Simple test

Ensure your device works with this simple test.

examples/pixel_framebuf_simpletest.py
 1# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3"""
 4This example runs on an Adafruit NeoPixel Feather
 5"""
 6import board
 7import neopixel
 8from adafruit_pixel_framebuf import PixelFramebuffer
 9
10pixel_pin = board.D6
11pixel_width = 8
12pixel_height = 4
13
14pixels = neopixel.NeoPixel(
15    pixel_pin,
16    pixel_width * pixel_height,
17    brightness=0.1,
18    auto_write=False,
19)
20
21pixel_framebuf = PixelFramebuffer(
22    pixels,
23    pixel_width,
24    pixel_height,
25    alternating=False,
26)
27
28pixel_framebuf.fill(0x000088)
29pixel_framebuf.pixel(5, 1, 0xFFFF00)
30pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
31pixel_framebuf.display()
examples/pixel_framebuf_dotstar_simpletest.py
 1# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3"""
 4This example runs on an Adafruit Dotstar Feather
 5"""
 6import board
 7import adafruit_dotstar
 8from adafruit_pixel_framebuf import PixelFramebuffer
 9
10pixel_pin = board.D6
11pixel_width = 12
12pixel_height = 6
13
14pixels = adafruit_dotstar.DotStar(
15    board.D13,
16    board.D11,
17    pixel_width * pixel_height,
18    brightness=0.3,
19    auto_write=False,
20)
21
22pixel_framebuf = PixelFramebuffer(
23    pixels,
24    pixel_width,
25    pixel_height,
26    alternating=False,
27)
28
29pixel_framebuf.fill(0x000088)
30pixel_framebuf.pixel(5, 1, 0xFFFF00)
31pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
32pixel_framebuf.display()

Other Examples

Some other examples for using this library

examples/pixel_framebuf_32x8_test.py
 1# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3import board
 4import neopixel
 5from adafruit_pixel_framebuf import PixelFramebuffer, VERTICAL
 6
 7pixel_pin = board.D6
 8pixel_width = 32
 9pixel_height = 8
10
11pixels = neopixel.NeoPixel(
12    pixel_pin,
13    pixel_width * pixel_height,
14    brightness=0.1,
15    auto_write=False,
16)
17
18pixel_framebuf = PixelFramebuffer(
19    pixels, pixel_width, pixel_height, orientation=VERTICAL, rotation=2
20)
21
22pixel_framebuf.fill(0x000088)
23pixel_framebuf.pixel(2, 1, 0xFFFF00)
24pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
25pixel_framebuf.line(0, pixel_height - 1, pixel_width - 1, 0, 0x00FF00)
26pixel_framebuf.circle(pixel_width // 2 - 1, pixel_height // 2 - 1, 4, 0xFF0000)
27pixel_framebuf.rect(1, 2, 8, pixel_height - 3, 0xFF00FF)
28pixel_framebuf.display()
examples/pixel_framebuf_16x16_animation.py
 1# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3import board
 4import neopixel
 5from adafruit_pixel_framebuf import PixelFramebuffer
 6
 7pixel_pin = board.D6
 8pixel_width = 16
 9pixel_height = 16
10
11pixels = neopixel.NeoPixel(
12    pixel_pin,
13    pixel_width * pixel_height,
14    brightness=0.1,
15    auto_write=False,
16)
17
18pixel_framebuf = PixelFramebuffer(
19    pixels,
20    pixel_width,
21    pixel_height,
22    reverse_x=True,
23)
24
25text = "Welcome to CircuitPython"
26
27while True:
28    for i in range(6 * len(text) + pixel_width):
29        pixel_framebuf.fill(0x000088)
30        pixel_framebuf.pixel(2, 1, 0x00FFFF)
31        pixel_framebuf.line(0, 0, pixel_width - 1, pixel_height - 1, 0x00FF00)
32        pixel_framebuf.line(0, pixel_width - 1, pixel_height - 1, 0, 0x00FF00)
33        pixel_framebuf.fill_rect(2, 3, 12, 10, 0x000000)
34        pixel_framebuf.text(text, pixel_width - i, 4, 0xFFFF00)
35        pixel_framebuf.rect(1, 2, 14, 12, 0xFF0000)
36        pixel_framebuf.line(0, 2, 0, 14, 0x000088)
37        pixel_framebuf.line(pixel_width - 1, 2, pixel_width - 1, 14, 0x000088)
38        pixel_framebuf.display()