#include <LiquidCrystal_I2C.h> 
LiquidCrystal_I2C lcd(0x27, 20, 4);
#include <DHT.h>
#include <DHT_U.h>
#define dhtSensor 6
#define temp 9

DHT dhtS(dhtSensor, DHT22);

void setup() {
pinMode(temp, INPUT);
pinMode(dhtSensor, INPUT);

lcd.init();
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("Starting");
delay(400);
lcd.setCursor(0,0);
lcd.print("Booting:");
  for (int i = 0; i <= 100; i++){
    lcd.setCursor(8,0);
    if (i<100) lcd.print(" ");  //print a space if the percentage is < 100 
    if (i<10) lcd.print(" ");  //print a space if the percentage is < 10
    lcd.print(i);
    lcd.print("%");
    delay(5);  //change the delay to change how fast the boot up screen changes 
  }
lcd.setCursor(0,0);
lcd.print("Done....");
lcd.clear();
delay(100);
}

void displaySensor(float temp1, float temp2, float temp3, float temp4, float rh) {
  char buffer[6];
  // Print temp1
  lcd.setCursor(0, 0);
  lcd.printstr("T1:");
  lcd.setCursor(3, 0);
  dtostrf(temp1, 4, 1, buffer);
  lcd.print(buffer);
  lcd.setCursor(8, 0);
  lcd.print('C');

  // Print temp2
  lcd.setCursor(11, 0);
  lcd.printstr("T2:");
  dtostrf(temp2, 4, 1, buffer);
  lcd.print(buffer);
  lcd.setCursor(19, 0);
  lcd.print("C");

  // Print temp3
  lcd.setCursor(0, 1);
  lcd.printstr("T3:");
  lcd.setCursor(3, 1);
  dtostrf(temp3, 4, 1, buffer);
  lcd.print(buffer);
  lcd.setCursor(8, 1);
  lcd.print('C');

  // Print temp4
  lcd.setCursor(11, 1);
  lcd.printstr("T4:");
  dtostrf(temp4, 4, 1, buffer);
  lcd.print(buffer);
  lcd.setCursor(19, 1);
  lcd.print("C");

  // Print temp4
  lcd.setCursor(0, 2);
  lcd.printstr("RH:");
  lcd.setCursor(3, 2);
  dtostrf(rh, 4, 1, buffer);
  lcd.print(buffer);
}

void loop() {
  float temp1 = random(0, 3000) / 10.0;  // Random float between 0.0 and 29.9
  float temp2 = random(30, 10000) / 10.0; // Random float between 3.0 and 99.9
  displaySensor(temp1, temp2, dhtS.readTemperature(), analogRead(temp), analogRead(temp));
  delay(2000);
}