tempondis.ino

#include <Servo.h>
#include <LiquidCrystal.h>
#include "DHT.h"
#define DHTPIN 2
int threshold;
int ac=3;
int curtain=5;
Servo myservo;
#define DHTTYPE DHT11 
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(8,9,4,5,6,7);   
DHT dht(DHTPIN, DHTTYPE);
void setup() {
  // set up the LCD's number of columns and rows:
  myservo.attach(curtain);
  myservo.write(90);
  Serial.begin(9600);
  dht.begin();
  lcd.begin(16, 2);
  pinMode(ac,INPUT);
  // Print a message to the LCD.
  lcd.print("Getting data...");
  delay(2000);
  
}

void loop() {
  lcd.clear();
  lcd.print("Loading.... ");
  delay(100);
  
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  int h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);
  lcd.setCursor(0, 0);
  /* if (isnan(h) || isnan(t) || isnan(f)) {
    lcd.clear();
    lcd.print("Failed!");
    return;
  }*/


  if(t>30)
  {
    onAc();
  }
  else
  {
    offAc();
  }
  lcd.print("Temp = ");
  lcd.print(t);
  lcd.print(" *C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity = ");
  lcd.print(h);
  lcd.print(" %");
  
  delay(2000);
  // print the number of seconds since reset:
 
}

void onAc()
{
  digitalWrite(ac,HIGH);
  delay(500);
  digitalWrite(ac,LOW);
  delay(500);
  digitalWrite(ac,HIGH);
  delay(500);
  digitalWrite(ac,LOW);
  delay(500);
  digitalWrite(ac,HIGH);
  delay(500);

}

void offAc()
{
  digitalWrite(ac,LOW);
  delay(500);
}