Piezo buzzer to the SPKR?

Propaganda · Jun 21, 2007

I am building a custom case and I don't want to use a speaker for the BIOS codes. (if needed) I would perfer something in an extremely small form factor such as a miniature piezo buzzer.

I am thinking I could connect a piezo buzzer w/out a driver built-in and function.

Any thoughts or experiences? I would simply try it but I don't have any non built-in driver piezo buzzers.

jivetrky · Jun 21, 2007

That would work just fine. Just have to make sure the voltage ratings are the same. Here's a link that shows a similar speaker setup that comes with some cases:

http://www.newegg.com/Product/ShowI...ue+Steel+ATX+Mid+Tower+Computer+Case+-+Retail

Here's some places you can buy one:
http://www.xoxide.com/hspc-atx-control-kit.html

http://www.directron.com/d500speaker.html

Probably other places to find them as well....

Propaganda · Jun 21, 2007

Wow, great!

Thanks for info.

Propaganda · Jun 22, 2007

hmmm... i wonder if those have drivers or not built-in... I would like to assume that they don't have built-in drivers... but,...

jivetrky · Jun 22, 2007

Propaganda said:
hmmm... i wonder if those have drivers or not built-in... I would like to assume that they don't have built-in drivers... but,...

Drivers as in part of the speaker or driver as in software that allows the computer to communicate with hardware?

To the first part: I'm not really sure how piezo speakers work...but I'd guess there's some sort of driver.

But to the second part: if you are referring to a software/hardware driver...there is no such thing needed for a speaker like this...you just hook it directly to the motherboard connector for the case speaker.

Propaganda · Jun 22, 2007

Some Piezo buzzers can just be powered and make a set tone while others need a circuit to determine pitch and volume. (Hence a 'driving' circuit)

I am flipping through my Mouser catalog and the terms I am seeing are 'external drive', 'self-drive', and 'built-in drive'. I'm about to do a google search on the second and third, they seem like the same thing.

jivetrky · Jun 22, 2007

Propaganda said:
Some Piezo buzzers can just be powered and make a set tone while others need a circuit to determine pitch and volume. (Hence a 'driving' circuit)

I am flipping through my Mouser catalog and the terms I am seeing are 'external drive', 'self-drive', and 'built-in drive'. I'm about to do a google search on the second and third, they seem like the same thing.

ahh ok, gotcha

Propaganda · Jun 23, 2007

I still don't know which way to go. Google is not doing it ATM.

Propaganda · Jun 26, 2007

I am just goin' to pick up all three and test it on an older mobo... they are only a buck or so each. If anyone is interested I will post my findings in a few weeks or so.

EmAn · Jun 26, 2007

the peizo transducer will work as it only takes a current to pass throught it... i believe that is all that the system speaker is...

for the beep codes only requires a peizo disc

Propaganda · Jul 2, 2007

I inspected a few PCs... a gateway with a piezo onboard buzzer... the numbers did not check. The I found an old mobo from the duron 1200mhz era the onboard piezo buzzer checked 'kc-1206"... = MAGNETIC TRANSDUCER. PDF

Then I connected a self-drive piezo to the speaker output of the last mobo... it worked fine. So I ordered a self-drive and a MAGNETIC TRANSDUCER.

Piezo buzzer to the SPKR?

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