Variable tone beeper?

[iflymyhelishigh]

Hi guys, I was looking at videos, and saw something. Is there such thing as a variable tone beeper?

I saw it in this video

YouTube - Turbine First Start JetCat PHT3

and I was wondering if it was 3 separate beepers, or 1 variable beeper. Thanks

Also, can I use one of these beepers if there are any with a PIC?

 

[mramos1]

You can take some piezo beepers and pulse it at different frequencies to make different tones. I assume you are talking about the jet-tronic device?

 

[iflymyhelishigh]

Yep. Does anyone know what kind of piezo buzzer sounds like that and how to pulse it with a PIC?

EDIT: I'm trying to make a power supply, but I'm overcomplicating it with buzzers, beepers, lights, etc.

I have so much space in the case of my PSU lol

 

[mramos1]

Yep. Does anyone know what kind of piezo buzzer sounds like that and how to pulse it with a PIC?

EDIT: I'm trying to make a power supply, but I'm overcomplicating it with buzzers, beepers, lights, etc.

I have so much space in the case of my PSU lol

They will sound how you want it, the frequency you pulse it at makes the tone.

Google should have a PIC and piezo circuit and maybe some code too.

 

[iflymyhelishigh]

Haha ok. This is going to be the most overkill PSU ever... hehe

 

[iflymyhelishigh]

Is it possible to use a PIC at a frequency generator?

 

[98formulaLS1]

yes, a PIC can generate a frequency output, which filtered, would give you a sine wave.

The buzzers have a resonant frequency, so maybe a buzzer with multiple buzzers built into one housing. imagine this. three coils of wires are wound separetly, but the two pairs of leads are connected together. Then, if the resonant frequencies were 1k, 5k, and 20k, then putting 20k on the lines wouldn't do much for the other two buzzers.

 

[iflymyhelishigh]

Hmm, is there an example of code anywhere? I'm thinking of coding in C, and destroyed my brain today studying. Haha, apparently, I think I can use FreqOut or something.