Create displayio_ssd1306_64x32_simpletest.py

To simplify testing on those tiny screen.

Author: dglaude

examples/displayio_ssd1306_64x32_simpletest.py

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+# SPDX-FileCopyrightText: 2022 David Glaude (based on 2021 ladyada for Adafruit Industries)
+# SPDX-License-Identifier: MIT
+
+"""
+This test will initialize the display using displayio and draw a solid white
+background, a smaller black rectangle, and some white text.
+Customized version of displayio_ssd1306_simpletest.py for 64x32
+"""
+
+import board
+import displayio
+import terminalio
+from adafruit_display_text import label
+import adafruit_displayio_ssd1306
+
+displayio.release_displays()
+
+i2c = board.I2C() # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C() # For using the built-in STEMMA QT connector on a microcontroller
+
+display_bus = displayio.I2CDisplay(i2c, device_address=0x3C)
+display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=64, height=32)
+
+# Make the display context
+splash = displayio.Group()
+display.show(splash)
+
+color_bitmap = displayio.Bitmap(64, 32, 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(62, 30, 1)
+inner_palette = displayio.Palette(1)
+inner_palette[0] = 0x000000 # Black
+
+inner_sprite = displayio.TileGrid(inner_bitmap, pixel_shader=inner_palette, x=1, y=1)
+splash.append(inner_sprite)
+
+text = "Hello"
+text_area = label.Label( terminalio.FONT, text=text, color=0xFFFFFF, x=2, y=6)
+splash.append(text_area)
+
+text = "World"
+text_area = label.Label( terminalio.FONT, text=text, color=0xFFFFFF, x=32, y=15)
+splash.append(text_area)
+
+text = "9876543210"
+text_area = label.Label( terminalio.FONT, text=text, color=0xFFFFFF, x=2, y=24)
+splash.append(text_area)
+
+while True:
+ pass