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Bluetooth Car Project Guide

The document outlines a project to build a Bluetooth Controlled Car using Arduino UNO, detailing the required components and step-by-step assembly instructions. It includes code for controlling the car's movement via a smartphone app, with commands for forward, backward, left, right, and stop. The project aims to teach basic robotics, electronic connections, and Arduino programming skills.

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rakshitavlnaik
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172 views3 pages

Bluetooth Car Project Guide

The document outlines a project to build a Bluetooth Controlled Car using Arduino UNO, detailing the required components and step-by-step assembly instructions. It includes code for controlling the car's movement via a smartphone app, with commands for forward, backward, left, right, and stop. The project aims to teach basic robotics, electronic connections, and Arduino programming skills.

Uploaded by

rakshitavlnaik
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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BTDrive: Bluetooth Controlled Car using Arduino UNO

This project demonstrates how to build a Bluetooth Controlled Car using Arduino UNO.

The car is operated via a smartphone app that sends commands through Bluetooth to control the

movement of the car.

Components Required:
- 4 x DC gear motors

- 1 x 4 Wheel Chassis

- 1 x Arduino Uno

- 1 x L298N Motor Driver

- 1 x HC-05 Bluetooth module

- Jumper wires

- 1 x Double battery holder with switch

- 2 x Lithium-ion cells

- 1 x USB cable

- 1 x Smartphone

Step-by-Step Instructions:
1. Assemble the Chassis:

Mount motors, wheels, Arduino, and battery holder on the chassis.

2. Connect Motors to L298N:

- Left Motors OUT1 & OUT2

- Right Motors OUT3 & OUT4

3. Connect L298N to Arduino UNO:

- IN1 D8

- IN2 D9

- IN3 D10
- IN4 D11

- ENA/ENB 5V or PWM pins

- VCC Battery +ve

- GND Battery -ve and Arduino GND

4. Connect HC-05 Bluetooth Module:

- VCC 5V

- GND GND

- TXD RX (Pin 0)

- RXD TX (Pin 1) via voltage divider

5. Upload Code:

Upload Arduino sketch using Arduino IDE and USB cable.

6. Test Bluetooth App:

Connect to HC-05 using a smartphone Bluetooth app. Use commands:

F - Forward

B - Backward

L - Left

R - Right

S - Stop

Arduino Code:

char command;
void setup() {
Serial.begin(9600);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
}
void loop() {
if (Serial.available() > 0) {
command = Serial.read();
if (command == 'F') {
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(10, HIGH);
digitalWrite(11, LOW);
} else if (command == 'B') {
digitalWrite(8, LOW);
digitalWrite(9, HIGH);
digitalWrite(10, LOW);
digitalWrite(11, HIGH);
} else if (command == 'L') {
digitalWrite(8, LOW);
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, LOW);
} else if (command == 'R') {
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, HIGH);
} else if (command == 'S') {
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
}
}
}

Learning Outcomes:
- Assemble a four-wheel robot chassis.

- Make basic electronic and motor driver connections.

- Upload and debug Arduino programs.

- Use Bluetooth to wirelessly control a device.

- Develop foundational robotics and IoT skills.

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