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Recently I bought several piezo buzzers and I decided to make something cool with them and Raspberry Pi 3. The final result is a funny version of the Imperial March, aka Dart Vader's theme, from Star Wars. Actually it is really easy and you can do the same with any model or version of Raspberry Pi.
Both examples from the video are written in the C programming language. They are open source and the source code is available in GitHub under the MIT license. Step by step guidelines are available at instructables.
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