// Example testing sketch for various DHT humidity/temperature sensors
// Written by ladyada, public domain

// 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"

#define DHTPIN 2     // 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.

// !!!VIKTIG!!!
// VIKTIG!!! Vi har DHT11, Wokwi har DHT22!! Endre før du putter på en ekte arduino
// !!!VIKTIG!!!

// 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 3 (on the right) of the sensor to GROUND (if your sensor has 3 pins)
// Connect pin 4 (on the right) of the sensor to GROUND and leave the pin 3 EMPTY (if your sensor has 4 pins)
// 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);

  dht.begin();
}

int getTemp() {
  float t = dht.readTemperature();
  if (isnan(t)) {
    Serial.println("Failed to read from DHT!!");
    return 4004;
  }
  else {
    return t;
  }
}

float getAverageTemp(float temps[], int tempsLen) {
  float average = 0;
  for (int i=0;i<tempsLen;i++) {
    average += temps[i];
  }
  average = average / tempsLen;
  return average;
}

void loop() {
  static int errorVal = 4004;
  static int counter = 0;
  const int maxCount = 10;
  static float temps[maxCount] = {};
  float fromSensor = getTemp();

  if (fromSensor != errorVal) {
    temps[counter] = fromSensor;
    counter ++;
  }

  if (counter >= maxCount) {
    float averageTemp = getAverageTemp(temps, maxCount);
    Serial.println("");
    Serial.print("Average: ");
    Serial.println(averageTemp);
    counter = 0;
  }
  else {
    Serial.print(fromSensor);
    Serial.print(" <> ");
  }

  delay(1000);

  // // 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);

  // Serial.print(F("Humidity: "));
  // Serial.print(h);
  // Serial.print(F("%  Temperature: "));
  // Serial.print(t);
  // Serial.print(F("°C "));
  // Serial.print(f);
  // Serial.print(F("°F  Heat index: "));
  // Serial.print(hic);
  // Serial.print(F("°C "));
  // Serial.print(hif);
  // Serial.println(F("°F"));
}