The Bluetooth-Based Car is a wireless, Arduino-controlled robotic vehicle designed for hands-free operation. It uses a Bluetooth module to communicate with a smartphone app, allowing the user to control the car’s movement and speed remotely. Powered by DC motors and steered through a motor driver module, this car is ideal for educational, DIY, and robotics projects. Optional add-ons, such as LEDs or a camera, enhance its functionality for advanced users.
Specifications and Components
| Component | Description | Specifications |
| Microcontroller | Acts as the central processing unit to execute commands received via Bluetooth. | Model: Arduino Uno/Nano Voltage: 5V Digital Pins: 14 (6 PWM) Analog Pins: 6 |
| Bluetooth Module | Facilitates wireless communication between the car and a smartphone app. | Model: HC-05/HC-06 Range: ~10m Voltage: 3.3V logic, 5V power |
| Motor Driver Module | Controls speed and direction of DC motors based on microcontroller commands. | Model: L298N/L293D Voltage: 5-35V (L298N), 4.5-36V (L293D) Output: 2A/channel |
| DC Motors | Provide movement for the car by converting electrical energy into mechanical energy. | Voltage: 6-12V Speed: 150-300 RPM Torque: 2.5-5 kg/cm |
| Car Chassis | A sturdy base to mount motors, wheels, and other components. | Material: Plastic/metal/acrylic Dimensions: ~18x10x6 cm |
| Wheels | Enable smooth movement of the car. | Material: Plastic or rubber-coated Diameter: ~65mm |
| Power Supply | Provides energy for all components. | Options: 9V battery, 7.4V Li-ion pack, 4xAA battery Capacity: ~2000mAh |
| Jumper Wires | Connect all components securely. | Length: ~10-20 cm Type: Male-to-Male, Male-to-Female, Female-to-Female |
| Smartphone | Acts as a remote control via Bluetooth app. | Compatibility: Android/iOS App: Bluetooth RC Car or Bluetooth Terminal |
| Optional Add-ons | Enhance functionality and features of the car. | LEDs: 2V-3.3V, ~20mA Buzzer: 3V-5V, ~10mA Camera Module: ESP32-CAM (3.3V) |
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