Short description: The "bulbs" inside the stars are assembled using a ws2812b strip glued to a tube. (12 strips a 12 leds). Each "bulb" is controled by a seperate hyperiond (12x12 matrix conf) using an arduino. The hyperiond's are controlled via iobroker (a nodejs home automation environment) through their json api using an selfwritten adapter (github). Alexa integration is a "iobroker" feature. (Cloud adapter) not yet finished...
