We assume [Michelle]’s audio-reactive rib cage lamp turned out great, and the shots and specifics all over how it was built are equally wonderful. The lamp is produced of carved and waxed wooden, and within is a bundle of LED lights capable of a range of various shade palettes and designs, together with the capability to respond to audio. Each and every rib cage really should have a social gathering method, just after all.
Turns out that planning fantastic rib cage pieces is a even larger problem than one could think. [Michelle]’s technique was to use an anatomical 3D model as reference, tracing just about every piece so that it could be slash from a flat sheet of wooden.
The resulting flat parts then get assembled into a stack, with every single rib pointed downward at a approximately 20 degree angle. This course of action is a neat hack in by itself: as an alternative of drilling holes all at specifically the very same angle, [Michelle] just designed the holes twice the diameter of the metal rod they stack on. The final result? The pieces angle downward on their very own.
The LED lights is by itself a nice piece of get the job done. The fundamental construction arrives from soldered strong-core wire. The RGB LED strip will get wound all over that, then bolstered with back garden wire. The outcome is an atomic-seeking framework that sits inside of the rib cage. An ESP32 improvement board drives almost everything with the FastLED library.
Code for every little thing, such as the seem-reactive worky bits, which rely on an INMP441 I2C microphone module is all readily available on GitHub. And if you want to make your possess sound-reactive art, make sure to check out out these arms as very well.
Want to see the rib cage in motion? A quick demo movie is embedded beneath that demonstrates the seem reactivity. Equally applicable to possibly bash or relaxation modes, we feel.