Ligando buzzer com arduino

 ola gente aqui iremos ligar um buzzer ( auto falante com arduino ) nao importa o auto falante pode ser um buzzer pequeno ou um auto falante ai vai do material , como o projeto e simples iremos deixar muitos exemplos aqui de códigos bacanas!

 Aqui estar como liga:

 

Sirene.

//Programa : Som no Arduino - Sirene //Autor : Arduino curiosidades #define tempo 10 int frequencia = 0; int Pinofalante = 10; void setup() { pinMode(Pinofalante,OUTPUT); //Pino do buzzer } void loop() { for (frequencia = 150; frequencia < 1800; frequencia += 1) { tone(Pinofalante, frequencia, tempo); delay(1); } for (frequencia = 1800; frequencia > 150; frequencia -= 1) { tone(Pinofalante, frequencia, tempo); delay(1); } }

Super mario 

int portSpeak(9);  //porta ligada no speaker

//melodia do MARIO THEME
int melodia[] = {660,660,660,510,660,770,380,510,380,320,440,480,450,430,380,660,760,860,700,760,660,520,580,480,510,380,320,440,480,450,430,380,660,760,860,700,760,660,520,580,480,500,760,720,680,620,650,380,430,500,430,500,570,500,760,720,680,620,650,1020,1020,1020,380,500,760,720,680,620,650,380,430,500,430,500,570,585,550,500,380,500,500,500,500,760,720,680,620,650,380,430,500,430,500,570,500,760,720,680,620,650,1020,1020,1020,380,500,760,720,680,620,650,380,430,500,430,500,570,585,550,500,380,500,500,500,500,500,500,500,580,660,500,430,380,500,500,500,500,580,660,870,760,500,500,500,500,580,660,500,430,380,660,660,660,510,660,770,380};

//duraçao de cada nota
int duracaodasnotas[] = {100,100,100,100,100,100,100,100,100,100,100,80,100,100,100,80,50,100,80,50,80,80,80,80,100,100,100,100,80,100,100,100,80,50,100,80,50,80,80,80,80,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,150,200,80,80,80,100,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,150,200,80,80,80,100,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,100,100,100,60,80,60,80,80,80,80,80,80,60,80,60,80,80,80,80,80,60,80,60,80,80,80,80,80,80,100,100,100,100,100,100,100};

void setup() {
  //for para tocar as 156 notas começando no 0 ate 156 ++ incrementado
        for (int nota = 0; nota < 156; nota++) {

              int duracaodanota = duracaodasnotas[nota];
              tone(portSpeak, melodia[nota],duracaodanota);
  //pausa depois das notas
              int pausadepoisdasnotas[] ={150,300,300,100,300,550,575,450,400,500,300,330,150,300,200,200,150,300,150,350,300,150,150,500,450,400,500,300,330,150,300,200,200,150,300,150,350,300,150,150,500,300,100,150,150,300,300,150,150,300,150,100,220,300,100,150,150,300,300,300,150,300,300,300,100,150,150,300,300,150,150,300,150,100,420,450,420,360,300,300,150,300,300,100,150,150,300,300,150,150,300,150,100,220,300,100,150,150,300,300,300,150,300,300,300,100,150,150,300,300,150,150,300,150,100,420,450,420,360,300,300,150,300,150,300,350,150,350,150,300,150,600,150,300,350,150,150,550,325,600,150,300,350,150,350,150,300,150,600,150,300,300,100,300,550,575};
              delay(pausadepoisdasnotas[nota]);}

              noTone(portSpeak);
}

void loop() {

}

Marcha imperial 

int ledPin = 13;
//led for visualization (use 13 for built-in led)

int speakerPin = 9;
//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/
}