from machine import Pin
from neopixel import NeoPixel
from time import sleep
from math import sin, pi

NUM_LEDS=64

d = 256//NUM_LEDS

pixels = NeoPixel(Pin(2), NUM_LEDS)

dd=0

while True:
  for i in range(NUM_LEDS/4+1):
    pixels[i] = (255,dd,0)
    pixels[NUM_LEDS//2-i] = (255,dd,0)
    pixels[NUM_LEDS//2+i] = (255,dd,0)
    pixels[-i] = (255,dd,0)
    pixels.write()  
  #sleep(0.1)
  dd=dd+10*d

while True:
  for i in range(NUM_LEDS):
    for j in range(0,256,16):
      pixels[i] = (240-j,dd,0)
      pixels.write()  
    for j in range(0,256,16):
      pixels[i] = (240-j,dd,0)
      pixels.write()  
  #sleep(0.1)
  dd=dd+d


red=green=blue=40
while True:
  for i in range(NUM_LEDS):
    red = red + 30
    if red>255:
      red = 40
    green = green + 50
    if green>255:
      green = 40
    blue = blue + 40
    if blue>255:
      blue = 40
    color=(red,green,blue)
    print(color, end="")
    pixels[i] = color
    pixels.write()
    print(sin(i*2*pi/NUM_LEDS))
    sleep(0.15+0.15*sin(i*2*pi/NUM_LEDS))