"Miniature Candle Spins for Volumetric Display Fun"

[mitxela] has created a tiny volumetric "electric candle" display using the persistence of vision concept. The display, made from salvaged parts including a motor from a CD drive, features an 8x10 array of surface-mount LEDs controlled by an RP2040 microcontroller. The project also includes a 3D-printed holder for a sensor and explores generating volumetric data and fluid dynamics calculations for a realistic flame effect.