FOR THE BLIND PEOPLE HOW TO DOTHE CAR

Diagram 




Code


void setup()
{
pinMode(12,OUTPUT);//Trigger
pinMode(13,INPUT);//EchoA
pinMode(6,OUTPUT);//Buzzer


}


void loop()


{


long duration, distance;


digitalWrite(12,LOW);
delayMicroseconds(2);
digitalWrite(12,HIGH);
delayMicroseconds(10);
digitalWrite(12,LOW);
duration=pulseIn(13,HIGH);
distance=(duration/2)/29.1;
if (distance < 70)     // This is where checking the distance you can change the value


{
 // When the the distance below 100cm
digitalWrite(6,HIGH);


} else


{


// when greater than 100cm
digitalWrite(6,LOW);


} delay(500);


}






HOW TO DO HC-05 BLUETOOTH CAR 


HOW TO DO ULTRASONIC SENSOR CAR 




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