งานปฏิบัติ 8

BUZZER

Code

#include "LedControl.h"

#define C4  262

#define D4  294

#define E4  330

#define F4  349

#define G4  392

#define A4  440

#define B4  494

#define C5  523

int melody[] = {C4,D4,E4,F4,G4,A4,B4,C5};

float beats[] ={1,1,1,1,1,1,1,1};

int buzzerpin = 11;

int timestop = 70;

LedControl lc=LedControl(8,10,9,1);

// Pin 8->DIN, 10->CLK, 9->CS(LOAD), 1 = No.of devices

void setup()

{

  lc.shutdown(0,false); 

  lc.setIntensity(0,5);

  lc.clearDisplay(0);

  int dl = 500;

  pinMode(buzzerpin,OUTPUT);

  int numnote;

  numnote = sizeof(melody)/2; 

  for (int i=0;i<numnote;i++)

  {

    lc.setChar(0,7-i,'-',false);

    tone(buzzerpin, melody[i],dl*beats[i]);

    delay(dl*beats[i]);

    digitalWrite(buzzerpin,HIGH);

    delay(timestop);

  }

}

void loop()

{

}