led_matrix.py

from RPi.GPIO import *
import time

setmode(BCM)
setwarnings(False)

# Physical Pins: 
low_pins = 

# Physocal Pins: 
high_pins = 

all = []

for i in all:
    setup(i, OUT)
    
def make_all(param):
    for i in all:
        output(i, param)

num_led = 8

layout = [[0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0],
          [0, 0, 0, 0, 0, 0, 0, 0]]


def glow_boundary(bound):
    """
    This assumes boundary is square
    """
    global layout
    temp = len(layout) - 1
    print temp
    for i in range(len(layout)):
        for j in range(len(layout[0])):	
            layout[bound][j] = 1
            layout[temp - i][temp - bound] = 1
            layout[i][bound] = 1
            layout[temp - bound][temp - j] = 1

def glow_led_for_layout(layout):
    for i in range(len(layout)):
        for j in range(len(layout)):
            if layout[i][j] == 1:
                output(high_array[i], HIGH)
                output(low_array[j], LOW)

def main():
    for i in range(0, len(layout), -1):
        # Make changes to the global layout
        glow_boundary(i)
        # Now make the led's glow according to the layout.
        glow_led_for_layout(layout):
        time.sleep(1)