4 buzzers running at the same time

Other Hardware Audio
1

Hey guys,
I'm working on a project where I need to play 4 buzzers simultaneously, each one with a different frequency. However, using tone() you can only have one buzzer working at a time. Any solution to this?

Ideally it would have to be something like this:

   int buz1 =8;
   int buz2 =9;
   int buz3 =10;
   int buz4 =11;
   int button=A0;
   int var_button;
void setup() {
   pinMode(buz1,OUTPUT);
   pinMode(buz2,OUTPUT);
   pinMode(buz3,OUTPUT);
   pinMode(buz4,OUTPUT);
   pinMode(button,INPUT);
}
void loop() {
  var_button=digitalRead(button);
  if (var_button==HIGH){
    tone(buz1, 523, 1);
    tone(buz2, 659, 1);
    tone(buz3, 784, 1);
    tone(buz4, 988, 1);
  }
}

however, this doesn't work because of the tone() restrictions, so it only activates the first buzzer.
Any help wold be appreciated

2

Use another library, try googling-
Arduino polyphonic tone

This looks like what you want Simple Polyphonic Synth - Just WIth Arduino - YouTube

3

why not just mix the tones down? / Can we have more details :slight_smile: