#include <Arduino.h>

/*
  DS18B20 Pinout (Left to Right, pins down, flat side toward you)
  - Left   = Ground
  - Center = Signal (Pin 2):  (with 3.3K to 4.7K resistor to +5 or 3.3 )
  - Right  = +5 or +3.3 V

/*-----( Import needed libraries )-----*/
// Get 1-wire Library here: http://www.pjrc.com/teensy/td_libs_OneWire.html
#include <OneWire.h>

//Get DallasTemperature Library here:  http://milesburton.com/Main_Page?title=Dallas_Temperature_Control_Library
#include <DallasTemperature.h>
#include <util/delay.h>
#include <avr/io.h>

/*-----( Declare Constants and Pin Numbers )-----*/

#define ONE_WIRE_BUS_PIN 0
#define F_CPU 8000000  // This is used by delay.h library


/*-----( Declare objects )-----*/
// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS_PIN);

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

/*-----( Declare Variables )-----*/
// Assign the addresses of your 1-Wire temp sensors.
// See the tutorial on how to obtain these addresses:
// http://www.hacktronics.com/Tutorials/arduino-1-wire-address-finder.html

DeviceAddress Probe01 = { 0x28, 0xFF, 0x57, 0xED, 0xB5, 0x16, 0x03, 0x75 };
DeviceAddress Probe02 = { 0x28, 0xFF, 0x4D, 0x93, 0xC1, 0x16, 0x04, 0xFB };


void setup()   /****** SETUP: RUNS ONCE ******/
{


    /*
    Control Register A for Timer/Counter-0 (Timer/Counter-0 is configured using two registers: A and B)
    TCCR0A is 8 bits: [COM0A1:COM0A0:COM0B1:COM0B0:unused:unused:WGM01:WGM00]
    2<<COM0A0: sets bits COM0A0 and COM0A1, which (in Fast PWM mode) clears OC0A on compare-match, and sets OC0A at BOTTOM
    2<<COM0B0: sets bits COM0B0 and COM0B1, which (in Fast PWM mode) clears OC0B on compare-match, and sets OC0B at BOTTOM
    3<<WGM00: sets bits WGM00 and WGM01, which (when combined with WGM02 from TCCR0B below) enables Fast PWM mode
    */
 //   TCCR0A = 2<<COM0A0 | 2<<COM0B0 | 3<<WGM00;

    /*
    Control Register B for Timer/Counter-0 (Timer/Counter-0 is configured using two registers: A and B)
    TCCR0B is 8 bits: [FOC0A:FOC0B:unused:unused:WGM02:CS02:CS01:CS00]
    0<<WGM02: bit WGM02 remains clear, which (when combined with WGM00 and WGM01 from TCCR0A above) enables Fast PWM mode
    1<<CS00: sets bits CS01 (leaving CS01 and CS02 clear), which tells Timer/Counter-0 to not use a prescalar
    */
//    TCCR0B = 0<<WGM02 | 1<<CS00;

    /*
    Control Register for Timer/Counter-1 (Timer/Counter-1 is configured with just one register: this one)
    TCCR1 is 8 bits: [CTC1:PWM1A:COM1A1:COM1A0:CS13:CS12:CS11:CS10]
    0<<PWM1A: bit PWM1A remains clear, which prevents Timer/Counter-1 from using pin OC1A (which is shared with OC0B)
    0<<COM1A0: bits COM1A0 and COM1A1 remain clear, which also prevents Timer/Counter-1 from using pin OC1A (see PWM1A above)
    1<<CS10: sets bit CS11 which tells Timer/Counter-1  to not use a prescalar
    */
//    TCCR1 = 0<<PWM1A | 0<<COM1A0 | 1<<CS10;

    /*
    General Control Register for Timer/Counter-1 (this is for Timer/Counter-1 and is a poorly named register)
    GTCCR is 8 bits: [TSM:PWM1B:COM1B1:COM1B0:FOC1B:FOC1A:PSR1:PSR0]
    1<<PWM1B: sets bit PWM1B which enables the use of OC1B (since we disabled using OC1A in TCCR1)
    2<<COM1B0: sets bit COM1B1 and leaves COM1B0 clear, which (when in PWM mode) clears OC1B on compare-match, and sets at BOTTOM
    */
//    GTCCR = 1<<PWM1B | 2<<COM1B0;


/////////////////////////////////////////////////////////////////////////////////////////
/*
  // start serial port to show results
 Serial.begin(9600);
 Serial.print("Initializing Temperature Control Library Version ");
 Serial.println(DALLASTEMPLIBVERSION);
*/
///////////////////////////////////////////////////////////////////////////////////////

  // Initialize the Temperature measurement library
  sensors.begin();

  // set the resolution to 10 bit (Can be 9 to 12 bits .. lower is faster)
  sensors.setResolution(Probe01, 10);
  sensors.setResolution(Probe02, 10);

//TCCR1B = TCCR1B & 0b11111000 | 0x05; //set divider for the 328
TCCR0B = TCCR0B & 0b11111000 | 0b001 ; // set to divide-by-1 prescale ATTiny

}//--(end setup )---

void loop()   /****** LOOP: RUNS CONSTANTLY ******/
{

// delay(5000); // This delay will no longer work with new clock settings
_delay_ms(30000); // So we use this one

////////////////////////////////////////////////////////////////////////////////////
/*
 Serial.println();
 Serial.print("Number of Devices found on bus = ");
 Serial.println(sensors.getDeviceCount());
 Serial.print("Getting temperatures... ");
  Serial.println();
*/
////////////////////////////////////////////////////////////////////////////////////
  // Command all devices on bus to read temperature
  sensors.requestTemperatures();

 //Serial.print("Probe 01 temperature is:   ");
 printTemperature(Probe01);
 //Serial.println();


}//--(end main loop )---


/*-----( Declare User-written Functions )-----*/
void printTemperature(DeviceAddress temps)
{

float tempOut = sensors.getTempC(Probe01);
float tempIn = sensors.getTempC(Probe02);
{

/*
   if (tempIn == -127.00)
   {
   Serial.print("Error getting temperature  ");
   }
   else
   {

   Serial.print("TI: ");
   Serial.print(tempIn);
   Serial.println();
   Serial.print("TO: ");
   Serial.print(tempOut);
   }

*/

if (tempIn > tempOut +1.5 && tempIn <= tempOut + 4)
{
  analogWrite(1, 155);  //Attiny85 pin 1 // 328 pin 10
  analogWrite (2, 255); //Attiny85 pin 3 // 328 pin 5 Green
  analogWrite (3, 0); //Attiny85 pin 3 // 328 pin 5 Red
  analogWrite (4, 0); //Attiny85 pin 3 // 328 pin 5 Yellow

}
else if (tempIn > tempOut + 4 && tempIn <= tempOut +6)
{
  analogWrite(1, 205); //Attiny85 pin 1 // 328 pin 10
  analogWrite(2, 255);  //Attiny85 pin 4 // 328 pin 6 Green
  analogWrite(4, 255);  //Attiny85 pin 3 // 328 pin 5 Yellow
  analogWrite (3, 0); //Attiny85 pin 3 // 328 pin 5 Red
 }

else if (tempIn > tempOut + 6)
{
  analogWrite(1, 255); //Attiny85 pin 1 // 328 pin 10
  analogWrite(2, 255);  //Attiny85 pin 4 // 328 pin 6 Green
  analogWrite(3, 255);  //Attiny85 pin 3 // 328 pin 5 Red
  analogWrite(4, 255);  //Attiny85 pin 2 // 328 pin ? Yellow
}

else
 {
  analogWrite (1, 0); //Attiny85 pin 1 // 328 pin 10
  analogWrite (2, 0); //Attiny85 pin 3 // 328 pin 5 Green
 }


}

}// End printTemperature
//*********( THE END )***********