from machine import Pin,PWM
from utime import sleep_ms
from neopixel import NeoPixel
np=NeoPixel(Pin(22),16)
def tone(buzzer_pin, freq, time):
    buzzer = PWM(Pin(14), freq=freq, duty=512)
    sleep_ms(time)
    buzzer.deinit()


   
for i in range(16):
  tone(12, 700, 400)
  np[i]=255,0,0
  tone(12, 400, 200)
  np.write()
  sleep_ms(100)
  np[i]=0,255,0
  tone(12, 200, 600)
  np.write()
  sleep_ms(200)
  np[i]=0,0,255
  tone(12, 770, 300)
  np.write()
  sleep_ms(100)