Adafruit Feather M4 Express Manual page 127

led = neopixel.NeoPixel(board.NEOPIXEL, 1)
to so it reads:
10
led = neopixel.NeoPixel(board.NEOPIXEL, 10)
This tells the code to look for 10 LEDs instead of only 1. Now save the code and watch the rainbow go! You can make
the same to change to the previous examples as well, and use
1 10
chose! For more details, check out the
© Adafruit Industries
.
NeoPixel section of the CPX guide
https://learn.adafruit.com/adafruit-feather-m4-express-atsamd51
to light up all the LEDs in the colors you
led.fill
(https://adafru.it/Bem)!
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