from machine import Pin, SPI
import max7219
import time

spi = SPI(0, baudrate=10000000, polarity=1, phase=0, sck=Pin(2), mosi=Pin(3))
ss = Pin(5, Pin.OUT)

display = max7219.Matrix8x8(spi, ss, 4)
display.brightness(1)
scrolling_message = "Next Station : Thane, Destination CSMT !!"
length = len(scrolling_message)
column = (length * 8)

display.fill(0)
display.show()
time.sleep(1)

while True:
    for x in range(32, -column, -1):    
        display.fill(0)
        display.text(scrolling_message ,x,0,1)
        display.show()
        time.sleep(0.05)

main.py

diagram.json

from machine import Pin, SPI
import max7219
import time

# Setup SPI communication with max7219 LED matrix
spi = SPI(0, baudrate=10000000, polarity=1, phase=0, sck=Pin(2), mosi=Pin(3))
ss = Pin(5, Pin.OUT)  # Chip select pin

# Initialize a 4-unit 8x8 LED matrix
display = max7219.Matrix8x8(spi, ss, 4)
display.brightness(1)  # Set brightness level to 1

# Message to scroll on the LED matrix
scrolling_message = "Next Station : GTB, Destination CSMT !!"
length = len(scrolling_message)
column = (length * 8)  # Calculate the pixel width of the message

display.fill(0)  # Clear the display
display.show()
time.sleep(1)  # Wait for 1 second before starting

# Infinite loop to scroll the message
while True:
    for x in range(32, -column, -1):  # Scroll from right to left
        display.fill(0)  # Clear the display
        display.text(scrolling_message, x, 0, 1)  # Display the message
        display.show()  # Update the display
        time.sleep(0.05)  # Pause for a short time to control scrolling speed
