So, after about 3 days of trial and error, I’ve finally arrived at a basic implementation of driving a 12 led NeoPixel ring with my STM32F411 platform and a PWM / DMA setup. I honestly can’t totally take all the credit here – a last ditch Google AI search finally got the leds lighting up. I will obviously need to refactor the logic into its own helper class and whatnot, but this is satisfactory for the current moment to move forward with the rest of the UI implementation. Thank You, Jesus!