running a set of functions until a sensor changes

Projects Programming
1

What I am trying to accomplish is the following:

  • In setup, set all my globals to false -- easy
  • In the loop, check my entry sensor, if it trips run all my other routines --- not so easy

What does "run all my other routines mean?"

Sensor tripped-->play sound file --> while sound file is playing do all these things

  • Lower the crossing signal arms
  • Turn the crossing signal flashers on and they stay on until I say they turn off
  • Turn the road power off and it stays off until I turn it back on

Once the exitSensor is tripped, turn road power back on, raise signal arms, turn flashers off, then stop sound card from playing.

For right now I am simply trying to figure out how to just keep the sound playing after I trip the sensor. It only plays one time for a split second now.

I am a C# ASP.Net guy so continuously running loops loops are not my forte.

//Libraries Required
//Music Maker MP3 -- include SPI, MP3 and SD libraries
#include <SPI.h>
#include <Adafruit_VS1053.h>
#include <SD.h>

// Pins used for the music maker shield
#define SHIELD_RESET  -1      // VS1053 reset pin (unused!)
#define SHIELD_CS     7      // VS1053 chip select pin (output)
#define SHIELD_DCS    6      // VS1053 Data/command select pin (output)

// Common pins
#define CARDCS 4     // Card chip select pin
// DREQ should be an Int pin, see http://arduino.cc/en/Reference/attachInterrupt
#define DREQ 3       // VS1053 Data request, ideally an Interrupt pin

Adafruit_VS1053_FilePlayer musicPlayer = Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS);

//global variables required
boolean crossingSignalInOperation = false;
boolean signalEntrySensor = false;
boolean debugMode = false;

//Functions
void onSignalSound(Adafruit_VS1053_FilePlayer mp, const char* fileName ) {  

  // Play the train crossing sound file
  if (debugMode)
  {
    Serial.println(F("Playing track - "));
    Serial.print(fileName);
  }
  
  //all sound files are on the micro sd card on the music player shield
  if (!mp.startPlayingFile(fileName)) {
    Serial.println("Could not open file ");
    Serial.print(fileName);
    while (1);
  }
  while (mp.playingMusic) {
    // file is now playing so run other routines 
    //offRoadPower();
    //lowerSignalArms();
    //startSignalFlashers();
   // crossingSignalInOperation = true;
    delay(4000);  //to see if it will play for more than a split second
  }
     doOnce = true;
}

void offSignalSound(Adafruit_VS1053_FilePlayer mp){

mp.stopPlaying();
}

boolean checkEntrySensor() {
  //check entry sensor, if tripped return true otherwise false
  return true;  //no code yet, just testing now
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  debugMode = true;   //set this to false once code is fully operational
  //initialise music maker shield
    if (!musicPlayer.begin()) { 
      if (debugMode)
      {
        Serial.println(F("Couldn't find VS1053, do you have the right pins defined?"));
      }
    
    while (1);
  }
  // Set volume for left, right channels. lower numbers == louder volume!           
  musicPlayer.setVolume(20, 20);
  if (debugMode)
  {
    Serial.println(F("VS1053 found"));
  }
  
  // initialise the SD card
  SD.begin(CARDCS);    
  
  //ensure our global booleans all start false  
   signalEntrySensor = false ;
  
}

void loop() {
  // put your main code here, to run repeatedly
  
  signalEntrySensor = checkEntrySensor();
  if (signalEntrySensor == true) {
    if (doOnce == false)    {
      onSignalSound(musicPlayer, "trainxng.mp3");  //all other functions are called in the sound routine?
      if (debugMode)
      {
        Serial.println("Sound byte called");
      }
      doOnce = true;      
    }   
  }
}

Any help appreciated.