Pi Powered Piezo Buzzer #piday #raspberrypi @Raspberry_Pi

via joyceJetson on instructables

I needed a module for a piezo buzzer that could do more than just beep – it had to multitask! I wanted to sound a quick alert when my air quality monitor picked up on too much particulate and play the right melody when my people detection system spotted either a friend or a foe.

So I created a reusable module that I can add to any of my current and future projects.

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