Edge Detection Robot Kit with Arduino Uno – Build a Table‑Sensing Robot That Never Falls Off

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine a robot that can sense the edge of any surface and brake instantly—perfect for tabletops, workbenches, and STEM challenges. This beginner‑friendly kit equips you with three TCRT5000 IR modules mounted underneath a 2WD chassis, paired with an Arduino Uno and L298N motor driver to teach the logic of boundary detection. In just 2–3 hours, you’ll assemble a robot that refuses to drive off the edge, learning how sensors talk to microcontrollers to make real‑time decisions.

What You'll Build

You’ll build a fully mobile robot that navigates any flat surface and stops automatically when its underside IR sensors no longer detect a reflection from the floor. The moment the sensor reading drops below a set threshold, the Arduino cuts power to both motors, halting the robot within centimeters of the edge. This demonstration of autonomous drop‑off sensing is a perfect foundation for obstacle‑avoidance and line‑following bots.

What You'll Learn

• How infrared reflection sensors detect changes in surface color and proximity
• Reading analog sensor values and setting threshold logic in Arduino code
• Controlling DC motors with an L298N H‑bridge driver and pulse‑width modulation
• Building a feedback loop where sensor data directly triggers motor halt (real‑time decision‑making)

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for young innovators aged 8 to 15, CBSE students working on STEM projects, ATL Tinkering Lab inventors, and B.Tech first‑year students exploring sensor integration. It’s also a safe, low‑risk introduction for parents and educators running robotics workshops without worrying about robots falling and breaking. Smart India Hackathon participants can use it as a foundational sensor‑response module before scaling to larger autonomous vehicles.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.