# CIRC05 Shift register


import board
import adafruit_74hc595
import busio
import digitalio
import time

print("SCK  " + str(board.SCK))
print("MOSI " + str(board.MOSI))

spi = busio.SPI(board.SCK, MOSI=board.MOSI)
#spi = busio.SPI(board.D3, MOSI=board.D2)

latch_pin = digitalio.DigitalInOut(board.D5)
#latch_pin = digitalio.DigitalInOut(board.D4)
sr = adafruit_74hc595.ShiftRegister74HC595(spi, latch_pin)

pin0 = sr.get_pin(0)
pin1 = sr.get_pin(1)
pin2 = sr.get_pin(2)

while True:
  pin0.value = True
  time.sleep(1)
  pin1.value = True
  time.sleep(1)
  pin2.value = True
  time.sleep(1)

  pin2.value = False
  time.sleep(1)
  pin1.value = False
  time.sleep(1)
  pin0.value = False
  time.sleep(1)

  print("looping")