shared for educational and community reference purposes)