This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
Latest Version Dependencies status unknown Test status unknown Test coverage unknown
Project Description

A Python module for controlling power and brightness of the official Raspberry Pi 7” touch display.

Features

  • Change the display brightness smoothly or abrupt
  • Set the display power on or off
  • Get the current brightness
  • Get the maximum brightness
  • Get the display power state (on/off)
  • Command line interface
  • Graphical user interface

Requirements

  • A Raspberry Pi including a correctly assembled 7” touch display v1.1 or higher running a Linux-based OS
  • Python 2 or 3
  • Optional: pygobject for the GUI, is likely to be already installed on a recent Raspbian

Installation

  • Install from PyPI using:

    pip install rpi_backlight
    
  • or clone this repository and install by:

    sudo python setup.py install
    

Note: You may need to edit the backlight rules file in order to run the code:

sudo nano /etc/udev/rules.d/backlight-permissions.rules

Insert the line:

SUBSYSTEM=="backlight",RUN+="/bin/chmod 666 /sys/class/backlight/%k/brightness /sys/class/backlight/%k/bl_power"

Usage

API

Example in a Python shell:

>>> import rpi_backlight as bl
>>> bl.set_brightness(20)
>>> bl.set_brightness(255)
>>> bl.set_brightness(20, smooth=False)
>>> bl.get_max_brightness()
255
>>> bl.get_current_brightness()
20
>>> bl.get_power()
True
>>> bl.set_power(False)

NOTE: Code using set_ functions of this library has to be run as root, e.g. sudo python file.py !

CLI

Open a terminal and run rpi-backlight as root.

GUI

Open a terminal and run rpi-backlight-gui as root.

Todo

  • Allow to set the brightness fading duration in set_brightness(value)
  • (Create a really simple GUI in pygobject to change the display brightness, maybe just a scale/slider)
    • Most of it done, but not tested across several Python versions and distros
    • Ensure it runs on the Pi under both Python 2 and 3

I would be happy if you can help shortening this todo-list!

License

The source code and all other files in this repository are licensed under the MIT license, so you can easily use it in your own projects.

Release History

Release History

1.5.0

This version

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1.4.0

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1.3.1

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1.3.0

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1.2.1

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1.2.0

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1.1.0

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1.0.0

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
rpi_backlight-1.5.0.tar.gz (4.3 kB) Copy SHA256 Checksum SHA256 Source Jan 15, 2017

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