from machine import Pin
import utime

ledpin0=Pin(0,Pin.OUT)

while True:
  ledpin0.value(1)
  utime.sleep(0.25)
  ledpin0.value(0)
  utime.sleep(0.25)

  ledpin0.value(1)
  utime.sleep(0.25)
  ledpin0.value(0)
  utime.sleep(0.25)

  ledpin0.value(1)
  utime.sleep(0.25)
  ledpin0.value(0)
  utime.sleep(0.5)

  ledpin0.value(1)
  utime.sleep(1)
  ledpin0.value(0)
  utime.sleep(1)

  ledpin0.value(1)
  utime.sleep(1)
  ledpin0.value(0)
  utime.sleep(1)

  ledpin0.value(1)
  utime.sleep(1)
  ledpin0.value(0)
  utime.sleep(0.5)

  ledpin0.value(1)
  utime.sleep(0.25)
  ledpin0.value(0)
  utime.sleep(0.25)

  ledpin0.value(1)
  utime.sleep(0.25)
  ledpin0.value(0)
  utime.sleep(0.25)

  ledpin0.value(1)
  utime.sleep(0.25)
  ledpin0.value(0)
  utime.sleep(2)