micro:bit maracas with microBlocks
What you get below:
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materials list
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sample code
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extension idea
Materials list
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microBlocks (free download)
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micro:bit $17.50
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mi:sound board from Kitronik $6.50
Using microBlocks to program maracas
Attaching the speaker with alligator/crocodile clips

Extension idea: Attach your micro:bits to gloves using rubber bands or Velcro. Then, wave your hands around to make music.