circuitPython/colorswirl.py

   1 # SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
   2 # SPDX-License-Identifier: MIT
   3
   4 import board
   5 from rainbowio import colorwheel
   6
   7 from adafruit_is31fl3741.adafruit_rgbmatrixqt import Adafruit_RGBMatrixQT
   8 import adafruit_is31fl3741
   9
  10 i2c = board.I2C()  # uses board.SCL and board.SDA
  11 # i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
  12 is31 = Adafruit_RGBMatrixQT(i2c, allocate=adafruit_is31fl3741.PREFER_BUFFER)
  13 is31.set_led_scaling(10)
  14 is31.global_current = 50
  15 # print("Global current is: ", is31.global_current)
  16 is31.enable = True
  17 # print("Enabled? ", is31.enable)
  18
  19 wheeloffset = 0
  20 while True:
  21     for y in range(9):
  22         for x in range(13):
  23             is31.pixel(x, y, colorwheel((y * 13 + x) * 2 + wheeloffset))
  24     wheeloffset += 1
  25     is31.show()