Interrupting a tune and stopping passive buzzer

Projects Programming
1

Hello everybody! New user and I'm having a little trouble with our coding.
We have our passive buzzer singing the Imperial March from Star Wars.
We were successful in turning it 'on' by pressing the '1' key on the IRremote
The issue that we are having is that when the passive buzzer starts it HAS to run thru the entire song before the IRreceiver starts receiving signals again.
What it boils down to is that we need our song to 'stop' when we press another button (any button will do)
We are at a loss and any help or simply fresh ideas would be greatly appreciated. :confused:

Attached is a txt file with the code so far.

#include <IRremote.h>

int receiver = 12;
int speakerPin = 11;

IRrecv irrecv(receiver);     // create instance of 'irrecv'
decode_results results;      // create instance of 'decode_results'

//speaker connected to one of the PWM ports

#define c 261
#define d 294
#define e 329
#define f 349
#define g 391
#define gS 415
#define a 440
#define aS 455
#define b 466
#define cH 523
#define cSH 554
#define dH 587
#define dSH 622
#define eH 659
#define fH 698
#define fSH 740
#define gH 784
#define gSH 830
#define aH 880
//frequencies for the tones we're going to use
//used http://home.mit.bme.hu/~bako/tonecalc/tonecalc.htm to get these

void translateIR() // takes action based on IR code received

// describing Remote IR codes

{

  switch (results.value)

  {
    case 0xFFA25D: Serial.println("POWER"); break;
    case 0xFFE21D: Serial.println("FUNC/STOP"); break;
    case 0xFF629D: Serial.println("VOL+"); break;
    case 0xFF22DD: Serial.println("FAST BACK");    break;
    case 0xFF02FD: Serial.println("PAUSE");    break;
    case 0xFFC23D: Serial.println("FAST FORWARD");   break;
    case 0xFFE01F: Serial.println("DOWN");    break;
    case 0xFFA857: Serial.println("VOL-");    break;
    case 0xFF906F: Serial.println("UP");    break;
    case 0xFF9867: Serial.println("EQ");    break;
    case 0xFFB04F: Serial.println("ST/REPT");    break;
    case 0xFF6897: Serial.println("0");    break;
    case 0xFF30CF: Serial.println("1");    break;
    case 0xFF18E7: Serial.println("2");    break;
    case 0xFF7A85: Serial.println("3");    break;
    case 0xFF10EF: Serial.println("4");    break;
    case 0xFF38C7: Serial.println("5");    break;
    case 0xFF5AA5: Serial.println("6");    break;
    case 0xFF42BD: Serial.println("7");    break;
    case 0xFF4AB5: Serial.println("8");    break;
    case 0xFF52AD: Serial.println("9");    break;
    case 0xFFFFFFFF: Serial.println(" REPEAT"); break;

    default:
      Serial.println(" other button   ");

  }// End Case

  delay(500); // Do not get immediate repeat


} //END translateIR

void setup()
{

  Serial.begin(9600);
  Serial.println("IR Receiver Button Decode");
  irrecv.enableIRIn(); // Start the receiver
  pinMode(speakerPin, OUTPUT);

}

void loop()   // run over and over again
{
  if (irrecv.decode(&results)) // have we received an IR signal?
  {
    translateIR();
    irrecv.resume(); // receive the next value
  }
  if (results.value == 0xFF30CF ) {
    march();

  }
  if (results.value != 0xFF30CF) {
    digitalWrite(speakerPin, LOW);

  }
}

void beep (unsigned char speakerPin, int frequencyInHertz, long timeInMilliseconds)
{
  int x;
  long delayAmount = (long)(1000000 / frequencyInHertz);
  long loopTime = (long)((timeInMilliseconds * 1000) / (delayAmount * 2));
  for (x = 0; x < loopTime; x++)
  {
    digitalWrite(speakerPin, HIGH);
    delayMicroseconds(delayAmount);
    digitalWrite(speakerPin, LOW);
    delayMicroseconds(delayAmount);
  }

  delay(20);
  //a little delay to make all notes sound separate
}

void march()
{
  //for the sheet music see:
  //http://www.musicnotes.com/sheetmusic/mtd.asp?ppn=MN0016254
  //this is just a translation of said sheet music to frequencies / time in ms
  //used 500 ms for a quart note

  beep(speakerPin, a, 500);
  beep(speakerPin, a, 500);
  beep(speakerPin, a, 500);
  beep(speakerPin, f, 350);
  beep(speakerPin, cH, 150);

  beep(speakerPin, a, 500);
  beep(speakerPin, f, 350);
  beep(speakerPin, cH, 150);
  beep(speakerPin, a, 1000);
  //first bit

  beep(speakerPin, eH, 500);
  beep(speakerPin, eH, 500);
  beep(speakerPin, eH, 500);
  beep(speakerPin, fH, 350);
  beep(speakerPin, cH, 150);

  beep(speakerPin, gS, 500);
  beep(speakerPin, f, 350);
  beep(speakerPin, cH, 150);
  beep(speakerPin, a, 1000);
  //second bit...

  beep(speakerPin, aH, 500);
  beep(speakerPin, a, 350);
  beep(speakerPin, a, 150);
  beep(speakerPin, aH, 500);
  beep(speakerPin, gSH, 250);
  beep(speakerPin, gH, 250);

  beep(speakerPin, fSH, 125);
  beep(speakerPin, fH, 125);
  beep(speakerPin, fSH, 250);
  delay(250);
  beep(speakerPin, aS, 250);
  beep(speakerPin, dSH, 500);
  beep(speakerPin, dH, 250);
  beep(speakerPin, cSH, 250);
  //start of the interesting bit

  beep(speakerPin, cH, 125);
  beep(speakerPin, b, 125);
  beep(speakerPin, cH, 250);
  delay(250);
  beep(speakerPin, f, 125);
  beep(speakerPin, gS, 500);
  beep(speakerPin, f, 375);
  beep(speakerPin, a, 125);

  beep(speakerPin, cH, 500);
  beep(speakerPin, a, 375);
  beep(speakerPin, cH, 125);
  beep(speakerPin, eH, 1000);
  //more interesting stuff (this doesn't quite get it right somehow)

  beep(speakerPin, aH, 500);
  beep(speakerPin, a, 350);
  beep(speakerPin, a, 150);
  beep(speakerPin, aH, 500);
  beep(speakerPin, gSH, 250);
  beep(speakerPin, gH, 250);

  beep(speakerPin, fSH, 125);
  beep(speakerPin, fH, 125);
  beep(speakerPin, fSH, 250);
  delay(250);
  beep(speakerPin, aS, 250);
  beep(speakerPin, dSH, 500);
  beep(speakerPin, dH, 250);
  beep(speakerPin, cSH, 250);
  //repeat... repeat

  beep(speakerPin, cH, 125);
  beep(speakerPin, b, 125);
  beep(speakerPin, cH, 250);
  delay(250);
  beep(speakerPin, f, 250);
  beep(speakerPin, gS, 500);
  beep(speakerPin, f, 375);
  beep(speakerPin, cH, 125);

  beep(speakerPin, a, 500);
  beep(speakerPin, f, 375);
  beep(speakerPin, c, 125);
  beep(speakerPin, a, 1000);
  //and we're done \ó/
}

Moderator edit: code inlined

deathmarchplayer.txt (5.46 KB)

2

If you know this needs to be done: "What it boils down to is that we need our song to 'stop' when we press another button (any button will do) ". Then why are you not checking for that button anywhere in your code?

Paul

3

We know exactly what the buttons correspond to. What the problem is is that once we push the "1" key on our remote it begins to play the Imperial March. At that time it proceeds to play the entire song and does not receive input from the IRreceiver until it's done playing.
We're trying to figure out a code that will continue to receive input and cut off the loop when we press some other key

if (results.value != "1") {
turn off the damn song;
}

or something like that which will take priority over the loop at any time
also we aren't sure if we should put said code in void March() function or our void loop()
We've tried both

4

It plays the whole song because you aren't checking for an IR code while you're playing the song.

Here's what I would do.

Change beep from a void to a bool
bool beep(...){

In beep(), test for an IR signal, and if received, exit with a
return false;
otherwise after the note is played, add
return true;

In march(), test the return status from beep()
if (!beep(speakerPin, a, 500)) return;

If beep returns a false, then exit the march() function.

This should put you back into the loop to process the new IR command.

Hope this helps

5

Thank you Steve! You are a gentleman and a scholar.