Arduino RC Car

 Materials Required:

1. Arduino Uno

2. Motor

3. Bluetooth Sensor

4. 12V Battery

5. Motor Driver

6. Jumper Wire




First of all, make the connection as show in the figure on the top right. Then, download the Arduino IDE and upload the code as given below.


Link to download Arduino IDE: https://www.arduino.cc/en/software


Code for Arduino

// Starting of Program
int m1a = 9;
int m1b = 10;
int m2a = 11;
int m2b = 12;
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
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); 
    }
}


Then, install the Arduino Bluetooth RC Car App from Play Store and it operates.

Link to download Arduino Bluetooth RC Car App : https://play.google.com/store/apps/details?id=braulio.calle.bluetoothRCcontroller

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