喇叭

#include "pitches.h"

void setup() {

  // put your setup code here, to run once:

  pinMode(3, INPUT);

  pinMode(4, INPUT);

  pinMode(5, INPUT);

  pinMode(6, INPUT);  

 /// pinMode(7, INPUT);

 // pinMode(8, INPUT);

  //pinMode(9, INPUT);

  //pinMode(10, INPUT);

  pinMode(12, OUTPUT);

}

void loop() {

  // put your main code here, to run repeatedly:

  if(digitalRead(3)==0)

  tone(12, NOTE_C5,10);

  if(digitalRead(4)==0)

    tone(12, NOTE_D5,10);

  if(digitalRead(5)==0)

    tone(12, NOTE_E5,10);

  if(digitalRead(6)==0)

    tone(12, NOTE_F5,10);

/*  if(digitalRead(7)==0)

    tone(12, NOTE_G5,10);

  if(digitalRead(8)==0)

    tone(12, NOTE_A5,10);

  if(digitalRead(9)==0)

    tone(12, NOTE_B5,10);

  if(digitalRead(10)==0)

    tone(12, NOTE_C6,10);

    */

}