My girlfriend is studying beekeeping, and so I was inspired to make a jar full of bees. It is a jar with a Circuit Playground Express, a lipo battery, and a slide switch inside of it. I would have added an external set of speakers so that it could produce an even louder, more obnoxious buzzing, but they had not arrived by the time I was building this project.
The way that the jar works is simple. There is a switch coming out of the lid, which when flipped on, activates a repeating buzzing sound. When the switch is flipped back off, the buzzing ceases. When the jar is shook, the "bees" become agitated, and the circuit playground express begins flashing yellow and buzzing significantly louder.
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