//Rahman Said
//SMKN 1 Mantewe
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTPIN 8
#define DHTTYPE DHT22
DHT dht (DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);

int PinRelay = 13;// Digital pin relay
int buttonPin = 2;// Digital pin where the button is connected.
bool buttonState = true;

void setup() {
pinMode(PinRelay, OUTPUT); //LED pin as an output.
pinMode(buttonPin, INPUT); // Button pin as an input.
Serial.begin(9600);
Serial.println("Sistem Monitoring Suhu");
lcd.begin(16, 2);
dht.begin();
}

//LOOP
void loop() {
// Read the stateof the button
buttonState = digitalRead(buttonPin);

// Check if the button is pressed
// if (buttonState == HIGH){
// digitalWrite(PinRelay, HIGH); //Turn LED on.
// } else {
// digitalWrite(PinRelay, LOW); //Turn LED off.
// }

// put your main code here, to run repeatedly:
float t = dht.readTemperature();
float h = dht.readHumidity();
delay(1000);
//Menampilkan di LCD
lcd.setCursor(0,0);
lcd.println("Suhu=");

lcd.print(t);
lcd.println(" C");
lcd.setCursor(0,1);
lcd.println("Lembab= ");

lcd.print(h);
lcd.println(" %");
//Menampilkan di serial monitor
Serial.println("Suhu= ");

Serial.print(t);
Serial.println(" C");
Serial.println("Kelembaban= ");

Serial.print(h);
Serial.println(" %");

if (t > 70.00 ){
  digitalWrite(PinRelay, LOW); //Turn LED on.
  Serial.println("lampu mati");
} else if (t > 30){
  digitalWrite(PinRelay, HIGH);
  delay(2000);
  digitalWrite(PinRelay, LOW);
  delay(2000);

} else {
  digitalWrite(PinRelay, HIGH); //Turn LED off.
  Serial.println("lampu hidup");
}

}