Hi everyone,
I am vigneshraja. here i present the code for interfacing arduino uno with ultrasonic sensor like shown in above video.
The Code for view the value in serial monitor from ultrasonic sensor:
#define trigPin 8
#define echoPin 9
void setup() {
Serial.begin (9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}
void loop() {
long duration, distance;
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = duration /74 /2;
Serial.print(distance);
Serial.println(" inch");
delay(500);
}
Code for interface with buzzer and led to notify when the object near to the ultrasonic sensor as in the video:
#define trigPin 8
#define echoPin 9
#define led 13
#define buzzer 12
void setup() {
Serial.begin (9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
pinMode(buzzer, OUTPUT);
pinMode(led, OUTPUT);
}
void loop() {
long duration, distance;
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = duration /74 /2;
Serial.print(distance);
Serial.println(" inch");
if(distance <= 12)
{
digitalWrite(buzzer, HIGH);
digitalWrite(led, HIGH);
}else
{
digitalWrite(buzzer, LOW);
digitalWrite(led, LOW);
}
delay(500);
}
Thank you For Reading
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