Inside an SP002E pixel controller (with schematic)

This is a very minimalist controller for WS2811 and WS2812B style addressable LEDs.
It lets you choose an effect and speed, and will then run that effect whenever powered. Basically a fit-and-forget LED controller that could be ideal for signage, effects and costumes.

Although most of the dirty work is done by a microcontroller, the support circuitry is quite interesting, largely because of the use of a discrete voltage regulator. The module will run from 5V to 24V.

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