A module to control Raspberry Pi GPIO channels
This package provides a class to control the GPIO on a Raspberry Pi.
Note that this module is unsuitable for real-time or timing critical applications. This is because you can not predict when Python will be busy garbage collecting. It also runs under the Linux kernel which is not suitable for real time applications - it is multitasking O/S and another process may be given priority over the CPU, causing jitter in your program. If you are after true real-time performance and predictability, buy yourself an Arduino http://www.arduino.cc !
Note that the current release does not support SPI, I2C, hardware PWM or serial functionality on the RPi yet. This is planned for the near future - watch this space! One-wire functionality is also planned.
Although hardware PWM is not available yet, software PWM is available to use on all channels.
For examples and documentation, visit http://sourceforge.net/p/raspberry-gpio-python/wiki/Home/
Issue 68 - support for RPi Model B+
Issue 52 - ‘unallocate’ a channel
Issue 35 - use switchbounce with GPIO.event_detected()
Refactored events code
Rewrote tests to use unittest mechanism and new test board with loopbacks
Fixed adding events after a GPIO.cleanup()
Issue 64 - misleading /dev/mem permissions error
Issue 59 - name collision with PWM constant and class
Changed release status (from alpha to full release)
Warn when GPIO.cleanup() used with nothing to clean up (issue 44)
Avoid collisions in constants (e.g. HIGH / RISING / PUD_DOWN)
Accept BOARD numbers in gpio_function (issue 34)
More return values for gpio_function (INPUT, OUTPUT, SPI, I2C, PWM, SERIAL, UNKNOWN)
Tidy up docstrings
Fix /dev/mem access error with gpio_function
Allow pydoc for non-root users (issue 27)
Fix add_event_detect error when run as daemon (issue 32)
Simplified exception types
Changed from distribute to pip
Added software PWM (experimental)
Added switch bounce handling to event callbacks
Added channel number parameter to event callbacks (issue 31)
Internal refactoring and code tidy up
Fixed callbacks for multiple GPIOs (issue 28)
Added new edge detection events (interrupt handling) - Added add_event_detect() - Added remove_event_detect() - Added add_event_callback() - Added wait_for_edge()
Removed old experimental event functions - Removed set_rising_event() - Removed set_falling_event() - Removed set_high_event() - Removed set_low_event()
Changed event_detected() for new edge detection functionality
input() now returns 0/LOW == False or 1/HIGH == True (integers) instead of False or True (booleans).
Fix error on repeated import (issue 3)
Change SetupException to a RuntimeError so it can be caught on import (issue 25, Chris Hager <email@example.com>)
Improved docstrings of functions
Fix for installing on Arch Linux (Python 3.3) (issue 20)
Initial value when setting a channel as an output (issue 19)
Permit input() of channels set as outputs (Eric Ptak <firstname.lastname@example.org>)
Added support for Revision 2 boards
Added cleanup() function and removed automatic reset functionality on program exit
Added get_function() to read existing GPIO channel functionality (suggestion from Eric Ptak <email@example.com>)
Converted debian to armhf
Fixed C function short_wait() (thanks to Thibault Porteboeuf <firstname.lastname@example.org>)
Fixed critical bug with swapped high/low state on outputs
Added pull-up / pull-down setup functionality for inputs
Rewritten as a C extension
Now uses /dev/mem and SoC registers instead of /sys/class/gpio
Make call to GPIO.setmode() mandatory
Added GPIO.HIGH and GPIO.LOW constants
Changed status from alpha to beta
Added setmode() to be able to use BCM GPIO 00.nn channel numbers
Renamed InvalidPinException to InvalidChannelException
Fixed direction bug
Added MANIFEST.in (to include missing file)
Changed GPIO channel number to pin number
Tested and working!
Added GPIO table
Fixed a few critical bugs
Still completely untested!
Internal refactoring. Still completely untested!
First version. Completely untested until I can get hold of a Raspberry Pi!
Release history Release notifications | RSS feed
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.