Title: Hello HN, these Mini Trees have a custom circuit board with WS2812 addressable LEDs on one side and a controller using an RP2040 microcontroller on the other, all inside a CNC&#x27;d Foamex PVC case. They stand around 23cm (9&quot;) tall.<p>The firmware is written in MicroPython, which can be modified or replaced. Power is provided via USB-C, which is also used for programming.<p>There is also a web-based animation sequencer to create lighting sequences in time to arbitrary audio, examples of which are on the linked page. This is similar to xLights (<a href="https:&#x2F;&#x2F;xlights.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;xlights.org&#x2F;</a>), but much less powerful, and we hope to release firmware to interface directly with xLights soon.<p>My colleague and I started kicking the idea for these around after making some custom circuit boards for another project, and thought we&#x27;d have a go at making smaller versions of some much larger exhibits we had made using 12 volt WS1812 bullet pixels.<p>I hope you enjoy them, Merry Christmas!
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