This is a DIY Bluetooth-controlled car built using an Arduino Uno, HC-05 Bluetooth module, and L298N motor driver module. The car is wirelessly controlled via a smartphone Android app and is perfect for beginners in robotics and embedded systems.
- Wireless Bluetooth control using HC-05
- Motor control via L298N H-Bridge
- Forward, backward, left, right, stop, lights commands
- Compatible with Android/Iphone smartphone apps
- Modular and expandable for future upgrades
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-05 Bluetooth Module | 1 |
| L298N Motor Driver | 1 |
| DC Gear Motors | 4 |
| Car Chassis (4WD) | 1 |
| Wheels | 4 |
| Battery (12V) | 1 |
| Jumper Wires | - |
| Smartphone | 1 |
The Arduino sketch is located in the car_code/ folder:
- File:
Source Code.txt - File:
Source Code.inoIt records characters sent via Bluetooth and drives the motors accordingly.
Sample Commands:
F→ ForwardB→ BackwardL→ LeftR→ RightS→ StopY→ Front Led Ony→ Front Led OffZ→ Back Led Onz→ Back Led Off
The Car Currently Supports only Android Software
The APK File is located in the Application/ folder:
- APK :
BTCAR.apk
- Upload
Source Code.inoto the Arduino Uno using the Arduino IDE. - Power the car with a battery pack (avoid USB during motor operation).
- Pair HC-05 with your phone (
Default password: 1234or0000). - Open your Bluetooth controller app and connect.
You can upgrade this car with:
- Ultrasonic sensor for obstacle avoidance
- Line-following IR sensors
- Voice control via Android app
- IoT control using WiFi (ESP8266)
- Camera module for FPV
- GPS module for navigation
-
Aditya Sharma– GitHub Profile -
Feel free to fork or modify this project!