Check out the latest guide from Erin St. Blaine: build a sunflower themed hanging baby crib mobile with NeoPixels and a Circuit Playground Bluefruit. The Circuit Playground’s onboard sound sensors in combination with CircuitPython’s LED Animations Library make it fun and easy to add sound reactive modes, so the mobile reacts when the baby coos, and animates along with your lullaby.
From the guide:
Make a beautiful hanging mobile with lights for your nursery. This mobile is so cute and so much fun that older kids and adults will definitely enjoy it as well.
The included sample code has around 8 different animated color modes that you can control via bluetooth using Adafruit’s free BlueFruit app. It also has a sound reactive mode, where the lights will pulse in time to music or voices in the room.
This is a fairly easy build that requires just a little bit of tight soldering on the LED strip. The sunflowers are made from craft foam and felt that you can cut by hand or with a vinyl cutting machine. This project uses just a half-meter of very high density NeoPixels, making for gorgeously buttery smooth animations.
Plus, you’ll put a Circuit Playground Bluefruit into the hands of the younger generation and start inspiring them to love animated lights from a very young age. That’s always a win, in my book.
Full tutorial: https://learn.adafruit.com/sound-reactive-sunflower-baby-crib-mobile-with-bluetooth-control
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