Overview
Things
Story

Step 1: Requirements
Step 2: Assemble the Chassis
Step 3: Download the Zip File
Step 4: Add the AF Motor Library
Step 5: Upload Program
Step 6: Circuit Connections
Step 7: Add Bluetooth Module
Step 8: Power the Arduino and Motors
Step 9: Connect the App
Step 10: All Done

Schematics
Code
Credits
Comments(7)

Team Vishal soni:

Vishalsoniindia

Published October 26, 2017

Mobile Controlled Bluetooth Car || Easy || Simple || HC-05

This the Bluetooth controlled car that used HC-05 Bluetooth module to communicate with mobile.

BeginnerFull instructions provided1 hour63,129

Things used in this project

Hardware components

Arduino UNO

Software apps and online services

Arduino IDE

Story

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This is the Bluetooth controlled car that used HC-05 Bluetooth module to communicate with mobile. We can control the car with mobile via Bluetooth. There is an app to control the motion of car.

Step 1: Requirements

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Arduino Uno
Motor shield
Battery for motor (above 4v and above 1amp)
Power bank of 5v to power the Arduino
HC-05 Bluetooth module
Robot chassis

Step 2: Assemble the Chassis

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Assemble the motor, wheels and chassis, as per the given instructions with chassis.

Step 3: Download the Zip File

Download the zip file
And extract it

https://github.com/vishalsoniindia/Mobile-Controlled-Bluetooth-Car-Easy-Simple-Hc-05-Motor-Shield/archive/master.zip

Download the code here

Step 4: Add the AF Motor Library

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Extract the zip file
Open extracted folder
Copy the AF motor folder
Now go to document section
Open Arduino folder
Now open library folder
Paste the AFMotor folder
Then close it

Step 5: Upload Program

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Connect Arduino with laptops or PC
Open extracted folder again
Open the car program
Go to the tools in Arduino software
Make sure board are Arduino Uno and port where Arduino connected
Upload the program

Step 6: Circuit Connections

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Solder two wires at Arduino's 0 and 1 pins: RX and TX.
Fix the motor shield on the top of Arduino
Connect all motors on motor shield as given in the schematic.
Left motor is connected to M3 and M4
Right motor is connected to M1 and M2
If any motors are rotating in the reverse direction, then reverse the connection of motor.

Step 7: Add Bluetooth Module

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Take Bluetooth module
Connect two female to female wires at +5v and GND
Connect Bluetooth's +5v and GND with servo's + and - on motor shield as shown in picture.
Connect RX of Arduino to TX of Bluetooth module
Connect TX of Arduino to RX of Bluetooth module

Step 8: Power the Arduino and Motors

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Connect the power bank to Arduino via USB cable
Connect the battery to motor shield

Step 9: Connect the App

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Turn on Bluetooth
Search for new device
Click on HC-05
Enter the password 1234
Once it's paired, open Play Store
Search for Arduino Bluetooth RC car
Download the app and open
Click on setting icon
Click on connect to car
Click on HC-05
When the red light turns green it means it's connected
All done

Step 10: All Done

Now all done move left, right and up, down arrow in app to operate robot.

Code

Mobile Controlled car

#include <AFMotor.h>

AF_DCMotor motor1(1);
AF_DCMotor motor2(2);
AF_DCMotor motor3(3);
AF_DCMotor motor4(4);

char bt='S';
void setup()
{
  Serial.begin(38400);
 
  motor1.setSpeed(255);
  motor2.setSpeed(255);
  motor3.setSpeed(255);
  motor4.setSpeed(255);
  Stop();
}


void loop() {
 
bt=Serial.read();

if(bt=='F')
{
 forward(); 
}

if(bt=='B')
{
 backward(); 
}

if(bt=='L')
{
 left(); 
}

if(bt=='R')
{
 right(); 
}

if(bt=='S')
{
 Stop(); 
}

}
void forward()
{
     motor1.run(FORWARD);
  motor2.run(FORWARD);
  motor3.run(FORWARD);
  motor4.run(FORWARD);
}

void backward()
{
     motor1.run(BACKWARD);
  motor2.run(BACKWARD);
  motor3.run(BACKWARD);
  motor4.run(BACKWARD);
}
void left()
{
  motor1.run(FORWARD);
  motor2.run(FORWARD);
  motor3.run(BACKWARD);
  motor4.run(BACKWARD);
}
void right()
{
  motor1.run(BACKWARD);
  motor2.run(BACKWARD);
  motor3.run(FORWARD);
  motor4.run(FORWARD);
}
void Stop()
{
  motor1.run(RELEASE);
  motor2.run(RELEASE);
  motor3.run(RELEASE);
  motor4.run(RELEASE);
}

Credits

Vishalsoniindia

31 projects • 41 followers

I am an electrical engineer⚡🔌 Checkout my Youtube channel

Contact

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Mobile Controlled Bluetooth Car || Easy || Simple || HC-05