Hand Gesture Controlled Robotic Wheelchair Science Project

Arduino Hand Gesture Control 4WD Robotic Wheelchair Science Project

Explore the future of assistive technology with the Hand Gesture Controlled Robotic Wheelchair, a complete science project kit from Bigyan Project (বিজ্ঞান প্রজেক্ট). This innovative project is designed for students, hobbyists, and STEM enthusiasts eager to dive into the world of robotics, electronics, and programming. Instead of complex joysticks, this robotic wheelchair prototype is intuitively controlled by the simple tilt of your hand. At its core is the GY-521 MPU-6050 gyroscope and accelerometer, which precisely detects your hand's motion. This data is processed by the powerful Arduino Uno microcontroller, which then instructs the L298N Motor Driver to manage the four 100 RPM TT gear motors. This 4WD platform provides robust and agile movement, making it a perfect demonstration for any science fair. This kit provides all the essential components to build a functional model, offering an unparalleled hands-on learning experience in building a motion-controlled robot.

Product Specifications

Features

• Intuitive Gesture Control: Uses the MPU-6050 sensor to control the robot's movement (forward, backward, left, right) by tilting your hand.
• Powerful 4WD System: Equipped with four 100 RPM TT gear motors and an L298N driver for stable and powerful operation.
• Arduino-Based: Built around the popular Arduino Uno R3, making it easy to program, modify, and expand.
• Complete Project Kit: Includes all necessary electronic components, chassis, wheels, and power supply items for a full build.
• Durable PVC Chassis: The 5MM PVC chassis provides a sturdy and lightweight base for all components.
• Educational STEM Tool: An excellent hands-on project for learning about sensors, microcontrollers, motor control, and C++ programming.

Applications / Use Cases

• Ideal for school and college science fair projects.
• A perfect learning kit for robotics and Arduino beginners.
• Prototype for developing real-world assistive devices for disabled people.
• A hands-on tool for STEM education workshops and camps.
• A base platform for building more advanced sensor-based robots.

User Guide / How to Use

Building this gyro-controlled robot involves assembly and programming. First, assemble the 4-wheel chassis by mounting the four TT motors and attaching the 65mm wheels. Secure the Arduino Uno, L298N Motor Driver, and 18650 battery holder onto the chassis. Wire the components: Connect the MPU-6050 sensor (attached to your hand or a glove) to the Arduino's I2C pins (SDA, SCL). Connect the Arduino's digital output pins to the L298N's input pins (IN1, IN2, IN3, IN4). Then, connect the L298N's output pins to the four motors. Finally, connect the battery holder to the L298N and Arduino via the rocker switch. You will need to upload the Arduino code (using the Arduino IDE) that reads the MPU-6050's accelerometer/gyroscope data and translates it into motor commands for the L298N to achieve the desired motion.

Frequently Asked Questions (FAQs)

• Q: Is this project suitable for a beginner?
  A: Yes, it is a great project for intermediate beginners. While the assembly is straightforward, the coding part might require some basic understanding of the Arduino platform. Our store, Bigyan Project, provides resources to help.
• Q: Does this kit include the Arduino code?
  A: This is a hardware kit. The Arduino code is open-source and widely available online, allowing you to learn and customize it.
• Q: What is the purpose of the MPU-6050 sensor?
  A: The MPU-6050 is a 6-axis motion sensor. In this project, it is used as a gyro sensor to detect the tilt and orientation of your hand, which are then used as commands to move the wheelchair robot.
• Q: Can I control the speed of the motors?
  A: Yes, the L298N Motor Driver supports PWM (Pulse Width Modulation), which allows the Arduino to control the speed of the motors, not just their direction.

Challenges and Considerations

• Calibrating the MPU-6050 sensor is crucial for accurate and stable control.
• Writing the code to filter sensor noise (sensor fusion) can be challenging but is a great learning exercise.
• Proper wiring between the Arduino, L298N, and motors is essential to avoid short circuits.
• Ensuring the 18650 batteries are fully charged for optimal performance.

Compatibility

• Fully compatible with the standard Arduino IDE software for programming.
• The Arduino Uno can be interfaced with other sensors (like ultrasonic or IR sensors) for future upgrades.
• The L298N driver is compatible with a wide range of 5V-12V DC motors.

Future Enhancement Options

• Integrate an ultrasonic sensor for automatic obstacle avoidance.
• Add a Bluetooth module (like HC-05) to create a dual-control system with a smartphone app.
• Implement an IR sensor for line-following capabilities.
• Upgrade the power system for longer runtime.
• Use voice commands via a voice recognition module to control the robot.

Benefits

• Hands-On Learning: Gain practical experience in electronics, robotics, and programming.
• Problem-Solving Skills: Develop critical thinking by troubleshooting assembly and coding challenges.
• Inspires Innovation: Serves as a foundation for creating more complex and socially beneficial projects.
• All-in-One Solution: Provides all the core components needed, saving you time and effort in sourcing parts.

Conclusion

This Hand Gesture Controlled Robotic Wheelchair Science Project is more than just a toy; it's a gateway to practical engineering. It perfectly blends mechanical assembly, electronic circuiting, and software programming into one exciting project. By building this robot, students not only create an impressive science fair exhibit but also gain invaluable skills that are highly sought after in modern technology. Get your complete kit today from Bigyan Project (বিজ্ঞান প্রজেক্ট) and start building the future of intuitive robotics.

Keywords

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