#include <Wire.h>
#include <OneWire.h>
#include <DallasTemperature.h>
// Data wire is plugged into pin 10 on the Arduino
#define ONE_WIRE_BUS 10
#define TEMPERATURE_PRECISION 12
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress sensor0,sensor1;
int deviceCount =0;
char digitCharAAAA[10];
char digitCharBBBB[10];
float tempA=27.39;
float tempB=29.23;
float tempZ=20.01;
String testAA;
String nothing;            // This is important - the string precursor.
String testAAAA;          // File names need to be of sufficient complexity!
String testBBBB;
int stringLengthAA;
int numberId =101;
int dataPrecursor = 198;  // A randomish number below 254. Be careful it does not conflict with numberIds.
int n = 0;
int digitAAAA;

                    
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void setup() 
{
  pinMode(13,OUTPUT);
  digitalWrite(13, HIGH);   
  delay(1000);                       
  digitalWrite(13, LOW);    
  Wire.begin(); 
  Serial.begin(9600);
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  sensors.begin();
  // locate devices on the bus
//  Serial.print("Locating devices...");
//  Serial.print("Found ");
//  deviceCount = sensors.getDeviceCount(), DEC;
//  Serial.print(deviceCount);
//  Serial.println(" devices.");
  
  if (!sensors.getAddress(sensor0, 0)) Serial.println("Unable to find address for Device 0"); 
  if (!sensors.getAddress(sensor1, 1)) Serial.println("Unable to find address for Device 1"); 
  
  sensors.setResolution(sensor0, TEMPERATURE_PRECISION);
  sensors.setResolution(sensor1, TEMPERATURE_PRECISION);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void loop() 
  {
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
   Serial.println("");
   sensors.requestTemperatures();  
   Serial.print("tempA: ");
   tempA =sensors.getTempCByIndex(0); // Change the index value accordingly.
   Serial.println(tempA); 
  
  // sensors.requestTemperatures();  
   Serial.print("tempB: ");
   tempB =sensors.getTempCByIndex(1); // Change the index value accordingly.
   Serial.println(tempB); 
   Serial.println("");  
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////    
   digitalWrite(13, HIGH);
   delay(5000);
   digitalWrite(13, LOW);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
   Serial.println("Now we are doing a transmission ....... "); 
   Serial.println(""); 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
   Wire.beginTransmission(9); // transmit to device #9     // Make sure the order is the same in master and slave.
   delay(20);  
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
  // We're going to send two chunks of data, tempA and tempB. Each of them is less than 1,000 and has two digits after the 
  //decimal place.

   tempZ=tempA;
   numberId= 101;
   sendData();
  
   tempZ=tempB;
   numberId= 109;
   sendData();
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
   Wire.endTransmission();
   Serial.println("");
   Serial.println("Transmission ended ....... ");
   Serial.println("");
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
   delay(120000);
}
void sendData()
{
  //  We're going to turn testAAAA and testBBBB into shorter numbers to transmit:
  //  assume the number is less than 1,000 and we want to preserve the first two decimal places
    testAAAA = nothing + tempZ*100;
    stringLengthAA = testAAAA.length(); 
    testAAAA.remove((stringLengthAA-3),3); // Remove decimal place etc.
    Serial.print("testAAAA: ");Serial.println(testAAAA);
    Wire.write(dataPrecursor);                          // Must send this junk data precursor first!
    Wire.write(numberId);
    Serial.print("numberId is:   ");Serial.println(numberId);  
    Wire.write(stringLengthAA-3);
    n=stringLengthAA-4;
      while (n>-1)                                       // Send the data back to front.
      {
      digitCharAAAA[n-1] = testAAAA.charAt(n);
      n--;
      digitAAAA = (digitCharAAAA[n]+nothing).toInt();
      Serial.print("Digit to send:  "); Serial.println(digitAAAA); 
      delay(20); 
      Wire.write(int (digitAAAA));                       // Values must not be greater than 255 (1 byte)?
      }
}