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__NOTOC__
The RPi.GPIO Python library allows you to easily configure and read-write the input/output pins on the Pi’s GPIO header within a Python script. Thankfully this library is now including in the standard Raspbian image available from the [https://www.raspberrypi.com/software/ Foundations Download Page].
If you are using a fresh image you don’t need to install it but I’ve kept the instructions here in case you ever want to try a manually installation. <ref>https://www.raspberrypi-spy.co.uk/2012/05/install-rpi-gpio-python-library/</ref>
==== Method 1 – Install from repository ====
If the package exists in the Raspbian repository is can be installed using apt-get. First you need to update the available package versions:
sudo apt-get update
Then attempt to install the RPi.GPIO package :
sudo apt-get install rpi.gpio
If it isn’t already installed it will be installed. If it is already installed it will be upgraded if a newer version is available.
==== Method 2 – Manual Installation ====
The package is available from '''http://pypi.python.org/pypi/RPi.GPIO''' and the current version is 0.7.1 (Feb 6, 2022). '''If this version is updated you will need to make appropriate changes to the version number in the commands below'''.
===== Step 1 – Download the library =====
wget https://files.pythonhosted.org/packages/c4/0f/10b524a12b3445af1c607c27b2f5ed122ef55756e29942900e5c950735f2/RPi.GPIO-0.7.1.tar.gz
Step 2 – Extract the archive to a new folder'''
tar -xvf RPi.GPIO-0.7.1.tar.gz
===== Step 3 – Browse to the new directory =====
cd RPi.GPIO-0.7.1
===== Step 4 – Install the library =====
sudo python setup.py install
===== Step 5 – Remove the directory and archive file =====
cd ~
sudo rm -rf RPi.GPIO-0.*
This will now mean you can use the library within Python.
===== Example Usage =====
<syntaxhighlight lang="python" line >
import RPi.GPIO as GPIO
# to use Raspberry Pi board pin numbers
GPIO.setmode(GPIO.BOARD)
# set up the GPIO channels - one input and one output
GPIO.setup(11, GPIO.IN)
GPIO.setup(12, GPIO.OUT)
# input from pin 11
input_value = GPIO.input(11)
# output to pin 12
GPIO.output(12, GPIO.HIGH)
# the same script as above but using BCM GPIO 00..nn numbers
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)
GPIO.setup(18, GPIO.OUT)
input_value = GPIO.input(17)
GPIO.output(18, GPIO.HIGH)
</syntaxhighlight>
==References==
<references />
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<!--Please choose the -->
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[[Category:Raspberry pi]]
[[Category:Knowledge]]
The RPi.GPIO Python library allows you to easily configure and read-write the input/output pins on the Pi’s GPIO header within a Python script. Thankfully this library is now including in the standard Raspbian image available from the [https://www.raspberrypi.com/software/ Foundations Download Page].
If you are using a fresh image you don’t need to install it but I’ve kept the instructions here in case you ever want to try a manually installation. <ref>https://www.raspberrypi-spy.co.uk/2012/05/install-rpi-gpio-python-library/</ref>
==== Method 1 – Install from repository ====
If the package exists in the Raspbian repository is can be installed using apt-get. First you need to update the available package versions:
sudo apt-get update
Then attempt to install the RPi.GPIO package :
sudo apt-get install rpi.gpio
If it isn’t already installed it will be installed. If it is already installed it will be upgraded if a newer version is available.
==== Method 2 – Manual Installation ====
The package is available from '''http://pypi.python.org/pypi/RPi.GPIO''' and the current version is 0.7.1 (Feb 6, 2022). '''If this version is updated you will need to make appropriate changes to the version number in the commands below'''.
===== Step 1 – Download the library =====
wget https://files.pythonhosted.org/packages/c4/0f/10b524a12b3445af1c607c27b2f5ed122ef55756e29942900e5c950735f2/RPi.GPIO-0.7.1.tar.gz
Step 2 – Extract the archive to a new folder'''
tar -xvf RPi.GPIO-0.7.1.tar.gz
===== Step 3 – Browse to the new directory =====
cd RPi.GPIO-0.7.1
===== Step 4 – Install the library =====
sudo python setup.py install
===== Step 5 – Remove the directory and archive file =====
cd ~
sudo rm -rf RPi.GPIO-0.*
This will now mean you can use the library within Python.
===== Example Usage =====
<syntaxhighlight lang="python" line >
import RPi.GPIO as GPIO
# to use Raspberry Pi board pin numbers
GPIO.setmode(GPIO.BOARD)
# set up the GPIO channels - one input and one output
GPIO.setup(11, GPIO.IN)
GPIO.setup(12, GPIO.OUT)
# input from pin 11
input_value = GPIO.input(11)
# output to pin 12
GPIO.output(12, GPIO.HIGH)
# the same script as above but using BCM GPIO 00..nn numbers
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)
GPIO.setup(18, GPIO.OUT)
input_value = GPIO.input(17)
GPIO.output(18, GPIO.HIGH)
</syntaxhighlight>
==References==
<references />
<!--Add review function! -->
<comments />
<!--Please choose the -->
<!--Remove other categories, just keep the appropriate categories -->
[[Category:Raspberry pi]]
[[Category:Knowledge]]