Fwd: arduino ultrasonic ప్రోగ్రాం

---------- Forwarded message ---------
From: pingili vikram kumar <vikramkumar.volunteer@gmail.com>
Date: Sun, Jul 31, 2022, 15:04
Subject: arduino ultrasonic ప్రోగ్రాం
To: sudheer nuni <sudheer.nuni@gmail.com>

//https://www.tutorialspoint.com/arduino/arduino_ultrasonic_sensor.htm 

// modified by vikram bhayya

const int pingPin = 7; // Trigger Pin of Ultrasonic Sensor

const int echoPin = 6; // Echo Pin of Ultrasonic Sensor

void setup() {

   Serial.begin(9600); // Starting Serial Terminal

    pinMode(7, OUTPUT);

     pinMode(6, INPUT);

      pinMode(13, OUTPUT);

}

void loop() {

   long duration,  cm;  //inches,

  

   digitalWrite(7, LOW);

   delayMicroseconds(2);

   digitalWrite(7, HIGH);

   delayMicroseconds(10);

   digitalWrite(7, LOW);

  

   duration = pulseIn(6, HIGH);

   //inches = microsecondsToInches(duration);

   cm = microsecondsToCentimeters(duration);

   if (cm<15)

    digitalWrite(13,HIGH);

    else

    digitalWrite(13,LOW);

   

   /*Serial.print(inches);

   Serial.print("in, ");*/

   Serial.print(cm);

   Serial.println("cm");

  // Serial.println();

   delay(1000);

}

/*long microsecondsToInches(long microseconds) {

   return microseconds / 74 / 2;

}*/

long microsecondsToCentimeters(long p) {

   return p / 29 / 2;

}