/*
 * Robojax Arduino Step-by-Step Course
 * Part 3: Temperature Sensors
 * Lesson 32: MCP9808 Custom function
 
 * Updated by Ahmad Shamshiri for Robojax. Robojax.com
 * February 23, 2019 in Ajax, Ontario, Canada
 
  Please watch video instructions here: https://youtu.be/fHBHzxK9mFk
 This code is available at: http://robojax.com/course1/?vid=lecture32
 
 With over 100 lectures free on YouTube. Watch it here: http://robojax.com/L/?id=338
 Get the code for the course: http://robojax.com/L/?id=339  
 If you found this tutorial helpful, please support me so I can continue creating.
 Make a donation using PayPal: http://robojax.com/L/?id=64

 * Code is available at: http://robojax.com/learn/arduino

 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>. 
    
	
 */ 

/**************************************************************************/
/*!
 This is a demo for the Adafruit MCP9808 breakout.
 ----> http://www.adafruit.com/products/1782
 Adafruit invests time and resources providing this open source code,
 please support Adafruit and open-source hardware by purchasing
 products from Adafruit!
*/
/**************************************************************************/

#include <Wire.h>
#include "Adafruit_MCP9808.h"

// Create the MCP9808 temperature sensor object
Adafruit_MCP9808 tempsensor = Adafruit_MCP9808();

void setup() {
	//YouTube Watch it here http://robojax.com/L/?id=338
  Serial.begin(9600);
  Serial.println("MCP9808 demo by Robojax");
  
  // Make sure the sensor is found, you can also pass in a different i2c
  // address with tempsensor.begin(0x19) for example
  if (!tempsensor.begin()) {
    Serial.println("Couldn't find MCP9808!");
    while (1);
  }
}

void loop() {
  //Serial.println("wake up MCP9808.... "); // wake up MCP9808 - power consumption ~200 mikro Ampere
  //tempsensor.wake();   // wake up, ready to read!

  // Robojax example 
  Serial.print(getTemp('C'));// print Temperature in Celsius
        Serial.println(" C");// print C 
  Serial.print(getTemp('F'));// print Temperature in Celsius
        Serial.println(" F");// print F   
  Serial.print(getTemp('K'));// print Temperature in Kelvin
        Serial.println(" K");// print K  
  Serial.println(); 
      
  //Serial.println("Shutdown MCP9808.... ");
  //tempsensor.shutdown(); // shutdown MCP9808 - power consumption ~0.1 micro Ampere
  
  delay(1000);
  //YouTube Watch it here http://robojax.com/L/?id=338
}



/*
 * Written by Ahmad Shamshiri for Robojax.com
 * January 22, 2019 in Ajax, Ontario, Canada
 * 
 * getTemp(char type)
 * returns temperature in either C, F, or K
 * @param type is a character of upper case 
 * C is used to get Celsius
 * F is used to get Fahrenheit
 * K is used for Kelvin
 */
float getTemp(char type) {
	//YouTube Watch it here http://robojax.com/L/?id=338
    float c = tempsensor.readTempC();//get main temperature in C
  float f = c * 9.0 / 5.0 + 32;// convert to fahrenheit
  if(type =='F')
  {
    return f;// fahrenheit
  }else if(type =='K')
  {
    return c + 274.15;// return Kelvin
  }else{
   return c; //return Celsius
  }
  
}//getTemp ends