Ciao ragazzi, sono nuovo sia nel forum sia nel fare questo tipo di progetti. Sto provando a progettare un rover, un robot che si muove comandato da me tramite seriale. Quello che vorrei aggiungere è il suono del beep (cicalino) quando premo un tasto da tastiera. La canzone che vorrei si sentisse è la marcia imperiale di cui ho postato il codice ma non la vorrei in loop così come è impostato. Vorrei che prendo il pulsante da tastiera, riproduce una sola volta la canzone e poi si ferma. Come potrei fare? Qualcuno potrebbe aiutarmi ad aggiungere il controllo da tastiera e a togliere il loop? Grazie mille
int ledPin = 10;
//led for visualization (use 13 for built-in led)
int speakerPin = 11;
//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 setup()
{
pinMode(ledPin, OUTPUT);
// sets the ledPin to be an output
pinMode(speakerPin, OUTPUT);
//sets the speakerPin to be an output
}
void loop() // run over and over again
{
march();
}
void beep (unsigned char speakerPin, int frequencyInHertz, long timeInMilliseconds)
{
digitalWrite(ledPin, HIGH);
//use led to visualize the notes being played
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);
}
digitalWrite(ledPin, LOW);
//set led back to low
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/
}