circuitPython/ledmatrixTest.py

   1 # SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
   2 # SPDX-License-Identifier: MIT
   3
   4 import time
   5 import board
   6 import adafruit_is31fl3741
   7
   8 i2c = board.I2C()  # uses board.SCL and board.SDA
   9 # i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
  10 is31 = adafruit_is31fl3741.IS31FL3741(i2c)
  11
  12 is31.set_led_scaling(0xFF)  # turn on LEDs all the way
  13 is31.global_current = 0xFF  # set current to max
  14 is31.enable = True  # enable!
  15
  16 # light up every LED, one at a time
  17 while True:
  18     for pixel in range(351):
  19         is31[pixel] = 255
  20         time.sleep(0.01)
  21         is31[pixel] = 0