Create an intelligent robot that can track and follow a person using an Arduino Uno, L298N motor driver, and sensors! This project is perfect for beginners and robotics enthusiasts who want to explore sensor-based navigation with Arduino.
Project Overview
In this project, you’ll build a robot that detects and follows a person. The robot uses:
- Arduino Uno for processing.
- L298N Motor Driver to control two motors for movement.
- Ultrasonic Sensor for distance measurement.
- Two IR Sensors to identify objects and follow direction.
- Servo Motor to rotate the ultrasonic and IR sensors 180 degrees.
How It Works
- Detection System: The ultrasonic sensor and IR modules are attached to a servo motor, which rotates to scan the environment within a 180-degree range. When an object (a person) is detected, the robot calculates the distance and direction.
- Movement Mechanism: When the sensors identify a person in a specific direction, the Arduino Uno processes the information, and the L298N motor driver activates the motors, moving the robot towards the detected object.
- Human Tracking: With continuous detection from the ultrasonic and IR sensors, the robot adjusts its direction in real-time to follow the moving target.
Components Needed
- Arduino Uno R3
- L298N Motor Driver
- Two DC Motors
- Ultrasonic Sensor (HC-SR04)
- Two IR Sensors
- One Servo Motor
- Wheels, chassis, and battery pack
Steps to Build the Robot
- Assemble the Chassis - Attach the motors, wheels, and other mechanical parts to create the robot's base.
- Attach Sensors and Servo - Fix the ultrasonic and IR sensors to the servo motor. Mount the servo on the front of the chassis so it can scan for objects.
- Wiring the Components - Connect the motors to the L298N motor driver, then connect the driver, servo, and sensors to the Arduino Uno. Power the setup using a battery pack.
- Programming the Arduino - Write code to control the servo motor, allowing it to rotate and scan for objects. Program the ultrasonic and IR sensors to detect proximity and adjust the motor driver’s output to follow the detected object.
- Testing and Debugging - Power up the robot and test the functionality. The robot should move toward any object detected in its path and follow it.
Applications and Benefits
This Arduino-based human-following robot is ideal for:
- Learning robotics fundamentals like sensor integration, motor control, and real-time navigation.
- Education as a hands-on STEM project for students.
- Practical demonstrations in exhibitions or tech fairs.
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Get started with this fun and educational robotics project and bring your Arduino skills to life!
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