Bluetooth based car

hey everyone. did you wonder any time where you can control you car with phone. lets make your wonder true using Arduino.

connection of Arduino

1) tx of Bluetooth to rx of Arduino

2) rx of Arduino to tx of Bluetooth

3) GND of Bluetooth to GND of Arduino

4) VCC of Bluetooth to 5V of Arduino

5) a pin of DC motor to digital pin 13 of Arduino

6) another pin of DC motor to GND of Arduino

7)take another DC motor

8) a pin of DC motor to digital pin 11 of Arduino

9) another pin of DC motor to GND of Arduino

Precautions:

1) make sure motor 1 always rotates clockwise and motor to rotates anti clockwise if it doesn't happen exchange the connections.

2) front motor should be left side

3) back motor should be right side

here is the code

void setup()

{

Serial.begin(9600);

pinMode(13, OUTPUT);//dc motor

pinMode(11,OUTPUT);}

void loop()

{

if(Serial.available() > 0)

{

char data= Serial.read();

Serial.print(data);

Serial.println(data);

if(data == 'a')

{digitalWrite(13, HIGH);

digitalWrite(11, LOW) ;

}

else if(data == 'b')

{digitalWrite(13, LOW);

digitalWrite(11, HIGH) ;

}

else if(data=='c')

{digitalWrite(13, HIGH) ;

digitalWrite(11, HIGH) ;}

else{

digitalWrite(13, LOW) ;

digitalWrite(11, LOW) ;

}

}

}

how to operate it:

write a when you want car to go front

write b when you want car to go back

write c when you want car turn

physics behind it:

you might be wondering how the car rotates. I will explain it how with example

example:

when you are removing a bottle cap you will use two fingers thumb and index.

with the index finger you move it front and with thumb you move it backside.

the index will be placed left and thumb will be placed right the bottle rotates.

here when you press c the both motor rotates as they are placed left and right.

the app to control it

https://play.google.com/store/apps/details?id=com.tools.ArduinoBluetooth

did you like the project?

do you want code for your project

contact me here

https://www.freelancer.in/hireme/pranavmadhavaram