"""Given two (R,G,B) color tuples and a blend ratio (0.0 to 1.0),
interpolate between the two colors and return a gamma-corrected
in-between color as a packed 24-bit RGB integer. No bounds clamping
is performed on blend value, be nice."""
inv = 1.0 - blend # Weighting of second color
return gammify([color1[x] * blend + color2[x] * inv for x in range(3)])
# HARDWARE SETUP -----------------------
# Manually declare I2C (not board.I2C() directly) to access 1 MHz speed...
i2c = I2C(board.SCL, board.SDA, frequency=1000000)
# Initialize the IS31 LED driver, buffered for smoother animation
glasses = LED_Glasses(i2c, allocate=adafruit_is31fl3741.MUST_BUFFER)
glasses.show() # Clear any residue on startup
glasses.global_current = 20 # Just middlin' bright, please
# INITIALIZE TABLES & OTHER GLOBALS ----
# This table is for mapping 3x3 averaged bitmap values (0-9) to
# RGB colors. Avoids a lot of shift-and-or on every pixel.
colormap = []
for n in range(10):
colormap.append(gammify([n / 9 * eye_color[x] for x in range(3)]))
# Pre-compute the Y position of 1/2 of the LEDs in a ring, relative
# to the 3X bitmap resolution, so ring & matrix animation can be aligned.
y_pos = []
for n in range(13):
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
import board
from rainbowio import colorwheel
from adafruit_is31fl3741.adafruit_ledglasses import LED_Glasses
import adafruit_is31fl3741
glasses = LED_Glasses(board.I2C(), allocate=adafruit_is31fl3741.MUST_BUFFER)
wheeloffset = 0
while True:
for i in range(24):
hue = colorwheel(i * 256 // 24 + wheeloffset)
glasses.right_ring[i] = hue
glasses.left_ring[23 - i] = hue
glasses.show()
wheeloffset += 10
""" import time import board from busio import I2C import adafruit_is31fl3741 from adafruit_is31fl3741.adafruit_ledglasses import LED_Glasses from eyelights_anim import EyeLightsAnim # HARDWARE SETUP ----------------------- i2c = I2C(board.SCL, board.SDA, frequency=1000000) # Initialize the IS31 LED driver, buffered for smoother animation glasses = LED_Glasses(i2c, allocate=adafruit_is31fl3741.MUST_BUFFER) glasses.show() # Clear any residue on startup glasses.global_current = 20 # Just middlin' bright, please # ANIMATION SETUP ---------------------- # Two indexed-color BMP filenames are specified: first is for the LED matrix # portion, second is for the LED rings -- or pass None for one or the other # if not animating that part. The two elements, matrix and rings, share a # few LEDs in common...by default the rings appear "on top" of the matrix, # or you can optionally pass a third argument of False to have the rings # underneath. There's that one odd unaligned pixel between the two though, # so this may only rarely be desirable. anim = EyeLightsAnim(glasses, "matrix.bmp", "rings.bmp") # MAIN LOOP ----------------------------