Making sound can be fundamental to a lot of projects. Tom’s Hardware goes through the steps with a Pico!

Whether you’re building a game that beeps when you lose a turn, an alarm clock that wakes you up or just a cute display that plays 8-bit music, a low-cost piezo buzzer can be a great part of your Raspberry Pi Pico project. The extremely-cheap buzzers — you can often find them for less than $1 apiece — are dead-simple to program in MicroPython and can even vary the frequency to produce musical notes.

There are two types of piezo buzzers: active and passive. Active buzzers will make noise if they are just hooked up to power with no microcontroller involved while passive ones will not. Passive buzzers are preferred for this kind of project because they offer a better range of sounds, though in our testing, both worked.

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