# https://wokwi.com/projects/428919476603747329

import max7219
from machine import Pin,SPI
import time

j = None


spi0=SPI(0,baudrate=10000000, polarity=1, phase=0, sck=Pin((2)), mosi=Pin((3)))
cs = Pin((5), Pin.OUT)
matrix = max7219.Matrix8x8(spi0, cs , 4)

for j in range(1, 201):
  matrix.fill(0)
  matrix.show()
  matrix.text((f"%04d"%j), 0, 0, 1)
  matrix.show()
  time.sleep_ms(200)