Krish Chauhan • Posted by rohit270798

Published June 15, 2020

Contactless Door opening system

This project will prevent further spread of COVID-19 Virus. This is a contactless door opening or switch pressing system.

IntermediateFull instructions provided2,050

Things used in this project

Hardware components

Arduino UNO

Ultrasonic Sensor - HC-SR04 (Generic)

SG90 Micro-servo motor

Buzzer

Jumper wires (generic)

9V 1A Switching Wall Power Supply

Software apps and online services

Autodesk Tinkercad

Hand tools and fabrication machines

Storage Box, 1 Compartment

Story

https://drive.google.com/file/d/1G5LK4tLmDgeGSqF3DImGs7fqgG0H3EmK/view?usp=sharing

Hello friends, This is the first time I am posting a project on Arduino Project Hub.

My name is Krish Chauhan, I am 11 years old. I am student of MECHATRON ROBOTICS, New Delhi. I have completed a course on Arduino and Electronics in just 2 months. I have learned this new skill during this quarantine period. I have always been fascinated towards the field of electronics and automation. I have made a project using Arduino which will help people prevent the further spread of COVID-19 Virus. This project can be used to open door automatically from a distance of 1 metre. We can also use this project to turn ON or OFF the switches at our home and offices.

This project uses an ultrasonic sensor which can measure the distance between objects, we can use this functionality to rotate a servo motor to open a door or turn ON a switch. We can also use a DC Pump to take out sanitizer from a bottle. This project will only cost around 900 INR, but surely can save you and your family from this deadly virus.

I desire to contribute something big and useful to this world. I am still at a very early age of learning. Looking for more ideas from Arduino Project Hub.

Thanks Everyone !

Stay Safe and Happy.

Code

Untitled file

int cm;
int time;
int e;
#include<Servo.h>;
Servo krish;
void setup()
{
  pinMode(13, OUTPUT);
  pinMode(12, INPUT);
  krish.attach(10);
  Serial.begin(9600);
  pinMode(11, OUTPUT);
}
//this will help people to open doors without touch
// price 500 for the arduino uno r3
// price 300 for the servo motor
// price 200 for the ultrasonic sensor
// price 121 for the breadboard
// total 1121
void loop()
{
  long Distance;
  digitalWrite(13, LOW);
  delayMicroseconds(2);
  digitalWrite(13, HIGH);
  delayMicroseconds(5);
  digitalWrite(13, LOW);
  pinMode(12, INPUT);
  time = pulseIn(12, HIGH);
  cm = q (time);
    if(cm < 100)
    {
      while(e<1)
      {
    krish.write (90);
    analogWrite(11,255);
    delay(1000);
    krish.write (0);
    digitalWrite(11,LOW);
    delay(2000);
    e += 1 ;
      }
    }
      else
      {
        e = 0;
      } 
  Serial.println(cm);
  delay(10);
}
 long q (long w)
{
return w /2/29;
}

Credits

Krish Chauhan

Posted by

rohit270798

Contactless Door opening system

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

123_xb0WJuJl7l.JPG

Code

Untitled file

Credits

Comments

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Contactless Door opening system

Contactless Door opening system

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

123_xb0WJuJl7l.JPG

Code

Untitled file

Credits

Comments

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