WS2812-RGB-LED-Ring WS2812 RGB LED Ring animation using stm32f103RB Dimensions: Ring diameter: 90 mm height with led: 4 mm PCB thickness: 1.5 mm operation conditions: VCC: 5 V Data: 3.3 V stm32f103RBT6 PA8 as data connected to ws2812 data Input Signal sample with time stamp: