Human-Following Robot

Table of Contents

• Overview
• Features
• Hardware Components
• Software Requirements
• Wiring Diagram
• Installation
• Usage
• Code Explanation
• Troubleshooting
• Contributing
• License
• Acknowledgments

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Overview

The Human-Following Robot is an Arduino-based project designed to autonomously follow a human using a combination of ultrasonic sensors, servo motors, and DC motors. This robot can be used for various applications, including personal assistance, security, and interactive demonstrations.

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Features

• Autonomous Following: Utilizes ultrasonic sensors to maintain a set distance from the target.
• Servo-Controlled Scanning: A servo motor sweeps the ultrasonic sensor to detect the position of the target.
• Motor Control: Four DC motors provide smooth and controlled movement.
• Real-Time Feedback: Serial monitoring for distance and sensor status.

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Hardware Components

• Arduino Board (e.g., Arduino Uno)
• Ultrasonic Sensor (e.g., HC-SR04)
• Servo Motor (e.g., SG90)
• Adafruit Motor Shield (v2) or compatible
• DC Motors (4 units)
• Infrared Sensors or Line Sensors (for RIGHT and LEFT detection)
• Jumper Wires
• Power Supply (appropriate for motors and Arduino)
• Chassis (for mounting components)

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Software Requirements

• Arduino IDE (version 1.8.13 or later)
• Libraries:
  • NewPing
  • Servo
  • AFMotor (Adafruit Motor Shield library)

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Wiring Diagram

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Ensure all connections are secure and double-check pin assignments before powering the robot.

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Installation

1. Open the Project

• Launch the Arduino IDE.
• Open the .ino file from the cloned repository by navigating to File > Open and selecting the appropriate .ino file.

2. Install Required Libraries

Ensure the following libraries are installed:

• NewPing
• Servo
• Adafruit Motor Shield V2

To install these libraries:

• Go to Sketch > Include Library > Manage Libraries.
• In the Library Manager, search for each library by name and click Install.

3. Connect Hardware

• Assemble the robot chassis.
• Connect the ultrasonic sensor, servo motor, and DC motors to the Arduino and Motor Shield according to the wiring diagram provided in this repository.

4. Upload the Code

• In the Arduino IDE, select the correct Board and Port from the Tools menu.
  • For example, if you're using an Arduino Uno, go to Tools > Board > Arduino Uno.
  • Then select the correct Port (e.g., COM3 or similar, depending on your system).
• Once everything is connected, click the Upload button (right arrow icon) in the Arduino IDE to upload the code to the board.

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Usage

1. Power On

• Ensure the robot is connected to a stable power source.
• You can power it using batteries or a USB connection to the Arduino, depending on your setup.

2. Initialization

• Upon powering the robot, the servo motor will perform a sweep to calibrate the ultrasonic sensor.
• This helps the robot "scan" the surroundings and detect the initial position of the human target.

3. Operation

• The robot will autonomously start following the human target after calibration.
• It maintains an optimal distance using the ultrasonic sensor to avoid obstacles.

4. Monitoring

• Open the Serial Monitor in the Arduino IDE (press Ctrl + Shift + M or navigate to Tools > Serial Monitor).
• Set the baud rate to 9600 to view real-time data, including:
  • Distance measured by the ultrasonic sensor.
  • Status of the RIGHT and LEFT sensors.

You can use this information to debug and ensure the robot is following the target correctly.

Clone the Repository

git clone https://github.com/NandishKoppad09/human-following-robot.git