Adafruit HT16K33 LED matrix backpack test for Raspberry Pi

eye_test_01.py

import board
import busio
import time
from random import random

from adafruit_ht16k33 import matrix

# Initialize LED matrix
i2c = busio.I2C(board.SCL, board.SDA)
eye =matrix.Matrix8x8(i2c)

# Single animation frame
frame = [
    [0,0,1,1,1,1,0,0],
    [0,1,1,1,1,1,1,0],
    [1,1,1,1,1,1,1,1],
    [1,1,1,0,0,1,1,1],
    [1,1,1,0,0,1,1,1],
    [1,1,1,1,1,1,1,1],
    [0,1,1,1,1,1,1,0],
    [0,0,1,1,1,1,0,0]
]

# Clear matrix
eye.fill(0)

# Loop forever
while True:
  
  # Clear matrix
  eye.fill(0)
  
  # Wait for 1 second
  time.sleep(1.0)
  
  # Show frame
  for y in range(len(frame)):
    for x in range(len(frame[y])):
      eye[y, x] = frame[x][y]
  eye.show()
      
  # Wait for 1 second
  time.sleep(1.0)