#include <Arduino.h>

/*LCD Tanımlamaları*/
#include <Wire.h> 
#include <LiquidCrystalTr_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);


/*Buton Tanımlamaları*/
#define BUTTON_1 4
#define BUTTON_2 5
#define BUTTON_3 6
#define BUTTON_4 7
#define BUTTON_5 8


/*Meteoroloji Sensörü Tanımlamaları*/
#include <BMx280I2C.h>
#define I2C_ADDRESS 0x76
BMx280I2C bmx280(I2C_ADDRESS);

/*Analog sensörler*/

#include "DFRobot_EC10.h"
#include "DFRobot_PH.h"
#include <EEPROM.h>

#define PH_PIN A0
float     voltage,phValue,ecValue,temperature;
DFRobot_PH ph;
#define EC_PIN A1
DFRobot_EC10 ec;
/*Analog sensörler*/

/*DS18b20*/
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
/*DS18b20*/

void setup() {
/*LCD Kurulum*/  
lcd.begin();                  
lcd.backlight();
lcd.clear();

  ph.begin();
  ec.begin();

while (!Serial);
  Wire.begin();
  Serial.begin(115200);  

  
  if (!bmx280.begin())
  {
    Serial.println("begin() failed. check your BMx280 Interface and I2C Address.");
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.println("BMx280 failed");
    while (1);
  }
  if (bmx280.isBME280())
    Serial.println("sensor is a BME280");
  else
    Serial.println("sensor is a BMP280");
  bmx280.resetToDefaults();
  bmx280.writeOversamplingPressure(BMx280MI::OSRS_P_x16);
  bmx280.writeOversamplingTemperature(BMx280MI::OSRS_T_x16);
  if (bmx280.isBME280())
    bmx280.writeOversamplingHumidity(BMx280MI::OSRS_H_x16);


/*Buton Kurulum*/    
pinMode(BUTTON_1, INPUT_PULLUP);
pinMode(BUTTON_2, INPUT_PULLUP);
pinMode(BUTTON_3, INPUT_PULLUP);
pinMode(BUTTON_4, INPUT_PULLUP);


/*DS18b20 başlatma*/
  sensors.begin();
}

void loop() {

  lcd.clear();

  
  if (digitalRead(BUTTON_1) == LOW) {


/*Meteoroloji Ölçümü Yap*/
    MeteorolojiOku();
    delay(2000); 

/*Meteoroloji Ölçümü Yap*/

    
  }else  if (digitalRead(BUTTON_2) == LOW) {

    
/*PH Ölçümü Yap*/
    PHOku();
    delay(2000); 
/*Ph Ölçümü Yap*/
    
  }else   if (digitalRead(BUTTON_3) == LOW) {

    

    
/*PH Ölçümü Yap*/
     ECoku();
    delay(2000); 
/*Ph Ölçümü Yap*/
    
  }else  if (digitalRead(BUTTON_4) == LOW) {

    SicaklikOku();
    delay(2000); 

    
  }else{
    lcd.setCursor(0,0);
      lcd.print("ODTÜ Su Kalitesi");
          lcd.setCursor(2,1);
      lcd.print("Ölçüm Cihazı");
   delay(1000);
    }
}




float PHOku(){


        
       static unsigned long timepoint = millis();
       if(millis()-timepoint>1000U){                  //time interval: 1s
       timepoint = millis();
       //temperature = readTemperature();         // read your temperature sensor to execute temperature compensation
       voltage = analogRead(PH_PIN)/1024.0*5000;
       sensors.requestTemperatures(); float temperature = sensors.getTempCByIndex(0); // read the voltage
       phValue = ph.readPH(voltage,temperature);  // convert voltage to pH with temperature compensation
        lcd.clear();
        lcd.setCursor(6,0);
        lcd.print("pH:");
        Serial.print("pH:");
        Serial.println(phValue,2);
        lcd.setCursor(6,1);
        lcd.print(phValue,2);
        lcd.print("  ");
      
       
        
    }

    
      
        ph.calibration(voltage,temperature);
  
  
  }

float SicaklikOku(){

sensors.requestTemperatures();
 float temperatureC = sensors.getTempCByIndex(0); 
lcd.clear();
lcd.setCursor(3,0);
   lcd.print("Sicaklik ");
  lcd.setCursor(4,1);
  
  lcd.print(temperatureC);
  lcd.print("C");

  Serial.print("Sicaklik: ");
  Serial.print(temperatureC);
  Serial.println(" C");
  delay(2000); // Bir saniye bekle
  
  }





  float ECoku(){


     static unsigned long timepoint = millis();
    if(millis()-timepoint>1000U)  //time interval: 1s
    {
     timepoint = millis();
      voltage = analogRead(EC_PIN)/1024.0*5000;  // read the voltage
      Serial.print("voltage:");
      Serial.print(voltage);
      //temperature = readTemperature();  // read your temperature sensor to execute temperature compensation
     sensors.requestTemperatures();  float temperature = sensors.getTempCByIndex(0);
      ecValue =  ec.readEC(voltage,temperature);  // convert voltage to EC with temperature compensation
      Serial.print("  temperature:");
      Serial.print(temperature,1);
      Serial.print("^C  EC:");
      Serial.print(ecValue,1);
      Serial.println("ms/cm");

      lcd.clear();
      lcd.setCursor(2,0);
      lcd.print("İletkenlik");
      lcd.setCursor(4,1);
      lcd.print(ecValue,1);   lcd.print("ms/cm");
      

      
    }
    ec.calibration(voltage,temperature);  // calibration process by Serail CMD
    
    
    }





    float MeteorolojiOku(){

        if (!bmx280.measure())
  {
    Serial.println("could not start measurement, is a measurement already running?");
    return;
  }
  do
  {
    delay(100);
  } while (!bmx280.hasValue());

      
Serial.print("Basinc: "); Serial.println(bmx280.getPressure());
lcd.setCursor(0,1);
lcd.print("B:"); lcd.print((bmx280.getPressure()/100));lcd.print("mb");
lcd.setCursor(0,0);
Serial.print("T: "); Serial.println(bmx280.getTemperature());
lcd.print("T:"); lcd.print(bmx280.getTemperature());lcd.print("C");


if (bmx280.isBME280())
{
  lcd.setCursor(9,0);
Serial.print("Humidity: "); 
Serial.println(bmx280.getHumidity());
lcd.print("N:"); lcd.print("%");
lcd.println(bmx280.getHumidity());   
  }

  
      }