Bringing Darth Vader to life with Lights and Sounds

// This #include statement was automatically added by the Particle IDE.
#include "Adafruit_VS1053_Photon_Beta/Adafruit_VS1053_Photon_Beta.h"

#include "application.h"

#include "string.h"

// define the pins used
#define CLK     D4//13       // SPI Clock, shared with SD card
#define MISO    D3//12       // Input data, from VS1053/SD card
#define MOSI    D2//11       // Output data, to VS1053/SD card
// Connect CLK, MISO and MOSI to hardware SPI pins. 
// See http://arduino.cc/en/Reference/SPI "Connections"

// These are the pins used for the breakout example
#define BREAKOUT_RESET  A4//9      // VS1053 reset pin (output)
#define BREAKOUT_CS     D5//10     // VS1053 chip select pin (output)
#define BREAKOUT_DCS    A5//8      // VS1053 Data/command select pin (output)

// These are common pins between breakout and shield
#define CARDCS  D6//4              // Card chip select pin
// DREQ should be an Int pin, see http://arduino.cc/en/Reference/attachInterrupt
#define DREQ    WKP//3             // VS1053 Data request, ideally an Interrupt pin

// For triggering to play the file:
#define RANDOMPIN A1
#define MARCHPIN A0

// For controlling external relays
#define RELAY_1 D0           // Relay 1 Pin
#define RELAY_2 D1           // Relay 2 Pin

int randomState = 0;
int marchState = 0;

Adafruit_VS1053_FilePlayer musicPlayer = Adafruit_VS1053_FilePlayer(MOSI, MISO, CLK, BREAKOUT_RESET, BREAKOUT_CS, BREAKOUT_DCS, DREQ, CARDCS);

bool playing = false;

char dirInfo[1024];

bool breathing = false;
bool blinking = false;

void setup() {
    
    pinMode(RANDOMPIN, INPUT);
    pinMode(MARCHPIN, INPUT);
    
    pinMode(RELAY_1, OUTPUT);
    pinMode(RELAY_2, OUTPUT);
    
    digitalWrite(RELAY_1, HIGH);
    digitalWrite(RELAY_2, HIGH);
    
    //Serial.begin(9600);
    
    if (!SD.begin(MOSI, MISO, CLK, CARDCS)) { // initialize the SD card
        //Serial.println(F("SD failed, or not present"));
        Particle.process();
    }
    //Serial.println("SD OK!");    
    
    Spark.function("play", playSound);
    Spark.function("randomPlay", playRandomSound);
    Spark.function("toggleRelay1", toggleRelayBreathe);
    Spark.function("toggleRelay2", toggleRelayLights);

    // list files
    printDirectory(SD.open("/"), 0); 
    
    Spark.variable("listFiles", dirInfo);

    
    delay(1000); //to allow user to start up serial com.
    
    if (! musicPlayer.begin()) { // initialize the music player
      //Serial.println(F("Couldn't find VS1053, do you have the right pins defined?"));
    } else {
      //Serial.println(F("VS1053 found"));

      // Set volume for left, right channels. lower numbers == louder volume!
      musicPlayer.setVolume(15,15);

      // Play one file, don't return until complete
      //Serial.println(F("Playing vaderbreath"));
      playing = true;
      //musicPlayer.playFullFile("/Init/vaderbr.mp3");
      musicPlayer.playFullFile("ysmaster.mp3");

    }    

}

int playSound(String args) {
 
    if (args != "" ) {
      // Play one file, don't return until complete

      //Serial.println("Playing Track " + args + ".mp3");
      args = args + ".mp3";

      char inData[30];
      args.toCharArray(inData,30);
      
      digitalWrite(RELAY_1, HIGH);
      musicPlayer.playFullFile(inData);
      if (breathing = true)
      {
          digitalWrite(RELAY_1, LOW);
      }

      args = "";
      
      return 1;
      
    }
    
}

int playRandomSound(String args) {
    
    File path = SD.open("/");
    File results;
    char* MP3 = selectRandomFileFrom(path, results);
    delay(100);

    digitalWrite(RELAY_1, HIGH);
    musicPlayer.playFullFile(MP3);
    if (breathing = true)
    {
     digitalWrite(RELAY_1, LOW);
    }
}

int toggleRelayBreathe(String args) {
    
    if (args != "") {
        
        if (args.startsWith("ENABLE"))
        {
            blinking = true;
            digitalWrite(RELAY_1, LOW);
        }
        
        if (args.startsWith("DISABLE"))
        {
            blinking = false;
            digitalWrite(RELAY_1, HIGH);
        }
        
    }
    
}

int toggleRelayLights(String args) {
    
    if (args != "") {
        
        if (args.startsWith("ENABLE"))
        {
            breathing = true;
            digitalWrite(RELAY_2, LOW);
        }
        
        if (args.startsWith("DISABLE"))
        {
            breathing = false;
            digitalWrite(RELAY_2, HIGH);
        }
        
    }
    
}

void loop() {
    // File is playing in the background
    if ((musicPlayer.stopped()) && playing) {
        //Serial.println("Done playing music");
        playing = false;
    }

    delay(100);

    int randomNewState = digitalRead(RANDOMPIN);
    int marchNewState = digitalRead(MARCHPIN);
    
    if (randomNewState == 0 && randomState == 1) {

        // put your main code here, to run repeatedly:
        File path = SD.open("/");
        File results;
        char* MP3 = selectRandomFileFrom(path, results);
        delay(100);

        musicPlayer.playFullFile(MP3);

    }
    
    randomState = randomNewState;
    
    if (marchNewState == 0 && marchState == 1) {
        musicPlayer.playFullFile("/Music/imperial.mp3");
    }
    
    marchState = marchNewState;    

}

// Function to select random mp3
char* selectRandomFileFrom( File dir, File result ) {
    File entry;
    int count = 0;

    dir.rewindDirectory();

    while ( entry = dir.openNextFile() ) {
        if (random( count ) == 0) {
        //Serial.println(entry.name());
        result = entry;
    }
    entry.close();
    count++;
    }
    return result.name();   // returns the randomly selected file name
}

/// File listing helper
void printDirectory(File dir, int numTabs) {
    String sFiles;
    while(true) {
     
        File entry =  dir.openNextFile();
        if (! entry) {
            // no more files
            //Serial.println("**nomorefiles**");
            break;
        }
        for (uint8_t i=0; i<numTabs; i++) {
            //Serial.print('\t');
        }
        //Serial.print(entry.name());
        if (entry.isDirectory()) {
            //Serial.println("/");
            //printDirectory(entry, numTabs+1);
        } else {
            // files have sizes, directories do not
            //Serial.print("\t\t");
            //Serial.println(entry.size(), DEC);
            String f = entry.name();
            f.replace(".MP3","");
            sFiles = sFiles + f + "|";
        }
        entry.close();
    }
    sFiles.toCharArray(dirInfo, 1024);
}