#include <LiquidCrystal_I2C.h>
#include <dht.h>

LiquidCrystal_I2C my_lcd(0x27, 20, 4);
dht my_temp_sensor;

int pin_dht22 = 5;
int pin_distance_triger = 2;
int pin_distance_echo = 3;
int pin_led_red = 7;
int pin_led_green = 8;

void setup() {
  my_lcd.init();
  my_lcd.backlight();

pinMode(pin_distance_triger, OUTPUT);
pinMode(pin_distance_echo, INPUT);

}

void loop() {

  //distance sensor start
  digitalWrite(pin_distance_triger, 1);
  delay(10);
  digitalWrite(pin_distance_triger, 0);

  int duration = pulseIn(pin_distance_echo, 1);
  int cm = duration / 58;

  my_lcd.setCursor(0,0);
  my_lcd.print("Range: ");
  my_lcd.print(cm);
  my_lcd.print(char(225));
  //distance sensor stop

  // temp amd humidity sensor
  my_temp_sensor.read22(pin_dht22);
  my_lcd.setCursor(0,1);
  my_lcd.print("Temp: ");
  my_lcd.print(my_temp_sensor.temperature, 1);
  my_lcd.print("C ");
  my_lcd.setCursor(0,2);
  my_lcd.print("Humidity: ");
  my_lcd.print(my_temp_sensor.humidity, 1);
  my_lcd.print("% ");
  if (my_temp_sensor.temperature >= 40){
    digitalWrite(pin_led_green, 0);
    digitalWrite(pin_led_red, 1);
  }
    else{
      digitalWrite(pin_led_green, 1);
      digitalWrite(pin_led_red, 0);
      
    }
  
  // temp amd humidity sensor
}