How to Build Your First Obstacle-Avoiding Robot 

Introduction 

An obstacle-avoiding robot is the ideal first project for beginners. It’s simple, fun, and introduces you to sensors, motors, and programming. 

Step-by-Step Guide 

1. Choose Your Microcontroller 

1. Arduino UNO is recommended for its simplicity. 

2. Gather Components 

1. Ultrasonic sensor (HC-SR04) 

2. DC motors with wheels 

3. Motor driver (L298N) 

4. Battery pack (Li-ion or 9V) 

5. Chassis kit 

3. Assemble the Robot 

1. Fix motors and wheels to the chassis. 

2. Mount the ultrasonic sensor in front (acts like “eyes”). 

3. Connect motors to the motor driver and motor driver to Arduino. 

4. Write & Upload the Code 

1. Program Arduino to read distance from the ultrasonic sensor. 

2. If an obstacle is too close, the robot should stop and turn. 

5. Test & Improve 

1. Run the robot and watch it avoid obstacles. 

2. Adjust sensor angles or speed for smoother movement. 

Conclusion 

Building this robot teaches you the fundamentals of robotics: sensing, decision-making, and action. All the required parts are available in our store — so you can build your first autonomous robot today.