#include <LiquidCrystal_I2C.h>
#include <DHT.h>

DHT dht(4, DHT22);
char sentence[100];
char correctFloat[10];
int redLedPin = 3;
int blueLedPin = 5;
int yellowLedPin = 6;
LiquidCrystal_I2C lcd (0x27, 16, 2);
int light = A0;
int sms = A1;

void setup() {
  pinMode(light, INPUT);
  Serial.begin(9600);
  dht.begin();
  lcd.init();
}

void loop() {
  int level = analogRead(light);
  if (level <= 700){
    digitalWrite(3, LOW);
  }
  else {
    digitalWrite(3, HIGH);
  }
  int sml = analogRead(sms);
  if (sml >= 1000){
    digitalWrite(6, HIGH);
  }
  else{
    digitalWrite(6, LOW);
  }
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  if (h >= 60){
    tone(2, 250, 250);
    digitalWrite(2, HIGH);
  }
  else {
    digitalWrite(2, LOW);
  }
  if (t >= 25){
    digitalWrite(5, HIGH);
  }
  else{
    digitalWrite(5, LOW);
  }
  lcd. setCursor(0, 0);
  lcd.print("Welcome to");
  lcd.setCursor(0, 1);
  lcd.print("Auto Greenhouse!");
  delay(3000);
  lcd.clear();

  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(t);
  lcd.print("C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(h);
  lcd.print("%");
  delay(3000);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Intensity: ");
  lcd.print(light);
  lcd.setCursor(0, 1);
  lcd.print("Moisture: ");
  lcd.print(sml);
  delay(3000);
  lcd.clear();
}