box_breathing.py

from enum import Enum
from sense_hat import SenseHat
import time


s = SenseHat()


class Color(Enum):
    BLANK = (0, 0, 0)
    RED = (255, 0, 0)


class Screen(object):

    O = Color.BLANK.value
    blank_screen = [
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
        O, O, O, O, O, O, O, O,
  ]

    def get_next(self, n):
        c = list(self.blank_screen)
        c[n-1] = Color.RED.value
        return c



screen = Screen()

images = [
  screen.get_next(1),
  screen.get_next(2),
  screen.get_next(3),
  screen.get_next(4),
  screen.get_next(5),
  screen.get_next(6),
  screen.get_next(7),
]
count = 0

if __name__ == '__main__':
    while True:
        s.set_pixels(images[count % len(images)])
        time.sleep(4.0/7.0)
        if (count % 7) == 6:
            s.set_rotation((s.rotation + 90) % 360)
        count += 1