# MAX7219 driver for micropython, Turns on at low light environment
# by Davood Hakemi @ElectroHakemi

from machine import SPI, Pin
from max7219 import Matrix8x8
from time import sleep_ms

IsMotionDetected = Pin(13)

max_clk = const(18)
max_din = const(23)
max_cs = const(5)

spi = SPI(2)

display = Matrix8x8(spi, Pin(5), 4)

display.brightness(10)

text = 'ElectroHakemi'
        
distance = len(text) * 8

# loop
while True:
    # is motion detected?
    if IsMotionDetected():
        for i in range(distance):
            # display scrolling text
            display.text(text, -i) 
            sleep_ms(30)