sanya.py

import time
import analogio
import board
import neopixel
import math


dial_pin = board.A2 #pin 0 is Analog input 2
dial = analogio.AnalogIn(dial_pin)

pixel_pin = board.D2
num_pixels = 16
pixels = neopixel.NeoPixel(pixel_pin, num_pixels, brightness=0.5, auto_write=False)

ONE = (252, 0, 184)
TWO = (189, 5, 245)
THREE = (113, 5, 255)
OFF = (0,0,0)

while True:
    time.sleep(0.2)
    #print((math.sqrt(dial.value,)))
    val = int(math.sqrt(dial.value)-20) #scale down potentiometer values to fit within color range
    print(val)
    if(val<28):
        pixels.fill(ONE)
        pixels.show()
    if(56>val>28):
        pixels.fill(TWO)
        pixels.show()
    if(84>val>56):
        pixels.fill(THREE)
        pixels.show()
    if(val>84):
        pixels.fill(OFF)
        pixels.show()