# uncomment next line if you are using Pimoroni 11x7 LED Matrix Breakout
# from adafruit_is31fl3731.matrix_11x7 import Matrix11x7 as Display
# uncomment this line if you use a Pico, here with SCL=GP21 and SDA=GP20.
# i2c = busio.I2C(board.GP21, board.GP20)
i2c = busio.I2C(board.SCL, board.SDA)
# fmt: off
sweep = [ 1, 2, 3, 4, 6, 8, 10, 15, 20, 30, 40, 60,
60, 40, 30, 20, 15, 10, 8, 6, 4, 3, 2, 1, ]
# fmt: on
frame = 0
display = Display(i2c)
while True:
for incr in range(24):
# to reduce update flicker, use two frames
# make a frame active, don't show it yet
display.frame(frame, show=False)
# fill the display with the next frame
for x in range(display.width):
for y in range(display.height):
display.pixel(x, y, sweep[(x + y + incr) % 24])
# show the next frame
display.frame(frame, show=True)
if frame:
frame = 0
else:
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
import board
import busio
# uncomment next line if you are using Feather CharlieWing LED 15 x 7
from adafruit_is31fl3731.charlie_wing import CharlieWing as Display
# uncomment next line if you are using Adafruit 16x9 Charlieplexed PWM LED Matrix
# from adafruit_is31fl3731.matrix import Matrix as Display
# uncomment next line if you are using Adafruit 16x8 Charlieplexed Bonnet
# from adafruit_is31fl3731.charlie_bonnet import CharlieBonnet as Display
# uncomment next line if you are using Pimoroni Scroll Phat HD LED 17 x 7
# from adafruit_is31fl3731.scroll_phat_hd import ScrollPhatHD as Display
i2c = busio.I2C(board.SCL, board.SDA)
display = Display(i2c)
# draw a box on the display
# first draw the top and bottom edges
for x in range(display.width):
display.pixel(x, 0, 50)
display.pixel(x, display.height - 1, 50)
# now draw the left and right edges
for y in range(display.height):
display.pixel(0, y, 50)
display.pixel(display.width - 1, y, 50)
# uncomment next line if you are using Feather CharlieWing LED 15 x 7
from adafruit_is31fl3731.charlie_wing import CharlieWing as Display
# uncomment next line if you are using Adafruit 16x9 Charlieplexed PWM LED Matrix
# from adafruit_is31fl3731.matrix import Matrix as Display
# uncomment next line if you are using Adafruit 16x8 Charlieplexed Bonnet
# from adafruit_is31fl3731.charlie_bonnet import CharlieBonnet as Display
# uncomment next line if you are using Pimoroni Scroll Phat HD LED 17 x 7
# from adafruit_is31fl3731.scroll_phat_hd import ScrollPhatHD as Display
i2c = busio.I2C(board.SCL, board.SDA)
# array pattern in bits; top row-> bottom row, 8 bits in each row
an_arrow = bytearray((0x08, 0x0C, 0xFE, 0xFF, 0xFE, 0x0C, 0x08, 0x00, 0x00))
display = Display(i2c)
# first load the frame with the arrows; moves the an_arrow to the right in each
# frame
display.sleep(True) # turn display off while updating blink bits
display.fill(0)
for y in range(display.height):
row = an_arrow[y]
for x in range(8):
bit = 1 << (7 - x) & row
if bit:
display.pixel(x + 4, y, 50, blink=True)
display.blink(
1000) # ranges from 270 to 2159; smaller the number to faster blink
display.sleep(False) # turn display on
# uncomment next line if you are using Adafruit 16x8 Charlieplexed Bonnet
# from adafruit_is31fl3731.charlie_bonnet import CharlieBonnet as Display
# uncomment next line if you are using Pimoroni Scroll Phat HD LED 17 x 7
# from adafruit_is31fl3731.scroll_phat_hd import ScrollPhatHD as Display
# uncomment next line if you are using Pimoroni 11x7 LED Matrix Breakout
# from adafruit_is31fl3731.matrix_11x7 import Matrix11x7 as Display
# uncomment this line if you use a Pico, here with SCL=GP21 and SDA=GP20.
# i2c = busio.I2C(board.GP21, board.GP20)
i2c = busio.I2C(board.SCL, board.SDA)
# arrow pattern in bits; top row-> bottom row, 8 bits in each row
arrow = bytearray((0x08, 0x0C, 0xFE, 0xFF, 0xFE, 0x0C, 0x08, 0x00, 0x00))
display = Display(i2c)
# first load the frame with the arrows; moves the arrow to the right in each
# frame
display.sleep(True) # turn display off while frames are updated
for frame in range(display.width - 8):
display.frame(frame, show=False)
display.fill(0)
for y in range(display.height):
row = arrow[y]
for x in range(8):
bit = 1 << (7 - x) & row
# display the pixel into selected frame with varying intensity
if bit:
display.pixel(x + frame, y, frame ** 2 + 1)
display.sleep(False)