/*
Westminster Chime Clock
Al Brendel 3/4/2016

*/

#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 RTC;
int latchPin = 5;    //define the Arduino output pins
int clockPin = 6;
int dataPin = 4;
unsigned int note = 0;       // 16 bit word defining which solenoids to energize
int beats=1;         // number of beats until next note
int tempo=1200;       // sets delay between notes
int strikeTime=18;  // length of time solenoid is energized (10< >50 100=LEDs

 // Define the notes... organized from high to low... Nomenclature is (Note)(s for sharp)(h is for high)
 
unsigned int  Gh =   0b1000000000000000; 
unsigned int   Fsh = 0b0100000000000000; 
unsigned int  Fh =   0b0010000000000000; 
unsigned int  Eh =   0b0001000000000000;
unsigned int   Dsh = 0b0000100000000000;
unsigned int  Dh =   0b0000010000000000;
unsigned int   Cs  = 0b0000001000000000; 
unsigned int  C =   0b0000000100000000;
unsigned int  B  =   0b0000000010000000;
unsigned int   As  = 0b0000000001000000; 
unsigned int  A =    0b0000000000100000;
unsigned int   Gs =  0b0000000000010000;
unsigned int  G =    0b0000000000001000;
unsigned int   Fs =  0b0000000000000100;
unsigned int  F =    0b0000000000000010;
unsigned int  E =    0b0000000000000001;
unsigned int rest =  0b0000000000000000; //  no solenoids 
 

void setup () {
   //Set the hardware
  pinMode(latchPin, OUTPUT);      // set the pins to be outputs
  pinMode(dataPin, OUTPUT);  
  pinMode(clockPin, OUTPUT);

  // set all solenoids off
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, 0b00000000);
  shiftOut(dataPin, clockPin, MSBFIRST, 0b00000000);
  digitalWrite(latchPin, HIGH);
  
    Wire.begin();
    RTC.begin();

}

void goPlay(int note,int beats)     // This is the subroutine that does all the work.
 {
     
            // load the shift registers, first with the note, then with zeros

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, highByte(note));
  shiftOut(dataPin, clockPin, MSBFIRST, lowByte(note));
  digitalWrite(latchPin, HIGH);
  delay (strikeTime);                    // set the length of time that the strikers are actuated
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, 0b00000000);
  shiftOut(dataPin, clockPin, MSBFIRST, 0b00000000);
  digitalWrite(latchPin, HIGH);
  delay (beats*tempo);                      // adjust delay between notes for tempo
 }

void loop () {
    
    delay(30000);                 //read the clock every 30 seconds
    DateTime now = RTC.now();     
    int gong=now.minute();
                                  //melody every 15 minutes
    if (gong == 15){
    
              //quarter hour
             // set 1
  goPlay(Dh,1);
  goPlay(C,1);
  goPlay(As,1);
  goPlay(F,1);
  delay(90000);
}
    else if(gong==30){
                   //half hour 
                 //set 2 
  goPlay(As,1);
  goPlay(Dh,1);
  goPlay(C,1);
  goPlay(F,1);
                // set 3
  goPlay(As,1);
  goPlay(C,1);
  goPlay(Dh,1);
  goPlay(As,1);
   delay(90000);
    }
    else if(gong==45){
  
                // 3/4 Hour
                //    set 4
  goPlay(Dh,1);
  goPlay(As,1);
  goPlay(C,1);
  goPlay(F,1);
                    //set 5
  goPlay(F,1);
  goPlay(C,1);
  goPlay(Dh,1);
  goPlay(As,1);
                    // set 1
  goPlay(Dh,1);
  goPlay(C,1);
  goPlay(As,1);
  goPlay(F,1);
   delay(90000);
    }
    else if(gong==0){
  
                    //Hour 
                    //set 2
   goPlay(As,1);
  goPlay(Dh,1);
  goPlay(C,1);
  goPlay(F,1);
  
                     // set 3
  goPlay(As,1);
  goPlay(C,1);
  goPlay(Dh,1);
  goPlay(As,1);
                      //set 4
  goPlay(Dh,1);
  goPlay(As,1);
  goPlay(C,1);
  goPlay(F,1);
                     //set 5
  goPlay(F,1);
  goPlay(C,1);
  goPlay(Dh,1);
  goPlay(As,1);
   delay(90000);
    }
  
  
  
  
//   }
    
}