Hindi:
Ultrasonic sensor से object distance measure करना।
English:
Measure distance using HC-SR04 sensor.
🔧 Components
Ultrasonic Sensor
Arduino
✅ CODE
int trig = 13;
int echo = 12;
int duration, distance;
void setup() {
Serial.begin(9600);
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
}
void loop() {
digitalWrite(trig, LOW);
delayMicroseconds(2);
digitalWrite(trig, HIGH);
delayMicroseconds(10);
digitalWrite(trig, LOW);
duration = pulseIn(echo, HIGH);
distance = duration * 0.034 / 2;
Serial.print("Distance: ");
Serial.println(distance);
}