led = neopixel.NeoPixel(board.NEOPIXEL, 1)
to 10 so it reads:
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 1 to 10 change to the previous examples as well, and use led.fill to light up all the LEDs in the colors you
chose! For more details, check out the NeoPixel section of the CPX guide (https://adafru.it/Bem)!