luma.core | luma.docs | luma.emulator | luma.examples | luma.lcd | luma.led_matrix | luma.oled
This is the companion repo for running examples against the luma.emulator, luma.oled, luma.lcd and luma.led_matrix display drivers.
Assuming you are using a Raspberry Pi (running Debian Jessie or newer), follow the pre-requisites & instructions in the above repositories to wire up your display, then from a command-line:
$ sudo usermod -a -G i2c,spi,gpio pi $ sudo apt install python3-dev python3-pip libfreetype6-dev libjpeg-dev build-essential $ sudo apt install libsdl-dev libportmidi-dev libsdl-ttf2.0-dev libsdl-mixer1.2-dev libsdl-image1.2-dev
Log out and in again and clone this repository:
$ git clone https://github.com/rm-hull/luma.examples.git $ cd luma.examples
Finally, install the luma libraries using:
$ sudo -H pip install -e .
After cloning the repository, enter the examples directory and try running
one of the following examples listed below. For example:
cd examples python3 3d_box.py
| Example | Description |
|---|---|
| 3d_box.py | Rotating 3D box wireframe & color dithering |
| animated_gif.py | Renders an animated GIF |
| bitstamp_ticker.py | Display the Bitcoin price at Bitstamp |
| bitstamp_realtime.py | Displays the latest Bitcoin trades in realtime at Bitstamp |
| bounce.py | Display a bouncing ball animation and frames per second |
| carousel.py | Showcase viewport and hotspot functionality |
| chroma.py | Trippy color rendering demo |
| clock.py | An analog clockface with date & time |
| colors.py | Color rendering demo |
| crawl.py | A vertical scrolling demo, which should be familiar |
| demo.py | Use misc draw commands to create a simple image |
| dotmatrixtool.py | Simple demo showing how to integrate output from http://dotmatrixtool.com |
| font_awesome.py | A meander through some awesome fonts |
| game_of_life.py | Conway's game of life |
| greyscale.py | Greyscale rendering demo |
| image_composition.py | Displays different song titles and scrolls them back and forth |
| invaders.py | Space Invaders demo |
| jetset_willy.py | Sprite animation framework demo |
| larson_hue.py | Alpha blending color demo |
| matrix.py | The Matrix |
| maze.py | Maze generator |
| perfloop.py | Simple benchmarking utility to measure performance |
| picamera_photo.py | Capture photo with picamera and display it on a screen |
| picamera_video.py | Capture continuous video stream and display it on a screen |
| pi_logo.py | Display the Raspberry Pi logo (loads image as .png) |
| runner.py | Sprite animation framework demo |
| savepoint.py | Example of savepoint/restore functionality |
| scrolling_pixelart.py | Image dithering and viewport scrolling |
| sprite_animation.py | Using sprite maps for animation effects |
| starfield.py | 3D starfield simulation |
| sys_histogram.py | Display system information including a rolling histogram |
| sys_info.py | Display basic system information |
| terminal.py | Simple println capabilities |
| tv_snow.py | Example image-blitting |
| tweet_scroll.py | Using Twitter's Streaming API to display scrolling notifications |
| video.py | Display a video clip |
| weather.py | 3-day weather forecasts from the BBC |
| welcome.py | Unicode font rendering & scrolling |
By default, all the examples will asume I2C port 1, address 0x3C and the
ssd1306 driver. If you need to use a different setting, these can be
specified on the command line – each program can be invoked with a --help
flag to show the options:
$ python3 examples/demo.py --help
usage: demo.py [-h] [--config CONFIG] [--display DISPLAY] [--width WIDTH]
[--height HEIGHT] [--rotate ROTATION] [--interface INTERFACE]
[--i2c-port I2C_PORT] [--i2c-address I2C_ADDRESS]
[--spi-port SPI_PORT] [--spi-device SPI_DEVICE]
[--spi-bus-speed SPI_BUS_SPEED]
[--spi-transfer-size SPI_TRANSFER_SIZE]
[--spi-cs-high SPI_CS_HIGH] [--ftdi-device FTDI_DEVICE]
[--framebuffer-device FRAMEBUFFER_DEVICE] [--gpio GPIO]
[--gpio-mode GPIO_MODE]
[--gpio-data-command GPIO_DATA_COMMAND]
[--gpio-chip-select GPIO_CHIP_SELECT]
[--gpio-reset GPIO_RESET] [--gpio-backlight GPIO_BACKLIGHT]
[--gpio-reset-hold-time GPIO_RESET_HOLD_TIME]
[--gpio-reset-release-time GPIO_RESET_RELEASE_TIME]
[--block-orientation ORIENTATION] [--mode MODE]
[--framebuffer FRAMEBUFFER] [--num-segments NUM_SEGMENTS]
[--bgr] [--inverse] [--h-offset H_OFFSET]
[--v-offset V_OFFSET] [--backlight-active VALUE] [--debug]
[--transform TRANSFORM] [--scale SCALE] [--duration DURATION]
[--loop LOOP] [--max-frames MAX_FRAMES]
luma.examples arguments
optional arguments:
-h, --help show this help message and exit
General:
--config CONFIG, -f CONFIG
Load configuration settings from a file (default:
None)
--display DISPLAY, -d DISPLAY
Display type, supports real devices or emulators.
Allowed values are: ssd1306, ssd1309, ssd1322,
ssd1362, ssd1322_nhd, ssd1325, ssd1327, ssd1331,
ssd1351, sh1106, ws0010, winstar_weh, pcd8544, st7735,
ht1621, uc1701x, st7567, ili9341, ili9486, hd44780,
max7219, ws2812, neopixel, neosegment, apa102,
unicornhathd, capture, gifanim, pygame, asciiart,
asciiblock, linux_framebuffer (default: ssd1306)
--width WIDTH Width of the device in pixels (default: 128)
--height HEIGHT Height of the device in pixels (default: 64)
--rotate ROTATION, -r ROTATION
Rotation factor. Allowed values are: 0, 1, 2, 3
(default: 0)
--interface INTERFACE, -i INTERFACE
Interface type. Allowed values are: i2c, noop, spi,
gpio_cs_spi, bitbang, ftdi_spi, ftdi_i2c, pcf8574,
bitbang_6800 (default: i2c)
I2C:
--i2c-port I2C_PORT I2C bus number (default: 1)
--i2c-address I2C_ADDRESS
I2C display address (default: 0x3C)
SPI:
--spi-port SPI_PORT SPI port number (default: 0)
--spi-device SPI_DEVICE
SPI device (default: 0)
--spi-bus-speed SPI_BUS_SPEED
SPI max bus speed (Hz) (default: 8000000)
--spi-transfer-size SPI_TRANSFER_SIZE
SPI bus max transfer unit (bytes) (default: 4096)
--spi-cs-high SPI_CS_HIGH
SPI chip select is high (gpio_cs_spi driver only)
(default: False)
FTDI:
--ftdi-device FTDI_DEVICE
FTDI device (default: ftdi://::/1)
Linux framebuffer:
--framebuffer-device FRAMEBUFFER_DEVICE
Linux framebuffer device (default: /dev/fd0)
GPIO:
--gpio GPIO Alternative RPi.GPIO compatible implementation (SPI
interface only) (default: None)
--gpio-mode GPIO_MODE
Alternative pin mapping mode (SPI interface only)
(default: None)
--gpio-data-command GPIO_DATA_COMMAND
GPIO pin for D/C RESET (SPI interface only) (default:
24)
--gpio-chip-select GPIO_CHIP_SELECT
GPIO pin for Chip select (GPIO_CS_SPI interface only)
(default: 24)
--gpio-reset GPIO_RESET
GPIO pin for RESET (SPI interface only) (default: 25)
--gpio-backlight GPIO_BACKLIGHT
GPIO pin for backlight (PCD8544, ST7735 devices only)
(default: 18)
--gpio-reset-hold-time GPIO_RESET_HOLD_TIME
Duration to hold reset line active on startup
(seconds) (SPI interface only) (default: 0)
--gpio-reset-release-time GPIO_RESET_RELEASE_TIME
Duration to pause for after reset line was made active
on startup (seconds) (SPI interface only) (default: 0)
Misc:
--block-orientation ORIENTATION
Fix 90° phase error (MAX7219 LED matrix only). Allowed
values are: 0, 90, -90, 180 (default: 0)
--mode MODE Colour mode (SSD1322, SSD1325 and emulator only).
Allowed values are: 1, RGB, RGBA (default: RGB)
--framebuffer FRAMEBUFFER
Framebuffer implementation (SSD1331, SSD1322, ST7735,
ILI9341 displays only). Allowed values are:
diff_to_previous, full_frame (default:
diff_to_previous)
--num-segments NUM_SEGMENTS
Sets the number of segments to when using the diff-to-
previous framebuffer implementation. (default: 4)
--bgr Set if LCD pixels laid out in BGR (ST7735 displays
only). (default: False)
--inverse Set if LCD has swapped black and white (ST7735
displays only). (default: False)
--h-offset H_OFFSET Horizontal offset (in pixels) of screen to display
memory (ST7735 displays only). (default: 0)
--v-offset V_OFFSET Vertical offset (in pixels) of screen to display
memory (ST7735 displays only). (default: 0)
--backlight-active VALUE
Set to "low" if LCD backlight is active low, else
"high" otherwise (PCD8544, ST7735 displays only).
Allowed values are: low, high (default: low)
--debug Set to enable debugging. (default: False)
Emulator:
--transform TRANSFORM
Scaling transform to apply (emulator only). Allowed
values are: identity, led_matrix, none, scale2x,
seven_segment, smoothscale (default: scale2x)
--scale SCALE Scaling factor to apply (emulator only) (default: 2)
--duration DURATION Animation frame duration (gifanim emulator only)
(default: 0.01)
--loop LOOP Repeat loop, zero=forever (gifanim emulator only)
(default: 0)
--max-frames MAX_FRAMES
Maximum frames to record (gifanim emulator only)
(default: None)
Note
python3-dev(apt-get) andpsutil(pip/pip3) are required to run thesys_info.pyexample. See install instructions for the exact commands to use.
There are various display emulators available for running code against, for debugging and screen capture functionality:
- The luma.emulator.device.capture device will persist a numbered PNG file to
disk every time its
displaymethod is called. - The luma.emulator.device.gifanim device will record every image when its
displaymethod is called, and on program exit (or Ctrl-C), will assemble the images into an animated GIF. - The luma.emulator.device.pygame device uses the pygame library to render the displayed image to a pygame display surface.
Invoke the demos with:
$ python3 examples/clock.py --display capture
or:
$ python3 examples/clock.py --display pygame
Full documentation with installation instructions can be found in:
- https://luma-oled.readthedocs.io
- https://luma-lcd.readthedocs.io
- https://luma-led-matrix.readthedocs.io
- https://luma-core.readthedocs.io
- https://luma-emulator.readthedocs.io
The MIT License (MIT)
Copyright (c) 2017-2020 Richard Hull & Contributors
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.