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Arduino Code.cpp
54 lines (46 loc) · 1016 Bytes
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Arduino Code.cpp
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//define Pins
#include <Servo.h>
Servo servo;
int trigPin = 9;
int echoPin = 8;
// defines variables
long duration;
int distance;
void setup()
{
servo.attach(7);
servo.write(0);
delay(2000);
// Sets the trigPin as an Output
pinMode(trigPin, OUTPUT);
// Sets the echoPin as an Input
pinMode(echoPin, INPUT);
// Starts the serial communication
Serial.begin(9600);
}
void loop()
{
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Calculating the distance
distance= duration*0.034/2;
// Prints the distance on the Serial Monitor
Serial.print("Distance: ");
Serial.println(distance);
if ( distance <= 50 ) // Change Distance according to Ultrasonic Sensor Placement
{
servo.write(0);
delay(3000);
}
else
{
servo.write(120);
}
}