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
Learn all about home automation by building a cardboard smart-house, controlling its lights, and monitoring temperature!
Add a dazzling color display to your Feather project with this Adafruit Mini Color TFT with Joystick FeatherWing.
Use a 60 NeoPixel ring and Feather M0 to build this stylish clock with options for music, BLE, infrared, and touch controls.