#include <Wire.h>
#include <Servo.h> 
#include "pitches.h"

#define POWER_RED 10
#define POWER_GREEN 11
#define POWER_BLUE 13

#define ECONOMY_RED 5
#define ECONOMY_GREEN 6  
#define ECONOMY_BLUE 9

#define SERVO0 A1
#define SERVO1 A2 

#define BUZZER A3 

// notes in the melody:
int melody[] = {
  NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
  4, 8, 8, 4,4,4,4,4 };

boolean values_ok =false;
unsigned long Sensor[9];
Servo servo0, servo1;  // create servo object to control a servo 

void setup()
{
  Wire.begin(4);                // join i2c bus with address #4
  Wire.onReceive(receiveEvent); // register event
  Serial.begin(9600);           // start serial for output
//  servo0.attach(SERVO0);
//  servo1.attach(SERVO1);
  
  for (int red =0; red<256; red++) {power_led(red, 0, 0); delay(10);}
  for (int green =0; green<256; green++) {power_led(0, green, 0); delay(10);}
  for (int blue =0; blue<256; blue++) {power_led(0, 0, blue); delay(10);}
  power_led(0, 0, 0);
  
  for (int red =0; red<256; red++) {economy_led(red, 0, 0); delay(10);}
  for (int green =0; green<256; green++) {economy_led(0, green, 0); delay(10);}
  for (int blue =0; blue<256; blue++) {economy_led(0, 0, blue); delay(10);}
  economy_led(0, 0, 0);
  
    // iterate over the notes of the melody:
  for (int thisNote = 0; thisNote < 8; thisNote++) {

    // to calculate the note duration, take one second 
    // divided by the note type.
    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
    int noteDuration = 1000/noteDurations[thisNote];
    tone(BUZZER, melody[thisNote],noteDuration);

    // to distinguish the notes, set a minimum time between them.
    // the note's duration + 30% seems to work well:
    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // stop the tone playing:
    noTone(8);
  }
  

}

void loop()
{
  if (values_ok)
    {
     Serial.print("Temperatura: "); Serial.print(-46.85 + 175.72 / 65536.0 * (float)Sensor[0]); Serial.println(" C");
     Serial.print("Humedad: "); Serial.print(-6.0 + 125.0 / 65536.0 * (float)Sensor[1]); Serial.println(" %");
     Serial.print("Luz: "); Serial.print(Sensor[2]/10.); Serial.println(" lx");
     Serial.print("Bateria: "); Serial.print(Sensor[3]/10.); Serial.println(" %");
     Serial.print("Panel Solar: "); Serial.print(Sensor[4]); Serial.println(" mV");
     Serial.print("Monoxido de Carbono: "); Serial.print(Sensor[5]/1000.); Serial.println(" kOhm");
     Serial.print("Dioxido de Nitrogeno: "); Serial.print(Sensor[6]/1000.); Serial.println(" kOhm");
     Serial.print("Ruido: "); Serial.print(Sensor[7]); Serial.println(" mV");
     Serial.print("Puntos WIFI: "); Serial.println(Sensor[8]); 
     Serial.println(F("*******************"));  
     values_ok=false; 
    }
//    for (int i=0; i<180; i++)
//      {
//        servo0.write(i);                  // sets the servo position according to the scaled value 
//        servo1.write(i);                  // sets the servo position according to the scaled value 
//        delay(15);                           // waits for the servo to get there 
//      }
//    for (int i=180; i>0; i--)
//      {
//        servo0.write(i);                  // sets the servo position according to the scaled value 
//        servo1.write(i);                  // sets the servo position according to the scaled value 
//        delay(15);                           // waits for the servo to get there 
//      }
}

// function that executes whenever data is received from master
// this function is registered as an event, see setup()
int count = 0;
int value = 0;

void receiveEvent(int howMany)
{
  while (Wire.available())
    {
      unsigned long x = Wire.read();    // receive byte as an integer
      if (count == 0) {count=count + 1; Sensor[value] = x<<24;}
      else if (count == 1) {count=count + 1; Sensor[value] = Sensor[value]|(x<<16);}
      else if (count == 2) {count=count + 1; Sensor[value] = Sensor[value]|(x<<8);}
      else if (count == 3) {count = 0; Sensor[value] = Sensor[value]|x; value=value+1; if(value==9) {value=0; values_ok=true; }}
//      Serial.println(x);         // print the integer
    }
}

void power_led(int red, int green, int blue)
{
  analogWrite(POWER_RED, red);
  analogWrite(POWER_GREEN, green);
  analogWrite(POWER_BLUE, blue);
}

void economy_led(int red, int green, int blue)
{
  analogWrite(ECONOMY_RED, red);
  analogWrite(ECONOMY_GREEN, green);
  analogWrite(ECONOMY_BLUE, blue);
}