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Bluetooth-Controlled Arduino Car

An Arduino car controlled wirelessly over Bluetooth via a mobile app.

[Components used]

Arduino Uno

Main controller — reads Bluetooth commands and drives the motors.

HC-05 Bluetooth Module

Receives drive commands wirelessly from the mobile app.

L298N Motor Driver

Switches motor current beyond what Arduino's GPIO pins can supply.

DC Motors ×4

Drive the wheels, controlled independently for turning.

Battery Pack

Powers the motors and Arduino for untethered driving.

[Demo]
30–60S DEMO VIDEO
drop a file at assets/projects/bluetooth-car/demo.mp4
[Overview]

A compact Arduino-based robotic car controlled wirelessly through Bluetooth. The project combines an Arduino controller, Bluetooth communication, motor drivers, and DC motors to create a simple and responsive mobile robotics platform.

[Technologies used]
Arduino Bluetooth Motor Drivers Mobile App Control
[Challenge]

The main challenge was achieving reliable wireless control while ensuring the motors responded correctly to each command. Direction control, motor synchronization, and maintaining consistent movement required careful programming and motor-driver configuration.

[Solution]

The Arduino receives commands from a mobile device through a Bluetooth module and converts them into movement instructions. Motor-driver control logic manages the individual motors, allowing the car to move forward, backward, left, right, and stop based on the received commands.

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