PEMROGRAMAN SENSOR ULTRASONIC DENGAN ARDUINO

pada kesempatan yang lalu kita sudah belajar mengenai program-sensor-ultrasonic kali ini kita kembangkan dengan menggunakan relay supaya bisa diaplikasikan dengan kipas, lampu, dinamo, pompa air mini dll


langsung saja siapkan peralatan yang dibutuhkan untuk merangkai rangkaian tersebut

1 Buah Arduino Uno

1 Buah Bread Board

Kabel Jumper secukupnya

1 Buah HC-SR04 Ultrasonic



Rangkaian







Keterangan

1.  pin VCC HC-SR04 ke pin 5V Arduino

2. pin Trig HC-SR04 ke pin 11 Arduino

3. pin Echo HC-SR04 ke pin 10 Arduino

4. pin GND HC-SR04 ke pin GND Arduino

4   5. Pin VCC Relay ke pin 5V Arduino

     6. Pin IN Relay ke pin 6 Arduino

     7. Pin GND Relay ke Pin GND Arduino



Sketch Program
// defines pins numbers

const int trigPin = 11;

const int echoPin = 10;

const int relayPin = 6;


// defines variables

long duration;

int distance;

long distancemm;


void setup() {

  // put your setup code here, to run once:

pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output

pinMode(echoPin, INPUT); // Sets the echoPin as an Input

pinMode(relayPin, OUTPUT);// Control Pin

//Serial.begin(9600); // Starts the serial communication

}


void loop() {

  // put your main code here, to run repeatedly:

// 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;

distancemm = distance*10+30;


//Control

if (distancemm <= 120)

{

 for (int i=0; i <= 50; i++){

      digitalWrite(relayPin, HIGH);

      delay(10);

   }

  

}

else if (distancemm >= 121)

{

  digitalWrite(relayPin, LOW);

}

else

{

  //Safe! Continue usual tasks...

}


// Prints the distance on the Serial Monitor

//Serial.print("Distance: ");

//Serial.println(distance);

//Serial.print("Distance: ");

//Serial.print(distancemm);

//Serial.println("mm");

delay(250);

}