# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
# SPDX-License-Identifier: MIT
import board
import neopixel
from adafruit_pixel_framebuf import PixelFramebuffer, VERTICAL
pixel_pin = board.D6
pixel_width = 32
pixel_height = 8
pixels = neopixel.NeoPixel(
pixel_pin,
pixel_width * pixel_height,
brightness=0.1,
auto_write=False,
)
pixel_framebuf = PixelFramebuffer(pixels,
pixel_width,
pixel_height,
orientation=VERTICAL,
rotation=2)
pixel_framebuf.fill(0x000088)
pixel_framebuf.pixel(2, 1, 0xFFFF00)
pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
pixel_framebuf.line(0, pixel_height - 1, pixel_width - 1, 0, 0x00FF00)
pixel_framebuf.circle(pixel_width // 2 - 1, pixel_height // 2 - 1, 4, 0xFF0000)
pixel_framebuf.rect(1, 2, 8, pixel_height - 3, 0xFF00FF)
pixel_framebuf.display()
PURPLE = (180, 0, 255)
TWINKLEY = (255, 255, 255)
OFF = (0, 0, 0)
# Setup Dotstar grid and pixel framebuffer for fancy animations
pixel_width = 8
pixel_height = 8
num_pixels = pixel_width * pixel_height
pixels = adafruit_dotstar.DotStar(board.A1,
board.A2,
num_pixels,
auto_write=False,
brightness=0.1)
pixel_framebuf = PixelFramebuffer(pixels,
pixel_width,
pixel_height,
rotation=1,
alternating=False,
reverse_x=True)
# Fancy animations from https://learn.adafruit.com/circuitpython-led-animations
rainbow_chase = RainbowChase(pixels, speed=0.1, size=3, spacing=6, step=8)
chase = Chase(pixels, speed=0.1, color=CYAN, size=3, spacing=6)
rainbow_comet = RainbowComet(pixels,
speed=0.1,
tail_length=5,
bounce=True,
colorwheel_offset=170)
def scroll_framebuf_neg_x(word, color, shift_x, shift_y):
pixel_framebuf.fill(0)
color_int = int('0x%02x%02x%02x' % color, 16)
"""
This example runs on an Adafruit Dotstar Feather
"""
import board
import adafruit_dotstar
from adafruit_pixel_framebuf import PixelFramebuffer
pixel_pin = board.D6
pixel_width = 12
pixel_height = 6
pixels = adafruit_dotstar.DotStar(
board.D13,
board.D11,
pixel_width * pixel_height,
brightness=0.3,
auto_write=False,
)
pixel_framebuf = PixelFramebuffer(
pixels,
pixel_width,
pixel_height,
alternating=False,
)
pixel_framebuf.fill(0x000088)
pixel_framebuf.pixel(5, 1, 0xFFFF00)
pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
pixel_framebuf.display()
from adafruit_pixel_framebuf import PixelFramebuffer
pixel_pin = board.D6
pixel_width = 16
pixel_height = 16
pixels = neopixel.NeoPixel(
pixel_pin,
pixel_width * pixel_height,
brightness=0.1,
auto_write=False,
)
pixel_framebuf = PixelFramebuffer(
pixels,
pixel_width,
pixel_height,
reverse_x=True,
)
text = "Welcome to CircuitPython"
while True:
for i in range(6 * len(text) + pixel_width):
pixel_framebuf.fill(0x000088)
pixel_framebuf.pixel(2, 1, 0x00FFFF)
pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
pixel_framebuf.line(0, pixel_width - 1, pixel_height - 1, 0, 0x00FF00)
pixel_framebuf.fill_rect(2, 3, 12, 10, 0x000000)
pixel_framebuf.text(text, pixel_width - i, 4, 0xFFFF00)
pixel_framebuf.rect(1, 2, 14, 12, 0xFF0000)
pixel_framebuf.line(0, 2, 0, 14, 0x000088)
print("WiFi secrets are kept in secrets.py, please add them there!")
raise
AIO_USERNAME = secrets["aio_username"]
AIO_KEY = secrets["aio_key"]
# LED matrix creation
PIXELS = neopixel.NeoPixel(
PIXEL_PIN,
PIXEL_WIDTH * PIXEL_HEIGHT,
brightness=0.5,
auto_write=False,
)
PIXEL_FRAMEBUF = PixelFramebuffer(PIXELS,
PIXEL_WIDTH,
PIXEL_HEIGHT,
alternating=True,
rotation=1,
reverse_x=True)
# Adafruit.io feeds setup
QUOTE_FEED = "sign-quotes.signtext"
COLOR_FEED = "sign-quotes.signcolor"
CURRENT_TEXT = "Merry Christmas!"
CURRENT_COLOR = 0xFFFFFF
# Helper function to get updated data from Adafruit.io
def update_data():
global CURRENT_TEXT, CURRENT_COLOR
print("Updating data from Adafruit IO")
try:
from adafruit_pixel_framebuf import PixelFramebuffer
pixel_pin = board.D18
pixel_width = 16
pixel_height = 16
pixels = neopixel.NeoPixel(
pixel_pin,
pixel_width * pixel_height,
brightness=0.1,
auto_write=False,
)
pixel_framebuf = PixelFramebuffer(
pixels,
pixel_width,
pixel_height,
reverse_x=True,
)
# Make a black background in RGBA Mode
image = Image.new("RGBA", (pixel_width, pixel_height))
# Open the icon
icon = Image.open("blinka_16x16.png")
# Alpha blend the icon onto the background
image.alpha_composite(icon)
# Convert the image to RGB and display it
pixel_framebuf.image(image.convert("RGB"))
pixel_framebuf.display()
