With this example, tailored to the PyGamer, you can have a portable picture frame. Put the BMP files in the main folder of your SD card, put the code below in code.py, and make sure you've configured mount_sd.py!
This example can be adapted to a lot of CircuitPython boards with support for displayio.
For more information on making bitmap files, check out this guide.
# SPDX-FileCopyrightText: 2020 Jeff Epler for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import os
import time
import board
import displayio
display = board.DISPLAY
# The bmp files on the sd card will be shown in alphabetical order
bmpfiles = sorted("/sd/" + fn for fn in os.listdir("/sd") if fn.lower().endswith("bmp"))
while True:
if len(bmpfiles) == 0:
print("No BMP files found")
break
for filename in bmpfiles:
print("showing", filename)
# CircuitPython 6 & 7 compatible
bitmap_file = open(filename, "rb")
bitmap = displayio.OnDiskBitmap(bitmap_file)
tile_grid = displayio.TileGrid(
bitmap,
pixel_shader=getattr(bitmap, 'pixel_shader', displayio.ColorConverter())
)
# # CircuitPython 7+ compatible
# bitmap = displayio.OnDiskBitmap(filename)
# tile_grid = displayio.TileGrid(bitmap, pixel_shader=bitmap.pixel_shader)
group = displayio.Group()
group.append(tile_grid)
display.root_group = group
# Show the image for 10 seconds
time.sleep(10)
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Page last edited January 22, 2025
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