Hi
I need a small beeper, which just need to make a (annoying) sound. I was thinking about a dual comparator, one giving some 2KHZ, the other some 1,5Hz and mix those.
Is there a simpler way?
Small beeper
Aug 30, 2016
7 Replies
Don't be silly. Use a microcontroller.
--sp
Best regards,
Spehro Pefhany
Amazon link for AoE 3rd Edition: http://tinyurl.com/ntrpwu8
They make buzzers where you just apply DC and sound comes out.
formatting link
George H.
Even the ones without a circuit meet that description- but it's just a click.
--sp
Best regards,
Spehro Pefhany
Amazon link for AoE 3rd Edition: http://tinyurl.com/ntrpwu8
Sure, just takes a mosquito and a suitable adhesive, applied to your earlobe. It'd annoy me, anyhow.
Right, and with your micro-C it could play the theme from Cats, (or some other piece of music you find annoying. :^)
George H.
shifted up a few octaves. With no polyphony at all. Very nice.
NT
And under other headings, a small relay with the coil in series with its NC contacts will also annoy.
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