Arduino Due Metronome Headphones

Other Hardware Audio
1

Hi,

I am in a kind of a rush, looking for a code that creates a metronome tone in simple headphones that are connected to an arduino due. Unfortunately, the function tone() does not work for arduino due, so I looked a while in the forum but couldn't find something that worked.

So I wanted to ask, if someone has a decent code for this purpose. The only thing that I have to change in the future is the frequency of the tone, that's it..

Thanks for your help,
Maitschi

2

Moved to audio section as here no answers came

3

This code generates tick-tock on a Teensy 3.2 (a 3.3V processor like Due) without using tone().

// Legends of Zelda - Song Of Storms/Windmill Hut
// coded by Calum
// feel free to edit or change the code
/*
  PAH - heavily modified to just do tick/tock
  From: http://forum.arduino.cc/index.php?topic=56637.0
*/
int speakerPin = 9; //Speaker or Piezo buzzer on pin 9

void setup(void)   
{
  pinMode(speakerPin, OUTPUT);
  
  for(int i = 0;i < 5;i++ ) {
    tick(speakerPin);
    delay(1000);
    tock(speakerPin);
    delay(1000);
  }
}       

void loop(void)
{
}       

void tick(unsigned char speakerPin)
{
  for (int x=0;x<6;x++)   
  {   
    digitalWrite(speakerPin,HIGH);
    delayMicroseconds(500);
    digitalWrite(speakerPin,LOW);
    delayMicroseconds(500);
  }   
}       

void tock(unsigned char speakerPin)
{
  for (int x=0;x<3;x++)   
  {   
    digitalWrite(speakerPin,HIGH);
    delayMicroseconds(1000);
    digitalWrite(speakerPin,LOW);
    delayMicroseconds(1000);
  }   
}

For a metronome, just call either tick() or tock(), whichever sounds better.
I have a piezo speaker wired directly on pin 9.

Pete