Onboard QT-Py neo_pixel blinking doesn't play along my TC5 software IRQ

[lutzray]

I checked the Adafruit_NeoPixel source and I didn't find why these don't work together (I'm a noob)... so now i'm using your Adafruit_NeoPixel_ZeroDMA instead... And it is working ok, see my [RESOLVED] last post on this Adafruit Forum thread QT-Py M0 NeoPixel library interfering with TC5 where the offending code is referenced.