Published March 15, 2021 © GPL3+

Bluetooth controlled car with headlight

Make a bluetooth controlled car with headlight, so that you can also brighten darkness while runing your car!

BeginnerFull instructions provided1,409

Things used in this project

Hardware components

Arduino UNO

SparkFun Dual H-Bridge motor drivers L298

HC-05 Bluetooth Module

High Brightness LED, White

9V battery (generic)

9V Battery Clip

Switch

DC Motor, 12 V

Castor wheel

Jumper wires (generic)

Software apps and online services

Bluetooth car controller

Arduino IDE

Hand tools and fabrication machines

Tape, Double Sided

Story

Today, here amid corona lockdown, to reove your boredom I bring you here another antastic project - A car with headlight controlled with bluetooth!

Made all basic projects? common, get a step up and advance with this project!

Material required-

1)Arduino UNO (anbody knows you need a board first for project)

2)L298n - Motor driver for motors

3)6v gear motors

4)HC_05 bluetooth module

5)LEDs

6)Jumper wire

7)9v battery and battery connector

8)Castor wheel(it is a 2wd robot)

......And a few skill of Arduino!

Making the robot

1)First of all, you will need a chasis. You can buy it on amazon, Flipkart, etc.

I made myself a chasis with mechanics 4 kit

Made from kit(the chasis)

2)Stick, l298n, Arduino UNO, motors, LED, 9v battery n it with double sided tape.

3)Connect the circuit correctly with jumper wires and you are done!!

(Don't forget that while uploading code you should always remove Rx and Tx pin of Bluetooth module.)

Connection

L298n -

In1 = D9

In2 = D10

In3 = D11

In4 = D12

12v slot - Arduino UNO(vln)

(In real, we are using less than 12 v ie - 9v, don't get scared about bricking your arduino:.)

(I could have connected vln to 5v of L298n, but if you look at Arduino UNO's Specs - it is 6v to 20v and 5v is less than 6v. In some cases it works but in major cases it leads to restarting of Arduino when you give command)

Gnd - Arduino UNO(Gnd)

9v battery - L298n's 12 volt slot and Gnd slot

HC - 05

RX - To TX of Arduino

TX - to RX of arduino

Vcc - 5v

Gnd - GND

Motors - to respective slots for motors on L298n

Switch - Between Gnd of Battery and Gnd of L298n

The app

When you search playstore/appstore... for the app , its icon will be -

Opening screen of app -

How to connect your car -

1.Click on settings button(6th button in the topmost list)

2.Select - 'Connect to a car'.

3.Select your devce - HC - 05

You will be redirected to main screen . After that you will see the red icon still blinks for some times and after that it stops blinking and turns green.

Controls

The left , right , forward , backward buttons are the for buttons only which you see in the screen.

I am telling you about the headlight controls-:

This are the headlight controls.

Hope you like this project!

Code

Code

// Starting of Program
int m1a = 9;
int m1b = 10;
int m2a = 11;
int m2b = 12;
int b1 = 13;
int b2 = 8;
char val;

void setup() 
{  
pinMode(m1a, OUTPUT);  // Digital pin 10 set as output Pin
pinMode(m1b, OUTPUT);  // Digital pin 11 set as output Pin
pinMode(m2a, OUTPUT);  // Digital pin 12 set as output Pin
pinMode(m2b, OUTPUT);  // Digital pin 13 set as output Pin
pinMode(b1,OUTPUT);
pinMode(b2,OUTPUT);

Serial.begin(9600);
}

void loop()
{
  while (Serial.available() > 0)
  {
  val = Serial.read();
  Serial.println(val);
  }

  if( val == 'F') // Forward
    {
      digitalWrite(m1a, HIGH);
      digitalWrite(m1b, LOW);
      digitalWrite(m2a, HIGH);
      digitalWrite(m2b, LOW);  
    }
  else if(val == 'B') // Backward
    {
      digitalWrite(m1a, LOW);
      digitalWrite(m1b, HIGH);
      digitalWrite(m2a, LOW);
      digitalWrite(m2b, HIGH); 
    }
  
    else if(val == 'L') //Left
    {
    digitalWrite(m1a, LOW);
    digitalWrite(m1b, LOW);
    digitalWrite(m2a, HIGH);
    digitalWrite(m2b, LOW);
    }
    else if(val == 'R') //Right
    {
    digitalWrite(m1a, HIGH);
    digitalWrite(m1b, LOW);
    digitalWrite(m2a, LOW);
    digitalWrite(m2b, LOW); 
    }
    
  else if(val == 'S') //Stop
    {
    digitalWrite(m1a, LOW);
    digitalWrite(m1b, LOW);
    digitalWrite(m2a, LOW);
    digitalWrite(m2b, LOW); 
    }
  else if(val == 'I') //Forward Right
    {
    digitalWrite(m1a, HIGH);
    digitalWrite(m1b, LOW);
    digitalWrite(m2a, LOW);
    digitalWrite(m2b, LOW);
    }
  else if(val == 'J') //Backward Right
    {
    digitalWrite(m1a, LOW);
    digitalWrite(m1b, HIGH);
    digitalWrite(m2a, LOW);
    digitalWrite(m2b, LOW);
    }
   else if(val == 'G') //Forward Left
    {
    digitalWrite(m1a, LOW);
    digitalWrite(m1b, LOW);
    digitalWrite(m2a, HIGH);     digitalWrite(m2b, LOW);
    }
  else if(val == 'H') //Backward Left
    {
    digitalWrite(m1a, LOW);
    digitalWrite(m1b, LOW);
    digitalWrite(m2a, LOW);
    digitalWrite(m2b, HIGH); 
    }
     else if(val == 'W') //Backward Left
    {
    digitalWrite(b1,HIGH);
    digitalWrite(b2,HIGH);
     
    }
    else if(val == 'w') //Backward Left
    {
    digitalWrite(b1,LOW);
    digitalWrite(b2,LOW);
    }
    else if(val == 'X') //RIGHT LIGhT
    {
      digitalWrite(b1,HIGH);
    digitalWrite(b2,HIGH);
    delay(300); 
    digitalWrite(b1,LOW);
    digitalWrite(b2,LOW);
    delay(300);
    digitalWrite(b1,HIGH);
    digitalWrite(b2,HIGH);
    delay(300); 
    digitalWrite(b1,LOW);
    digitalWrite(b2,LOW);
    delay(300);
    digitalWrite(b1,HIGH);
    digitalWrite(b2,HIGH);
    delay(300); 
    digitalWrite(b1,LOW);
    digitalWrite(b2,LOW);
    delay(300);
    digitalWrite(b1,HIGH);
    digitalWrite(b2,HIGH);
    delay(300); 
    digitalWrite(b1,LOW);
    digitalWrite(b2,LOW);
    
    
    
  
    
    
}}

Bluetooth controlled car with headlight

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Material required-

Making the robot

Connection

The app

Controls

Schematics

Circuit diagram

Code

Code

Credits

guptaaryan1010

Comments

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Bluetooth controlled car with headlight

Bluetooth controlled car with headlight

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Material required-

Making the robot

Connection

The app

Controls

Schematics

Circuit diagram

Code

Code

Credits

guptaaryan1010

Comments

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