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1 vote
2 answers
1k views

Interface Piezoelectric wafer buzzer with microcontroller

Can piezo-buzzer be interfaced with MCU same as normal 5V continuous buzzer? I am talking about the flat thinnest buzzer like this. We need to feed PWM to this to create different tones right? If ...
Vishal P's user avatar
  • 358
0 votes
2 answers
825 views

Do I need to isolate the power to buzzer circuit from other sensitive circuit?

I am planning to add a buzzer circuit, which will share the power plane with a micro-controller. Do I need to add a choke or so to isolate the two components? If so, how should I do it? Thanks in ...
jsmith's user avatar
  • 689
3 votes
2 answers
1k views

Piezoelectric transducer drive circuit

I have a small (1/2"sq.) thin film piezoelectric transducer that I would like to use to test the frequency response of musical instruments. I want to be able to stick it on to any instrument , send a ...
Fred Paine's user avatar