Selasa, 06 Juni 2017


 Kontrol Buka Tutup Pintu Otomatis berbasis Arduino



Listing program 

#include <Servo.h>

Servo myservo;  //creates a servo object
                         //a maximum of eight servo objects can be created

int pos = 0;        //variable to store servo position

//amount of time we give the sensor to calibrate(10-60 secs according to the datasheet)

int calibrationTime = 10;

//the time when the sensor outputs a low impulse
long unsigned int lowIn;       

//the amount of milliseconds the sensor has to be low
//before we assume all motion has stopped
long unsigned int pause = 5000;

boolean lockLow = true;
boolean takeLowTime;

int pirPin = 2;            //digital pin connected to the PIR's output
int pirPos = 3;           //connects to the PIR's 5V pin

void setup(){
  myservo.attach(13);    //attaches servo to pin 4
  Serial.begin(9600);    //begins serial communication
  pinMode(pirPin, INPUT);
  pinMode(pirPos, OUTPUT);
  digitalWrite(pirPos, LOW);

  //give the sensor time to calibrate
  Serial.println("calibrating sensor ");
  for(int i = 0; i < calibrationTime; i++){
    Serial.print(calibrationTime - i);
    Serial.print("-");
    delay(100);
  }
  Serial.println();
  Serial.println("done");

  //while making this Instructable, I had some issues with the PIR's output
  //going HIGH immediately after calibrating
  //this waits until the PIR's output is low before ending setup
  while (digitalRead(pirPin) == HIGH) {
    delay(500);
    Serial.print(".");    
  }
  Serial.print("SENSOR ACTIVE");
}

void loop(){
  if(digitalRead(pirPin) == HIGH){  //if the PIR output is HIGH, turn servo

      for(pos = 0; pos < 180; pos += 1)  //goes from 0 to 180 degrees
    {                                                 //in steps of one degree
      myservo.write(pos);                   //tells servo to go to position in variable "pos"
      delay(15);                                   //waits for the servo to reach the position
    }
    for(pos =180; pos>=0; pos-=1)    //goes from 180 to 0 degrees
    {                              
      myservo.write(pos);                  //to make the servo go faster, decrease the time in delays for
      delay(15);                                  //to make it go slower, increase the number.
    }
    if(lockLow){
      //makes sure we wait for a transition to LOW before further output is made
      lockLow = false;          
      Serial.println("---");
      Serial.print("motion detected at ");
      Serial.print(millis()/1000);
      Serial.println(" sec");
      delay(50);
    }       
    takeLowTime = true;
  }

  if(digitalRead(pirPin) == LOW){     

    if(takeLowTime){
      lowIn = millis();             //save the time of the transition from HIGH to LOW
      takeLowTime = false;    //make sure this is only done at the start of a LOW phase
    }
  
    //if the sensor is low for more than the given pause,
    //we can assume the motion has stopped
    if(!lockLow && millis() - lowIn > pause){
      //makes sure this block of code is only executed again after
      //a new motion sequence has been detected
      lockLow = true;                    
      Serial.print("motion ended at "); //output
      Serial.print((millis()- pause)/1000);
      Serial.println(" sec");
      delay(50);
     
    }
  }
}

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