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How can I make this buzzer buzz? It makes a small "ping" Answered

I got this buzzer from a surplus shop and I hooked up wires but only makes a small ping when I touch the wires to a battery terminal, How can I make it buzz?

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NachoMahmaBest Answer (author)2011-03-19

. It may require AC
. Some buzzers have a switch that makes and breaks as the diaphragm moves. It may need to be adjusted.

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ploop171 (author)2011-04-12

i have a very similar one from a smoke detector and i wired it to a plug and plugged it into an 120 volt outlet and it worked

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fusorx (author)2011-03-20

Thanks for the help, but I don't have a 555 timer so any other ideas?

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7654321 (author)fusorx2011-03-20

Yeah, find an astable circuit such as this one and stick your buzzer to the outputs. You probably want to lower the capacitance of the circuit I gave you to make it faster.

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fusorx (author)76543212011-03-21

Thanks and where is the output there, sorry I'm not very good at this

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7654321 (author)fusorx2011-03-21

In that circuit, connect the positive side of your buzzer straight to a power supply, and the negative to where the leds are (just take them and the 1K resistors out)

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fusorx (author)2011-03-20

Nacho, do you know of an easy way to get low voltage AC then?
Thanks

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NachoMahma (author)fusorx2011-03-20

. It doesn't have to be a sinusoidal AC wave - a square, triangle, saw, &c wave will make noise. A 555, as mentioned by others, should do the trick quite well.

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rickharris (author)2011-03-20

It's possibly not a buzzer but just the Piezio element - Needs an oscillator - 555 is a good call.

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7654321 (author)2011-03-19

Make a 555 timer circuit set to a fairly high frequency and connect it to your buzzer

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