Automatic hand sanitizer with temperature detection

1#include <Wire.h> 
2#include <LiquidCrystal_I2C.h>
3#include <Adafruit_MLX90614.h>
4#include  <Servo.h>
5
6Adafruit_MLX90614 mlx = Adafruit_MLX90614();
7LiquidCrystal_I2C  lcd(0x27,16,2);
8
9Servo myservo;
10Servo myservo2;
11
12unsigned long previousMillis  = 0;
13unsigned long elapsedMillis = 0;
14
15int pos ;
16int ledState = LOW;
17int  debounceTime = 100;
18
19void setup()
20{
21  mlx.begin();  
22  lcd.init();                      
23  lcd.backlight();
24  myservo.attach(4);
25  myservo2.attach(5);
26  pinMode(9, INPUT);
27
28  lcd.setCursor(1,0);
29  lcd.print("Hello Everyone");
30  lcd.setCursor(1,1);
31  lcd.print("Loading. . . . .");
32  delay(2000);
33  lcd.clear();
34  
35}
36
37
38void loop()
39{
40  Handsanit();
41}
42
43void  Handsanit(){
44  elapsedMillis = millis() - previousMillis;
45  if(digitalRead(9)  == LOW && elapsedMillis > debounceTime){
46    if(ledState == HIGH){
47      ledState  = LOW;
48      lcd.setCursor(1,0);
49  if(mlx.readObjectTempC()>37){
50    delay(100);
51    lcd.print("suhu anda tinggi!!");
52  }
53  lcd.print(" NonContact ");
54  lcd.setCursor(2,1);
55  lcd.print("Suhu: ");
56  lcd.print(mlx.readObjectTempC()+2.2);
57  lcd.print("C    ");
58  delay(500);
59      for (pos = 0; pos <= 180; pos  += 1) { // goes from 0 degrees to 180 degrees
60    // in steps of 1 degree
61    myservo.write(pos);              // tell servo to go to position in variable  'pos'                      // waits 15ms for the servo to reach the position
62    myservo2.write(pos);              // tell servo to go to position in variable  'pos'
63    delay(15);   
64    }
65    for (pos = 40; pos >= 0; pos -= 1) {  // goes from 180 degrees to 0 degrees
66    myservo.write(pos);              //  tell servo to go to position in variable 'pos'
67                           //  waits 15ms for the servo to reach the position
68    myservo2.write(pos);              //  tell servo to go to position in variable 'pos'
69    delay(15);
70    }
71    }else{
72      for ( ;pos <= 80; pos += 1) 
73  { 
74    myservo.write(pos); 
75    myservo2.write(pos);              // tell servo to go to position in variable 'pos'           
76    delay(5);                        
77   }
78    ledState = HIGH;
79    lcd.setCursor(1,0);
80  if(mlx.readObjectTempC()>37){
81    delay(1000);
82    lcd.print("Suhu Anda  Tinggi!!");
83  }
84  lcd.print(" NonContact ");
85  lcd.setCursor(2,1);
86  lcd.print("Suhu: ");
87  lcd.print(mlx.readObjectTempC()+2.2);
88  lcd.print("C    ");
89  delay(500);
90    }
91    previousMillis = millis();
92    }
93}<br>