#include <DHT.h>
#define DHTPIN 4
#define led1 8
#define led2 9
#define led3 10
#define led4 11
#define led5 12
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup()
{
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
pinMode(led5, OUTPUT);
lcd.init();
lcd.backlight();
lcd.print("Rachaporn");
lcd.setCursor(0, 1);
lcd.print("t: ");
lcd.setCursor(11, 1);
lcd.print("h: ");
Serial.begin(9600);
Serial.println("DHTxx test!");
dht.begin();
}
void loop()
{
delay(3000);
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t))
{
Serial.println("Failed to read from DHT sensor!");
return;
}
Serial.print("Humidity: ");
Serial.print(h,0);
Serial.print("%\t ");
lcd.setCursor(13, 1);
lcd.print(h, 0);
lcd.print("%\t ");
Serial.print(" Temperature: ");
Serial.print(t,1);
Serial.println(" C ");
lcd.setCursor(2, 1);
lcd.print(t, 1);
lcd.print((char)223);
lcd.print("c ");
if ( t > 5.9 && t <10.9 )
{
digitalWrite(led1, 1);
digitalWrite(led2, 0);
digitalWrite(led3, 0);
digitalWrite(led4, 0);
digitalWrite(led5, 0);
}
else if( t > 11.9 && t <25.9 )
{
digitalWrite(led1, 0);
digitalWrite(led2, 1);
digitalWrite(led3, 0);
digitalWrite(led4, 0);
digitalWrite(led5, 0);
}
else if( t > 26.9 && t <35.9 )
{
digitalWrite(led1, 0);
digitalWrite(led2, 0);
digitalWrite(led3, 1);
digitalWrite(led4, 0);
digitalWrite(led5, 0);
}
else if( t > 36.9 && t <40.9 )
{
digitalWrite(led1, 0);
digitalWrite(led2, 0);
digitalWrite(led3, 0);
digitalWrite(led4, 1);
digitalWrite(led5, 0);
}
else if( t > 50.9 && t <60.9 )
{
digitalWrite(led1, 0);
digitalWrite(led2, 0);
digitalWrite(led3, 0);
digitalWrite(led4, 0);
digitalWrite(led5, 1);
}
}