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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

piezo

  1. B

    Extremely loud and small buzzer

    I am looking for an extremely loud buzzer for a personal project. I'm looking for something that is about 130 db at the source. Ideally, I would like to find something like what is used in all the personal defense keychains. The buzzer needs to be small and the voltage needs to be less than 20...
  2. F

    Building a Piezo hydrophone

    Hey guys this is my first pose here :) . So i need to build a hydrophone for a project, to pick up sound in the audible range inside an aquarium ( preferably 1khz to 20khz or maybe 1khz to 10khz) , I just need to receive very simple waves to measure their attenuation ( maybe sine waves or...
  3. J

    Piezo Differential Drive: Via Software or Hardware?

    My Arduino project is a level indicator that uses a Piezo transducer. I've used the "tone" function to manipulate the sound to raise the pitch when the desired level is reached. With the 'tone' function I can very precisely control the pitch and speed of the speaker. However, the project runs...

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