685Views10Replies

Author Options:

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?

Discussions

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

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

0
user
fusorx

7 years ago

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

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.

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

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)

0
user
fusorx

7 years ago

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

. 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.

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

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