# Controls a strip of 12 LEDs connected to GP0.

#This imports the Pin class, which lets you control the Raspberry Pi Pico’s GPIO pins.
#You need this because NeoPixels require a digital output pin (like GP0) to send data.
from machine import Pin

#This loads the NeoPixel driver library.
#It gives you the NeoPixel class with methods like:

#np[i] = (r, g, b) — set one LED
#np.fill((r, g, b)) — set all LEDs
#np.write() — send the data to the strip

#Without this import, you can’t talk to the LEDs.
import neopixel

#This gives you access to timing functions like time.sleep(). 
#This allows us to keep the LEDs on or off for a set time.
import time