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microbit_pov_daisy.py
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"""
microbit_pov_daisy.py
https://www.instructables.com/Microbit-Persistence-of-Vision-Daisy
Part of "micro:bit Persistence-of-Vision daisy"
Copyright 2021 Pavlos Iliopoulos, techprolet.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/ .
"""
from microbit import *
import utime
# total rotation time is 200000us
wait_time = 200000
rotations_step = 2 # allow two rotations TODO: Find better naming
daisyImg = [
Image(
5,
5,
bytearray(
[0, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 0]
),
),
Image(
5,
5,
bytearray(
[0, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0]
),
),
Image(
5,
5,
bytearray(
[0, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
),
),
Image(
5,
5,
bytearray(
[0, 0, 0, 0, 9, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
),
),
Image(
5,
5,
bytearray(
[0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
),
),
]
display.on()
imgSize = len(daisyImg)
i = 0
rotations = 0
while True:
rotations += 1
rotations %= rotations_step
if rotations == 0:
display.show(daisyImg[i])
i += 1
i %= imgSize
utime.sleep_us(wait_time)