Display bitmap file on SSD1306/SSD1315 OLED using Raspberry Pi Pico W and CircuitPython

code.py

#
# Display bitmap file on SSD1315 OLED using Raspberry Pi Pico W and CircuitPython
#
# References and credit to
# - https://tutorial.cytron.io/2021/12/21/display-image-on-the-graphic-lcd-using-maker-nano-rp2040-and-circuitpython/
#
# Raspberry Pi Pico W
# - [Maker Pi Pico Mini] https://my.cytron.io/p-maker-pi-pico-mini-simplifying-projects-with-raspberry-pi-pico
# Arduino Grove Sensor Kit for Beginner, OR
# - https://my.cytron.io/p-arduino-grove-sensor-kit-for-beginner
# Grove - OLED Display 0.96 inch
# - https://my.cytron.io/p-grove-oled-display-0p96-inch-ssd1315
#
# Additional Libraries
# - adafruit_bus_device
# - adafruit_display_text
# - adafruit_displayio_ssd1306.mpy
#
# Update:
# 6 Nov 2022 - Tested with CircuitPython Pico W 8.0.0-beta.4
#

import time
import board
import busio
import displayio
import terminalio
from adafruit_display_text import label
import adafruit_displayio_ssd1306

displayio.release_displays()

i2c_oled = busio.I2C(scl=board.GP5, sda=board.GP4)
display_bus = displayio.I2CDisplay(i2c_oled, device_address=0x3C)
display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=128, height=64, rotation=180)

# Open the file
with open("/Cytron.bmp", "rb") as bitmap_file:

    # Setup the file as the bitmap data source
    bitmap = displayio.OnDiskBitmap(bitmap_file)

    # Create a TileGrid to hold the bitmap
    tile_grid = displayio.TileGrid(
        bitmap,
        pixel_shader = getattr(
            bitmap,
            'pixel_shader',
            displayio.ColorConverter()
        )
    )

    # Create a Group to hold the TileGrid
    group = displayio.Group()

    # Add the TileGrid to the Group
    group.append(tile_grid)

    # Add the Group to the Display
    display.show(group)
    
    print("Done!")
    
    # Loop forever so you can enjoy your image
    while True:
        pass