Voice and Bluetooth Robot Car with Obstacle Sensor

Advanced Voice and Bluetooth Controlled Smart Robot Car with Obstacle Sensor

The Advanced Voice and Bluetooth Controlled Smart Robot Car with Obstacle Sensor is a fully functional educational robotics kit designed for students, hobbyists, and educators. Developed using an Arduino Uno R3 SMD board as its control unit, this robot car integrates voice command capabilities and Bluetooth wireless connectivity for real-time control via mobile apps. It also includes an obstacle detection system using the HC-SR04 ultrasonic sensor and a servo motor for directional scanning. This robot car is ideal for school science projects, college engineering demonstrations, and university-level robotics competitions.

Available exclusively at Bigyan Project, this smart robot car helps students in Bangladesh learn practical robotics, electronics, and programming. The car is built on a sturdy 5MM PVC plastic board frame and includes reliable components such as BO motors, L298N motor driver, and a rechargeable battery system with Type-C charging. Whether you are just starting out in robotics or looking to build a project that gets noticed at a science fair, this kit is a complete solution for hands-on learning and innovation.

Specifications

Features

• Dual control mode: Bluetooth app and voice command
• Automatic obstacle detection and avoidance
• Servo-based ultrasonic scanning for safer turns
• Rechargeable battery with Type-C mobile charger support
• Beginner-friendly yet advanced enough for university projects
• Compact and lightweight chassis with strong PVC body
• Customizable Arduino-based programming

Applications / Use Cases

• School science fair projects
• College engineering and robotics demonstrations
• University-level automation and AI projects
• STEM education and practical learning tools
• Robotics competitions and exhibitions

User Guide / How to Use

• Charge the 18650 batteries using the built-in Type-C charging port
• Insert the charged batteries into the 3-cell holder
• Turn on the switch to power the robot car
• Connect to the HC-06 Bluetooth module using a mobile phone
• Use the Bluetooth RC Controller app for manual control
• Use Arduino BlueControl app to send voice commands like “go forward,” “turn left,” etc.
• The ultrasonic sensor checks for obstacles; the car stops if an object is detected within 20 cm
• The servo rotates the ultrasonic sensor left and right to find a clear path

Frequently Asked Questions (FAQs)

• Does the robot car support iPhone? Currently, it works with Android devices that support Bluetooth communication
• Can I modify the code to change behavior? Yes, the Arduino code is fully customizable for learning and experimentation
• How long does the battery last? With 3 fully charged 18650 batteries, the car can operate for approximately 30–45 minutes depending on usage
• Do I need any programming knowledge? Basic Arduino knowledge helps but preloaded code is provided with the project from Bigyan Project

Challenges and Considerations

• The robot car is not waterproof and should not be used outdoors in rain
• Bluetooth range is limited to approximately 10 meters
• Voice recognition depends on phone mic sensitivity and quiet environment
• Ultrasonic sensor has a detection limit of 2cm to 400cm, optimal at 20cm

Compatibility

• Compatible with all Android devices supporting Bluetooth 2.0
• Arduino IDE for programming and uploading code
• Works with standard USB Type-C mobile chargers

Future Enhancement Options

• Add infrared sensors for line-following capability
• Upgrade to Wi-Fi module for internet-based control
• Install a camera module for live video feed and image recognition
• Integrate GPS module for navigation tracking
• Add OLED display for showing real-time data

Benefits

• Hands-on learning experience in robotics and electronics
• Encourages logical thinking and programming skills
• Reusable and upgradable design for future experiments
• Affordable solution for academic project requirements
• Available from trusted local shop Bigyan Project in Bangladesh

Conclusion

The Voice and Bluetooth Controlled Robot Car with Obstacle Sensor is a complete and highly functional robotics kit made for students who want to explore the field of automation and embedded systems. It provides an excellent balance of education and fun while using real-world technologies like Arduino, ultrasonic sensors, and servo motors. Whether you are preparing for a science exhibition or building your own intelligent robot, this kit from Bigyan Project will help you bring your ideas to life with confidence.