Automatic Door + – DIYSTEMKIDS

OVERVIEW

In this project we will make Automatic Door using Arduino Uno, Ultrasonic Sensor and a Servo Motor, we will detect ultrasonic waves to detect if anyone is ahead and use the Servo Motor to open and shut the door.

You can follow this video and the instructions below to make this Amazing Automatic Door Project.

Video

Components Required

Here is a list of Components that we will need to make this Project.

Sr #	Item Name	Quantity
1	Arduino Uno	1
2	Breadboard	1
3	Male to Male Jumper Wire	7
4	Servo Motor	1
5	Ultrasonic Sensor	1

Wiring Diagram

Here is a Complete Wiring Diagram along with Instructions for this Project

Program / Code

Code is Explained in the Comments of the Code

automatic_door

1 file(s) 0.69 KB

Download

// Automatic Door by --- AceLabs ---

#include <Servo.h>   //servo library
 Servo servo;     
 int trigPin = 5;    
 int echoPin = 6;   
 int servoPin = 7;
 int led= 10;
 long duration, dist, average;   
 long aver[3];   //array for average


void setup() {       
    Serial.begin(9600);
    servo.attach(servoPin);  
    pinMode(trigPin, OUTPUT);  
    pinMode(echoPin, INPUT);  
    servo.write(0);         //close door on power on
    delay(100);
    servo.detach(); 
} 

void measure() {  
   digitalWrite(10,HIGH);
   digitalWrite(trigPin, LOW);
   delayMicroseconds(5);
   digitalWrite(trigPin, HIGH);
   delayMicroseconds(15);
   digitalWrite(trigPin, LOW);
   pinMode(echoPin, INPUT);

   duration = pulseIn(echoPin, HIGH);
   dist = (duration/2) / 29.1;    //obtain distance
}

void loop() { 
    for (int i=0;i<=2;i++) {   //average distance
    measure();               
    aver[i]=dist;            
    delay(10);              //delay between measurements
  } 

 dist=(aver[0]+aver[1]+aver[2])/3;    

if ( dist<20 ) {
                            //Change distance as per your need
   servo.attach(servoPin);
   delay(1);
   servo.write(0);  
   delay(3000);       
   servo.write(150);    
   delay(1000);
   servo.detach();      
}
Serial.print(dist);
}

Thank you so much for going through our tutorial, we hope it was easy to follow and you enjoyed it, please share your feedback and pictures of the project (if you have made it) in the comments below .!