#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>

// Data wire is conntec to the Arduino digital pin 4
#define ONE_WIRE_BUS 9

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature sensor 
DallasTemperature sensors(&oneWire);

// Set the LCD address to 0x27 for a 20 chars and 4 line display
LiquidCrystal_I2C lcd(0x27, 20, 4);

DeviceAddress sensor1 = { 0x28, 0xFF, 0x77, 0x62, 0x40, 0x17, 0x4, 0x31 };
DeviceAddress sensor2 = { 0x28, 0xFF, 0xB4, 0x6, 0x33, 0x17, 0x3, 0x4B };
DeviceAddress sensor3= { 0x28, 0xFF, 0xA0, 0x11, 0x33, 0x17, 0x3, 0x96 };

int flow; //Water flow L/Min 
int flowsensor = 2; 
int flow_ser;
unsigned long currentTime;
unsigned long lastTime;
unsigned long pulse_freq;

const int buttonPin = 7; 
int buttonState = 0; 
float pressure;

 void pulse () // Interrupt function
{
   pulse_freq++;
}


void setup()
{
  pinMode(buttonPin, INPUT);
	// initialize the LCD
	lcd.init();

	// Turn on the blacklight and print a message.
	lcd.backlight();
  lcd.setCursor(0, 0);
	lcd.print("Flow Rate:");
  lcd.print(" L/M");
  lcd.setCursor(0, 1);
  lcd.print("Temp In  :    ");
  lcd.print((char)223); //simbol derajat 
  lcd.print("C");
  lcd.setCursor(0, 2);
  lcd.print("Temp Out :      ");
  lcd.print((char)223); //simbol derajat 
  lcd.print("C");
  lcd.setCursor(0, 3);
  lcd.print("Temp Prod:      ");
  lcd.print((char)223); //simbol derajat 
  lcd.print("C");
//======   setup program Flow sensor YF-S201 ========
   pinMode(flowsensor, INPUT);
   Serial.begin(9600);
   attachInterrupt(0, pulse, RISING); // Setup Interrupt
   currentTime = millis();
   lastTime = currentTime;
//====== inisialisasi ds8b20 =========
   sensors.begin();
}
        
void loop()
{
	// ====== Main Program Flow Sensor ============
  currentTime = millis();
   // Every second, calculate and print L/Min
   if(currentTime >= (lastTime + 1000))
   {
      lastTime = currentTime; 
      // Pulse frequency (Hz) = 7.5Q, Q is flow rate in L/min.
      flow = (pulse_freq / 7.5); 
      pulse_freq = 0; // Reset Counter
      //Serial.print(flow, DEC); 
      //Serial.println(" L/Min");
      lcd.setCursor(0, 0);
      lcd.print("Flow Rate:");
      lcd.setCursor(10, 0);
      lcd.print(flow, DEC);
      flow_ser=flow;
      if (flow < 10){
        lcd.setCursor(10, 0);
        lcd.print(flow,DEC);
        lcd.setCursor(11, 0);
        lcd.print("  ");
      }
      //lcd.print("L/M");

 //Main Program DS18b20 =========
 // Call sensors.requestTemperatures() to issue a global temperature and Requests to all devices on the bus
  sensors.requestTemperatures(); 
  lcd.setCursor(0, 1);
  lcd.print("Temp In  :");
  lcd.print(sensors.getTempC(sensor1));
  lcd.print((char)223); //simbol derajat 
  lcd.print("C");
  lcd.setCursor(0,2);
  lcd.print("Temp In  :");
  lcd.print(sensors.getTempC(sensor2));
  lcd.print((char)223); //simbol derajat 
  lcd.print("C");
  lcd.setCursor(0, 3);
  lcd.print("Temp In  :");
  lcd.print(sensors.getTempC(sensor3));
  lcd.print((char)223); //simbol derajat 
  lcd.print("C");
  
  //Serial.print((char)223);
  //lcd.print("C")

 
   
    Serial.print(flow, DEC);
    Serial.print('-');
    Serial.print(sensors.getTempC(sensor1)); 
    Serial.print('-');
    Serial.print(sensors.getTempC(sensor2)); 
    Serial.print('-');
    Serial.print(sensors.getTempC(sensor3)); 
    Serial.print('-');
    Serial.println();

       
   }
  
  
  
}