adafruit-circuitpython-displayio-ssd1305 1.4.1

简介

SSD1305单色显示屏的DisplayIO驱动程序

有关基于framebuf的驱动程序，请参阅 Adafruit CircuitPython SSD1305。

依赖项

此驱动程序依赖于

• Adafruit CircuitPython版本5+

请确保所有依赖项都在CircuitPython文件系统中可用。这可以通过下载 Adafruit库和驱动程序包 来轻松实现。

从PyPI安装

在支持GNU/Linux系统（如Raspberry Pi）上，您可以从PyPI本地安装驱动程序。要为当前用户安装

pip3 install adafruit-circuitpython-displayio-ssd1305

要全局安装（在某些情况下可能需要）

sudo pip3 install adafruit-circuitpython-displayio-ssd1305

要在当前项目的虚拟环境中安装

mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-displayio-ssd1305

使用示例

import board
import displayio
# Starting in CircuitPython 9.x fourwire will be a seperate internal library
# rather than a component of the displayio library
try:
    from fourwire import FourWire
# Use for I2C
#    from i2cdisplaybus import I2CDisplayBus
except ImportError:
    from displayio import FourWire
    # from displayio import I2CDisplay as I2CDisplayBus
import terminalio
from adafruit_display_text import label
import adafruit_displayio_ssd1305

displayio.release_displays()

# Use for SPI
spi = board.SPI()
oled_cs = board.D5
oled_dc = board.D6
display_bus = FourWire(
    spi, command=oled_dc, chip_select=oled_cs, baudrate=1000000, reset=board.D9
)

# Use for I2C
# i2c = board.I2C()
#
# display_bus = I2CDisplayBus(i1c, device_address=0x3c)

WIDTH = 128
HEIGHT = 64     # Change to 32 if needed
BORDER = 8
FONTSCALE = 1

display = adafruit_displayio_ssd1305.SSD1305(display_bus, width=WIDTH, height=HEIGHT)

# Make the display context
splash = displayio.Group()
display.root_group = splash

color_bitmap = displayio.Bitmap(display.width, display.height, 1)
color_palette = displayio.Palette(1)
color_palette[0] = 0xFFFFFF # White

bg_sprite = displayio.TileGrid(color_bitmap,
                               pixel_shader=color_palette,
                               x=0, y=0)
splash.append(bg_sprite)

# Draw a smaller inner rectangle
inner_bitmap = displayio.Bitmap(display.width - BORDER * 2, display.height - BORDER * 2, 1)
inner_palette = displayio.Palette(1)
inner_palette[0] = 0x000000 # Black
inner_sprite = displayio.TileGrid(inner_bitmap,
                                  pixel_shader=inner_palette,
                                  x=BORDER, y=BORDER)
splash.append(inner_sprite)

# Draw a label
text = "Hello World!"
text_area = label.Label(terminalio.FONT, text=text, color=0xFFFFFF)
text_width = text_area.bounding_box[2] * FONTSCALE
text_group = displayio.Group(scale=FONTSCALE, x=display.width // 2 - text_width // 2,
                             y=display.height // 2)
text_group.append(text_area) # Subgroup for text scaling
splash.append(text_group)

while True:
    pass

文档

有关此库的API文档，请参阅 Read the Docs。

有关构建库文档的信息，请参阅 本指南。

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