#include "DHT.h"
#define DHTPIN 10     // what digital pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
#include <Wire.h>
#include <BH1750.h>
#include <OneWire.h>

BH1750 lightMeter;
int sensor = A0; //Sensor pin
OneWire  ds(2);  // on pin 10 (a 4.7K resistor is necessary)
const int analogInPin = A2;
const int analogOutPin = 9;

int sensorValue = 0;
int outputValue = 0;
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
  lightMeter.begin();
  pinMode(sensor,INPUT);
}

void loop() {
  float h = dht.readHumidity();
  float k = dht.readTemperature();
   uint16_t lux = lightMeter.readLightLevel();
   int x = analogRead(sensor);
    sensorValue = analogRead(analogInPin);
  outputValue = map(sensorValue, 0, 1023, 0, 14);
  analogWrite(analogOutPin, outputValue);
  if (isnan(h) || isnan(k)) {
    return; }
byte i;
  byte present = 0;
  byte type_s;
  byte data[12];
  byte addr[8];
  float celsius, fahrenheit;

  if ( !ds.search(addr)) {
    ds.reset_search();
    delay(250);
    return;}

  if (OneWire::crc8(addr, 7) != addr[7]) {
      return;}
  ds.reset();
  ds.select(addr);
  ds.write(0x44, 1);        // start conversion, with parasite power on at the end

  delay(1000);     // maybe 750ms is enough, maybe not
  // we might do a ds.depower() here, but the reset will take care of it.

  present = ds.reset();
  ds.select(addr);
  ds.write(0xBE);         // Read Scratchpad


  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = ds.read(); }
  int16_t raw = (data[1] << 8) | data[0];
  if (type_s) {
    raw = raw << 3; // 9 bit resolution default
    if (data[7] == 0x10) {
      // "count remain" gives full 12 bit resolution
      raw = (raw & 0xFFF0) + 12 - data[6];
    }
  } else {
    byte cfg = (data[4] & 0x60);
    // at lower res, the low bits are undefined, so let's zero them
    if (cfg == 0x00) raw = raw & ~7;  // 9 bit resolution, 93.75 ms
    else if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 ms
    else if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms
    //// default is 12 bit resolution, 750 ms conversion time
  }
  celsius = (float)raw / 16.0;
  fahrenheit = celsius * 1.8 + 32.0;
  Serial.print(h);//vlaznost zraka
  Serial.print(" ");
  Serial.print(k);//temperatura zraka C
  Serial.print(" ");
  Serial.print(lux);//svjetlost
  Serial.print(" ");
  Serial.print(x);//vlaznost zemljista %
  Serial.print(" ");
  Serial.print(celsius);// temperatura zemljista
  Serial.print(" ");
  Serial.println(analogRead(2)*14.0/1024, 1);//PH vrijednost
}





// Humidity zrak , Temperature(C) zrak, svjetlost