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Play music on software (or hardware!) synthesizers using the 8x4 button grid, and control pitch bend and mod wheel by tilting the Trellis M4
Do you have a HalloWing left over from Halloween? If you have a left over black cat as well, this is the project for you!
This device has many names: function generator, waveform generator, and signal generator. As we all know... you can't stop the signal.
Scare someone with a rubber spider or roach dropped right in front of their face! HalloWing with a PIR sensor and servo motor do your scaring for you!
You can turn a milk jug into a light diffusing, screaming, inner-lit skull filled with HalloWing-driven NeoPixels
Use one pair of glasses for normal, bright, and dark conditions, controlled by a Circuit Playground Express