from machine import Pin
import time
ds=Pin(27,Pin.OUT)
latch=Pin(14,Pin.OUT)
shift=Pin(12,Pin.OUT)
 # def sl():
#   shift.off()
#   shift.on()
  
#   latch.off()
#   latch.on()
#   time.sleep_ms(500)

  
# latch.off()
# latch.on()
# time.sleep_ms(500)

# for i in range (7):
#     ds.value(0)
#     shift.off()
#     shift.on()
  
#     latch.off()
#     latch.on()
#     time.sleep_ms(500)


while 1:
  ds.value(0)
  shift.off()
  shift.on() 

  latch.off()
  latch.on()
  time.sleep_ms(600)
  
  ds.value(1)
  shift.off()
  shift.on() 

  latch.off()
  latch.on()
  time.sleep_ms(600)