Microbit Code01:LEDs Animation: Difference between revisions
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Latest revision as of 13:53, 25 August 2022
from microbit import *
# LED Animation: 1 blank LED cycles through the microbit LED matrix
# Example of LED control strings
# first row LEDs to 100%, remaining to 0%
display.show(Image('99999:00000:00000:00000:00000'))
sleep(2000)
# 1st led from 1st row & last led from last row
display.show(Image('90000:00000:00000:00000:00009'))
sleep(2000)
# decreasing intensity across the rows of LEDs
display.show(Image('99999:77777:55555:33333:11111'))
sleep(2000)
def matrix2Image(l_of_l):
# desc: converts 5x5 matrix (list of lists) to Image string
# input: list of lists of ints
# [[9, 9, 9, 9, 9], [9, 9, 9, 9, 9], [9, 9, 9, 9, 9], [9, 9, 9, 9, 9], [9, 9, 9, 9, 0]]
# each list corresponding to a LED-row_list
# each int corresponding to LED
# values: 0 to 9 determine intensity
# output: '99999:99999:99999:99999:99990'
img_str = ""
for row_list in l_of_l:
row_list = [str(i) for i in row_list]
row_str = "".join(row_list)
img_str += row_str + ":"
return img_str
matrix = [[9] * 5 for i in range(5)] # list of list: matrix of LEDs
matrix_str = matrix2Image(matrix)
display.show(Image(matrix_str))
sleep(200)
# Animation loop
i = 0
while True:
i = i % len(matrix[0])
# i fow each row will be zero
for row in matrix:
row[i] = 0
matrix_str = matrix2Image(matrix)
display.show(Image(matrix_str))
sleep(15)
row[i] = 9
matrix_str = matrix2Image(matrix)
display.show(Image(matrix_str))
sleep(10)
i += 1
Code Notes 2019
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