Python tools to simplify working with the Raspberry Pi and it's GPIO port. All source code in this repository is released under the MIT license.
Extension of RPi.GPIO which can handle interrupts. Works with Python 2.x and 3.x. The easiest way to install RPIO is via pip or easy_install:
sudo easy_install -U RPIO
This project has a new home: https://github.com/metachris/RPIO
gpiodaemon.py
Socket daemon which can handle scheduled task management (run a command in
seconds, eg. to turn something off after a certain amount of time), and
accepts user defined commands (eg. led on instead of set 17 HIGH). Custom
commands and pin setup are defined in config.yaml. The deamon listens on
port 9101. Requires the tornado and
pyyaml.
rpi_detect_model.py
Detects a Raspberry's model and manufacturer, and makes the attributes easily accessible.
sdbackup.sh
Backup boot and root partition of a linux SD card into .tar files.
Interrupts
Interrupts can be used to receive notifications from the kernel when GPIO state
changes occur. This has the advantages of requiring almost zero cpu consumption
and very fast notification times, as well as allowing to easily monitor
specific transitions via edge='rising|falling|both'. Here is an example:
import RPIO
def do_something(gpio_id, value):
print("New value for GPIO %s: %s" % (gpio_id, value))
RPIO.add_interrupt_callback(17, do_something, edge='rising')
RPIO.add_interrupt_callback(18, do_something, edge='falling')
RPIO.add_interrupt_callback(19, do_something, edge='both')
RPIO.wait_for_interrupts()
Links
- http://pypi.python.org/pypi/RPi.GPIO
- http://www.kernel.org/doc/Documentation/gpio.txt
- Raspberry Pi Revision Identification
Feedback
Chris Hager ([email protected])