Question

我想要实现的是一个按钮，它可以作为开/关开关，用于在压电上播放曲调。最初我希望压电器不会发出任何声音，直到用户按下按钮，然后他们可以通过按下相同的按钮关闭压电器。我想知道是否有人可以帮我弄清楚我需要添加哪些代码才能获得这种按钮功能。

这是Arduino IDE附带的toneMelody草图的修改版本，我有一个连接到Pin 12的按钮，以及一个Piezo到Pin 8。

 #include "pitches.h"

// notes in the melody:
int melody[] ={
NE5,NF5,NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,NE5,NF5,NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,
0,NC5,NE5,NG5,NG5,NE5,ND5,NE5,ND5,0,NC5,NE5,NG5,NG5,NE5,ND5,0,NE5,0,NC5,NE5,NG5,NG5,NE5,ND5,NE5,ND5,0,NC5,NE5,NG5,NG5,NA5,NE5,0,NE5,
0,NC5,NE5,NG5,NG5,NE5,ND5,NE5,ND5,0,NC5,NE5,NG5,NG5,NE5,ND5,0,NE5,0,NC5,NE5,NG5,NG5,NE5,ND5,NE5,ND5,NF5,0,NE5,0,NC5,NF5,0,NE5,0,NC5,
NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,ND5,NB4,NB4,0,NC5,0,NG5,
NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,ND5,
NE5,NF5,NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,NE5,NF5,NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,
NE5,NF5,NE5,ND5,ND5,NC5,NC5,NC5,ND5,ND5,NE5,0,NE5,NF5,NE5,ND5,ND5,NC5,NC5,NC5,NG5,ND5,0,
NE5,NF5,NE5,ND5,ND5,NC5
              };
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
               8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,
               8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,
               8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,16,8,16,8,8,16,8,16,8,
               4,4,8,16,8,16,8,4,4,8,16,8,16,8,4,4,8,16,8,16,8,4,4,8,16,8,16,8,
               4,4,8,16,8,16,8,4,4,8,16,8,16,8,4,4,8,16,8,16,8,2,
               8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,
               8,8,8,8,4,4,8,8,8,4,2,8,8,8,8,8,4,4,8,8,8,2,8, 
               8,8,8,8,4,1
               };

void setup() {
  // iterate over the notes of the melody:
  for (int thisNote = 0; thisNote < 240; thisNote++) {

    // to calculate the note duration, take one second 
    // divided by the note type.
    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
    int noteDuration = 1000/noteDurations[thisNote];
    tone(8, melody[thisNote],noteDuration);

    // to distinguish the notes, set a minimum time between them.
    // the note's duration + 30% seems to work well:
    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // stop the tone playing:
    noTone(8);
  }
}

void loop() {
  // no need to repeat the melody.
}

Answer 1

我使用按钮的方式就是这样。我在上面和下面添加了评论，我添加了一些内容。出现这种情况将是当你按下按钮时，整首歌曲将播放然后停止，直到你再次按下按钮。你可以在这里看到我正在采取什么样的按钮http://arduino.cc/en/Tutorial/Button它还会给你一些示例代码，让你看看我搞砸了，如果我搞得搞砸了只是给我留言，我会告诉你如何解决。

#include "pitches.h"

// notes in the melody:

int melody[] ={

NE5,NF5,NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,NE5,NF5,

NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,

0,NC5,NE5,NG5,NG5,NE5,ND5,NE5,ND5,0,NC5,NE5,NG5,NG5,NE5,ND5,0,NE5,0,NC5,NE5,NG5,NG5,NE5,ND

5,NE5,ND5,0,NC5,NE5,NG5,NG5,NA5,NE5,0,NE5,

0,NC5,NE5,NG5,NG5,NE5,ND5,NE5,ND5,0,NC5,NE5,NG5,NG5,NE5,ND5,0,NE5,0,NC5,NE5,NG5,NG5,NE5,ND


5,NE5,ND5,NF5,0,NE5,0,NC5,NF5,0,NE5,0,NC5,

NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,ND5,NB4,NB4,0,NC5,

0,NG5,

NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,NE5,NE5,NE5,0,NE5,0,ND5,ND5,

NE5,NF5,NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,NE5,NF5,

NG5,ND6,0,NC6,NC6,NB5,NG5,NF5,0,NF5,NF5,NE5,NC5,NF5,NE5,ND5,NC5,NE5,ND5,0,

NE5,NF5,NE5,ND5,ND5,NC5,NC5,NC5,ND5,ND5,NE5,0,NE5,NF5,NE5,ND5,ND5,NC5,NC5,NC5,NG5,ND5,0,

NE5,NF5,NE5,ND5,ND5,NC5
              };
// note durations: 4 = quarter note, 8 = eighth note, etc.:

int noteDurations[] = {
               8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,
               8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,
               8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,8,8,8,8,16,8,16,8,8,16,8,16,8,8,16,8,16,8,

               4,4,8,16,8,16,8,4,4,8,16,8,16,8,4,4,8,16,8,16,8,4,4,8,16,8,16,8,

               4,4,8,16,8,16,8,4,4,8,16,8,16,8,4,4,8,16,8,16,8,2,
               8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,8,8,8,4,8,4,8,8,8,4,8,4,8,8,8,4,4,8,8,8,2,8,

               8,8,8,8,4,4,8,8,8,4,2,8,8,8,8,8,4,4,8,8,8,2,8, 

               8,8,8,8,4,1

               };


//int to identify what digital pin the button is hooked up to

// can Chang 2 if put button on a different pin

int buttonPin = 2;

void setup() {

//says button pin is a input

    pinMode(buttonPin, INPUT);   

// I might say make a int = to the pin you have

// your sound maker on, name it soundMakerPin, and the uncomment the line below

//  pinMode(soundMakerPin, OUTPUT); 

}

void loop(){

// read the button

  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed.

  // if it is, the buttonState is HIGH:

  if (buttonState == HIGH) {  

    // play song

song(); 

}

}


//function named song, call this and your song should play

void song(){

// iterate over the notes of the melody:

  for (int thisNote = 0; thisNote < 240; thisNote++) {

    // to calculate the note duration, take one second 

    // divided by the note type.

    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.

    int noteDuration = 1000/noteDurations[thisNote];

    tone(8, melody[thisNote],noteDuration);

    // to distinguish the notes, set a minimum time between them.

    // the note's duration + 30% seems to work well:

    int pauseBetweenNotes = noteDuration * 1.30;

    delay(pauseBetweenNotes);

    // stop the tone playing:

    noTone(8);

  }

}

Arduino - 如何用按钮控制压电？

1 个答案: