// Example testing sketch for various DHT humidity/temperature sensors written by ladyada
// REQUIRES the following Arduino libraries:
// - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library
// - Adafruit Unified Sensor Lib: https://github.com/adafruit/Adafruit_Sensor

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

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);


#define DHTPIN 4     // Digital pin connected to the DHT sensor
// Feather HUZZAH ESP8266 note: use pins 3, 4, 5, 12, 13 or 14 --
// Pin 15 can work but DHT must be disconnected during program upload.

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT 11
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Connect pin 1 (on the left) of the sensor to +5V
// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
// to 3.3V instead of 5V!
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

// Initialize DHT sensor.
// Note that older versions of this library took an optional third parameter to
// tweak the timings for faster processors.  This parameter is no longer needed
// as the current DHT reading algorithm adjusts itself to work on faster procs.
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
   LCD.init();
  LCD.backlight();
   LCD.clear();
  LCD.setCursor(4, 0);
  LCD.println(F("Temperature TEST"));

  dht.begin();
}

void loop() {
   Serial.begin(115200);
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    LCD.clear();
    LCD.setCursor(1,0);
    LCD.println(F("Failed to read from DHT sensor!"));
    return;
  }

  // Compute heat index in Fahrenheit (the default)
  float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);
 LCD.clear();
  
 
  
  
  
  delay(1000);
  LCD.setCursor(1, 0);
  LCD.println(F("Humidity: "));
   delay(1000);
   LCD.setCursor(1, 0);
  LCD.println(h);
  delay(1000);
  LCD.setCursor(1, 0);
  LCD.println(F("%  Temperature: "));
  delay(1000);
  LCD.setCursor(1, 0);
  LCD.println(t);
  delay(1000);
   LCD.setCursor(1, 0);
  LCD.println(F("°C "));
  delay(1000);
  LCD.setCursor(1, 0);
  LCD.println(f);
  delay(1000);
  LCD.setCursor(1, 0);
  LCD.println(F("°F  Heat index: "));
  delay(1000);
  LCD.setCursor(1, 0);
   LCD.println(hic);
   delay(1000);
    LCD.setCursor(1, 0);
   LCD.println(F("°C "));
   delay(1000);
  LCD.setCursor(1, 0);
   LCD.println(hif);
   delay(1000);
  LCD.setCursor(1, 0);
   LCD.println(F("°F"));
   delay(1000);
}