Simple test

Ensure your device works with this simple test.

examples/pixel_framebuf_simpletest.py
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# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
# SPDX-License-Identifier: MIT
"""
This example runs on an Adafruit NeoPixel Feather
"""
import board
import neopixel
from adafruit_pixel_framebuf import PixelFramebuffer

pixel_pin = board.D6
pixel_width = 8
pixel_height = 4

pixels = neopixel.NeoPixel(
    pixel_pin,
    pixel_width * pixel_height,
    brightness=0.1,
    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()
examples/pixel_framebuf_dotstar_simpletest.py
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# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
# SPDX-License-Identifier: MIT
"""
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()

Other Examples

Some other examples for using this library

examples/pixel_framebuf_32x8_test.py
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# 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()
examples/pixel_framebuf_16x16_animation.py
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# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
# SPDX-License-Identifier: MIT
import board
import neopixel
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)
        pixel_framebuf.line(pixel_width - 1, 2, pixel_width - 1, 14, 0x000088)
        pixel_framebuf.display()