Adafruit_Neopixel library problem

hello
i encountered problem adafruit_neopixel library, because reading pixel (getpixelcolor (1)) , rewriting (.setpixelcolor (1, x)) gives following result.
the pixel changes color , stopped.
this due method of calculating pixel value brightness (if result not integer).
it preferable luminosity of calculation sent pixels, if possible within time given electronics.
herewith, test loop verifies result

uint32_t base = pixel.color(232, 125, 64);
pixel.setbrightness(254);
pixel.setpixelcolor(1,base);
pixel.show();
while(1 == 1) {;
debseq = millis();                                               
uint32_t tampon = pixel.getpixelcolor(1);                                         // lit la couleur du dernier pixel
      pixel.setpixelcolor(1,tampon);
pixel.show();
finseq = millis();
 }

bring problem adafruit
thank you

quote

bring problem adafruit

you need that. not adafruit forum. have one.

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