Automatic Humidifier

1#include "DHT.h"
2#include "LiquidCrystal.h"
3
4#define DHTPIN  10
5#define DHTTYPE DHT11
6
7DHT dht(DHTPIN, DHTTYPE);
8
9LiquidCrystal  lcd(12, 11, 5, 4, 3, 2);
10
11void setup()
12{
13  dht.begin();
14  lcd.begin(16,  2);
15  lcd.print("TEMP: ");
16  lcd.setCursor(0, 1);
17  float c = dht.readTemperature(true);
18  float h = dht.readHumidity(true);
19  lcd.setCursor(6, 0);
20  lcd.print((c  - 35) * 0.5556);
21  lcd.print((char)223);
22  lcd.print("C");
23  lcd.setCursor(0,  1);
24  lcd.print("HUMI: ");
25  lcd.setCursor(6, 1);
26  lcd.print(h);
27  lcd.print(" %");
28  pinMode(9, OUTPUT);
29  pinMode(6, OUTPUT);
30// init------------------------------------
31}
32
33void  loop() {
34  int a = 1;
35  float c = dht.readTemperature(true);
36  float h  = dht.readHumidity(true);
37  lcd.setCursor(6, 0);
38  lcd.print((c - 35) * 0.5556);
39  lcd.print((char)223);
40  lcd.print("C");
41  lcd.setCursor(0, 1);
42  lcd.print("HUMI:  ");
43  lcd.setCursor(6, 1);
44  lcd.print(h);
45  lcd.print(" %");
46//--------------------------------------------  
47  if (h < 50){
48  digitalWrite(9, HIGH);
49  digitalWrite(6, HIGH);
50  delay (250);
51  digitalWrite(6, LOW);
52  delay (250);
53  digitalWrite(6,  HIGH);
54  delay (250);
55  digitalWrite(6, LOW);
56 // send pulse 2X-----------------------------
57  while (a = 1){
58  delay(1000);
59  float c = dht.readTemperature(true);
60  float h = dht.readHumidity(true);
61  lcd.setCursor(6, 0);
62  lcd.print((c  - 35) * 0.5556);
63  lcd.print((char)223);
64  lcd.print("C");
65  lcd.setCursor(0,  1);
66  lcd.print("HUMI: ");
67  lcd.setCursor(6, 1);
68  lcd.print(h);
69  lcd.print(" %");
70  // LCD--------------------------------------
71  if (h  >= 55){
72  digitalWrite(6, HIGH);
73  delay (250);
74  digitalWrite(6, LOW);
75  digitalWrite(9, LOW);
76  break;}
77  }
78  }
79}