Build a Smart Blind Stick Obstacle Detector with Arduino Uno & Ultrasonic Sensors

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

What if a simple robot could navigate a maze entirely on its own, using only two ultrasonic eyes and a left-hand-following rule? This kit lets you build that robot — a self-driving car that demonstrates the core technology behind smart canes for the visually impaired. By applying the same principles that guide real-world accessibility devices, you’ll assemble a two-sensor obstacle detection system and program it to follow walls autonomously.

What You'll Build

Your finished project is a 2WD robot car that uses dual HC-SR04 ultrasonic sensors to detect walls and obstacles. With the left-hand wall-following algorithm loaded onto the Arduino Uno, the robot smoothly navigates through a simple maze, always keeping the left wall at a set distance while avoiding collisions. It’s a tangible demonstration of how assistive technology can empower independent mobility.

What You'll Learn

• Wiring dual ultrasonic sensors and an L298N motor driver to Arduino Uno
• Reading accurate distance measurements from HC-SR04 sensors
• Designing a left-hand wall-following algorithm using sensor feedback
• Calibrating motor speeds and sensor thresholds for smooth autonomous navigation

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Young innovators aged 10+ in STEM clubs, CBSE Class 11-12 students prototyping for accessibility hackathons, and B.Tech ECE/EEE undergraduates building proof-of-concept projects will find this kit invaluable. It aligns perfectly with Smart India Hackathon challenges on disability assistance and ATL Tinkering Lab modules on autonomous systems.

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.