Clarinet Companion

1#include <DHT.h>
2#include <DHT_U.h>
3#include <LiquidCrystal.h> 
4#include  <Adafruit_Sensor.h>
5//libraries
6
7#define DHTPIN 11 
8
9#define DHTTYPE  DHT11   // DHT 11
10
11DHT dht = DHT(DHTPIN, DHTTYPE);
12
13// Creates an LCD  object. Parameters: (rs, enable, d4, d5, d6, d7)
14LiquidCrystal lcd(1, 0, 8, 5,  4, 3);
15
16const byte buttonPin = 2; 
17volatile byte state = LOW;
18int buttonState  = 0;
19volatile int i = 0;
20
21void setup()
22{
23  lcd.begin(16,2); //Set  up the LCD
24
25  dht.begin();
26  
27  pinMode(9, OUTPUT); //Piezo Speaker  GREY WIRE
28  
29  pinMode(2, INPUT);
30  attachInterrupt(digitalPinToInterrupt(2),  sound, RISING);
31  
32  pinMode(13, OUTPUT); //RED LED BROWN WIRE
33  pinMode(12,  OUTPUT); //GREEN LED BROWN WIRE
34}
35
36void loop()
37{
38  
39  float h  = dht.readHumidity();
40
41  lcd.setCursor(0,0);
42  lcd.print("Humidity Level:  ");
43  lcd.setCursor(5,2);
44  lcd.print(h); //humidity level variable 
45  lcd.print("%");
46  lcd.setCursor(0,1);
47  
48  if (h < 50){
49    digitalWrite(13,  HIGH); 
50    digitalWrite(12, LOW); 
51  }
52  else if (h < 80) {
53    digitalWrite(12,  HIGH);
54    digitalWrite(13, LOW);
55  }
56  else{
57    digitalWrite(13, HIGH);  
58    digitalWrite(12, LOW); 
59  }
60
61  delay(5000);
62
63}
64
65void  sound()
66{
67      tone(9, 440, 6000); //A440 Tone
68
69}
70