67 lines
2 KiB
Python
67 lines
2 KiB
Python
"""
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This test will initialize the display using displayio and draw a solid white
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background, a smaller black rectangle, and some white text.
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"""
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import board
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import displayio
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import terminalio
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from adafruit_display_text import label
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import adafruit_displayio_ssd1305
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displayio.release_displays()
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# Reset is usedfor both SPI and I2C
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oled_reset = board.D9
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# Use for SPI
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spi = board.SPI()
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oled_cs = board.D5
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oled_dc = board.D6
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display_bus = displayio.FourWire(spi, command=oled_dc, chip_select=oled_cs,
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baudrate=1000000, reset=oled_reset)
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# Use for I2C
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# i2c = board.I2C()
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# display_bus = displayio.I2CDisplay(i2c, device_address=0x3c, reset=oled_reset)
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WIDTH = 128
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HEIGHT = 64 # Change to 32 if needed
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BORDER = 8
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FONTSCALE = 1
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display = adafruit_displayio_ssd1305.SSD1305(display_bus, width=WIDTH, height=HEIGHT)
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# Make the display context
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splash = displayio.Group(max_size=10)
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display.show(splash)
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color_bitmap = displayio.Bitmap(display.width, display.height, 1)
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color_palette = displayio.Palette(1)
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color_palette[0] = 0xFFFFFF # White
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bg_sprite = displayio.TileGrid(color_bitmap,
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pixel_shader=color_palette,
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x=0, y=0)
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splash.append(bg_sprite)
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# Draw a smaller inner rectangle
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inner_bitmap = displayio.Bitmap(display.width - BORDER * 2, display.height - BORDER * 2, 1)
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inner_palette = displayio.Palette(1)
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inner_palette[0] = 0x000000 # Black
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inner_sprite = displayio.TileGrid(inner_bitmap,
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pixel_shader=inner_palette,
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x=BORDER, y=BORDER)
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splash.append(inner_sprite)
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# Draw a label
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text = "Hello World!"
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text_area = label.Label(terminalio.FONT, text=text, color=0xFFFFFF)
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text_width = text_area.bounding_box[2] * FONTSCALE
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text_group = displayio.Group(max_size=10, scale=FONTSCALE, x=display.width // 2 - text_width // 2,
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y=display.height // 2)
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text_group.append(text_area) # Subgroup for text scaling
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splash.append(text_group)
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while True:
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pass
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