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Piezo trigger Switch for a Virtual DrumKit Answered

Can anyone help me to make a piezo trigger switch to use with a keybaord to trigger the samples from my pc?
I got the idea from here
https://www.instructables.com/id/WORLDS-CHEAPEST-VIRTUAL-DRUM-at-10-Rs500-us/
(see step 6)
Thanks.

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mpilchfamily
mpilchfamily

6 years ago

You will need a comperator circuit to take the audio input from teh piezo and trigger a button press.

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joeyjerry
joeyjerry

Reply 6 years ago

But, how to do that?

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mpilchfamily
mpilchfamily

Reply 6 years ago

You Google Comperator circuit and start learning how they work and how they can trigger a transistor to. With a little effort you can find many similar projects where people use a piezo to trigger a keyboard action to make a cheap MIDI drum kit.