Build a Contactless Automatic Door Opener Using Temperature Detection

About this project

The purpose of this project is to automatically open the door by detecting body temperature. In fact, this project is to prevent patients with new coronary pneumonia from entering their homes. To a certain extent, guarantee the safety of the living environment.

The following parts were used in this project:

Arduino UNO, https://amzn.to/3ihYFBl

2004 I2C LCD, https://amzn.to/3gTMZnW

GY-906-BCC IR Infrared Thermometry Module

Two Tower Pro MG90S Servos

Buzzer, https://amzn.to/2BeYzu3

HC-SR501 Human infrared sensor, https://amzn.to/3aJAOHX

Code: https://github.com/DKARDU/AutomaticDoor

Thanks for watching, Stay home and Be safe...Have a great day! #Arduino #Arduinoproject #Covid-19

Code

• autodoor.ino

autodoor.inoArduino

#include <LiquidCrystal_I2C.h>

#include <Servo.h>
#include <Wire.h>
#include <Adafruit_MLX90614.h>

Adafruit_MLX90614 mlx = Adafruit_MLX90614();
LiquidCrystal_I2C lcd(0x27,20,4);

Servo myservo1;  
Servo myservo2; 

#define red 13
#define haha 4
int pos1,pos2;

void setup() {
  Serial.begin(9600);
  pinMode(red,OUTPUT);
  pinMode(haha,INPUT);
  myservo1.attach(7);  
  myservo2.attach(8); 
  myservo1.write(90);
  myservo2.write(90);
  mlx.begin();  
 
  lcd.init();
  lcd.backlight();
 

}

void loop() {
  
        int montion = digitalRead(haha);
        
        if(montion == 1){
          
          Serial.print("made");
          Serial.print("\n");
          lcd.setCursor(0,0);
          lcd.print("ObjectTemp:");
          lcd.setCursor(13,3);
          lcd.print("-DKARDU");          

          kaiguan();
          }   
}
          
void kaiguan(){
  
   int temp_obj = mlx.readObjectTempC();
   Serial.print(temp_obj);
   Serial.print("\n");
          if(temp_obj < 31){
           lcd.setCursor(0,1);
           lcd.print(temp_obj);
           lcd.setCursor(0,2);
           lcd.print("Not detected,retest!");
              
          }if(temp_obj > 30 && temp_obj <38){
           
           lcd.setCursor(0,1);
           lcd.print(temp_obj);
           lcd.setCursor(0,2);
           lcd.print("body temperature ok "); 
           for(pos1 = 90; pos1 <= 180; pos1 += 1)
          {                                 
            myservo1.write(pos1);
            myservo2.write(180-pos1);         
            delay(15);
          }
            delay(5000);

           for(pos1 = 180; pos1>=90; pos1 -=1)
           {
            myservo1.write(pos1);
            myservo2.write(180-pos1);     
            delay(15);                     
           }

          } 
          if(temp_obj>37){
            digitalWrite(red,HIGH);
            lcd.setCursor(0,1);
            lcd.print(temp_obj);
            lcd.setCursor(0,2);
            lcd.print("     Keep out!       ");
            delay(500);
            
  }
  digitalWrite(red,LOW);
}            
               
         

 

   

Schematics