Qwiic_GPIO_Py

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SparkFun Qwiic GPIO

Python module for the Qwiic GPIO

This package can be used in conjunction with the overall SparkFun qwiic Python Package

New to qwiic? Take a look at the entire SparkFun qwiic ecosystem.

Supported Platforms

The Qwiic GPIO Python package current supports the following platforms:

Dependencies

This driver package depends on the qwiic I2C driver: Qwiic_I2C_Py

Documentation

The SparkFun Qwiic GPIO module documentation is hosted at ReadTheDocs

Installation

PyPi Installation

This repository is hosted on PyPi as the sparkfun-qwiic-gpio package. On systems that support PyPi installation via pip, this library is installed using the following commands

For all users (note: the user must have sudo privileges):

sudo pip install sparkfun-qwiic-gpio

For the current user:

pip install sparkfun-qwiic-gpio

Local Installation

To install, make sure the setuptools package is installed on the system.

Direct installation at the command line:

python setup.py install

To build a package for use with pip:

python setup.py sdist

A package file is built and placed in a subdirectory called dist. This package file can be installed using pip.

cd dist
pip install sparkfun_qwiic_gpio-<version>.tar.gz

Example Use

See the examples directory for more detailed use examples.

from __future__ import print_function
import qwiic_gpio
import time
import sys

def runExample():

    print("\nSparkFun Qwiic GPIO Example 1\n")
    myGPIO = qwiic_gpio.QwiicGPIO()

    if myGPIO.isConnected() == False:
        print("The Qwiic GPIO isn't connected to the system. Please check your connection", \
            file=sys.stderr)
        return

    myGPIO.begin()
    myGPIO.mode_0 = myGPIO.GPIO_OUT
    myGPIO.mode_1 = myGPIO.GPIO_OUT
    myGPIO.mode_2 = myGPIO.GPIO_OUT
    myGPIO.mode_3 = myGPIO.GPIO_OUT
    myGPIO.mode_4 = myGPIO.GPIO_OUT
    myGPIO.mode_5 = myGPIO.GPIO_OUT
    myGPIO.mode_6 = myGPIO.GPIO_OUT
    myGPIO.mode_7 = myGPIO.GPIO_OUT
    myGPIO.setMode()

    while True:
        myGPIO.out_status_0 = myGPIO.GPIO_HI
        myGPIO.out_status_1 = myGPIO.GPIO_HI
        myGPIO.out_status_2 = myGPIO.GPIO_HI
        myGPIO.out_status_3 = myGPIO.GPIO_HI
        myGPIO.out_status_4 = myGPIO.GPIO_HI
        myGPIO.out_status_5 = myGPIO.GPIO_HI
        myGPIO.out_status_6 = myGPIO.GPIO_HI
        myGPIO.out_status_7 = myGPIO.GPIO_HI
        myGPIO.setGPIO()
        print("set hi")
        time.sleep(1)
        myGPIO.out_status_0 = myGPIO.GPIO_LO
        myGPIO.out_status_1 = myGPIO.GPIO_LO
        myGPIO.out_status_2 = myGPIO.GPIO_LO
        myGPIO.out_status_3 = myGPIO.GPIO_LO
        myGPIO.out_status_4 = myGPIO.GPIO_LO
        myGPIO.out_status_5 = myGPIO.GPIO_LO
        myGPIO.out_status_6 = myGPIO.GPIO_LO
        myGPIO.out_status_7 = myGPIO.GPIO_LO
        myGPIO.setGPIO()
        print("set lo")
        time.sleep(1)


if __name__ == '__main__':
    try:
        runExample()
    except (KeyboardInterrupt, SystemExit) as exErr:
        print("\nEnding Example 1")
        sys.exit(0)

SparkFun - Start Something

Table of Contents

API Reference

qwiic_gpio

Python module for the Qwiic GPIO.

This python package is a port of the existing [SparkFun GPIO Arduino Library](https://github.com/sparkfun/SparkFun_gpio_Arduino_Library)

This package can be used in conjunction with the overall [SparkFun qwiic Python Package](https://github.com/sparkfun/Qwiic_Py)

New to qwiic? Take a look at the entire [SparkFun qwiic ecosystem](https://www.sparkfun.com/qwiic).

class qwiic_gpio.QwiicGPIO(address=None, i2c_driver=None)[source]
Parameters:
  • address – The I2C address to use for the device. If not provided, the default address is used.
  • i2c_driver – An existing i2c driver object. If not provided a driver object is created.
Returns:

The GPIO device object.
Return type:

Object
begin()[source]

Initialize the operation of the Qwiic GPIO

Returns:Returns true of the initializtion was successful, otherwise False.
Return type:bool
getGPIO()[source]

Updates mode_X variables with values from Qwiic GPIO

Returns:The value of the mode register.
Return type:8 bit unsigned integer
getInversion()[source]

Updates inversion_X variables with values from Qwiic GPIO

Returns:The value of the inversion register.
Return type:8 bit unsigned integer
getMode()[source]

Updates mode_X variables with values from Qwiic GPIO

Returns:The value of the mode register.
Return type:8 bit unsigned integer
isConnected()[source]

Determine if a Qwiic GPIO device is connected to the system..

Returns:True if the device is connected, otherwise False.
Return type:bool
setGPIO()[source]

Send all current output settings to the GPIO. This should be called after calling myGPIO.out_status_0 = myGPIO.GPIO_HI to set the GPIO.

Returns:No return value
setInversion()[source]

Send the inversion modes of all pins. This function must be called after editing modes using myGPIO.inversion_0 = myGPIO.INVERT

Returns:No return value
setMode()[source]

Sends all 8 pin modes (input or output) to the GPIO to set all 8 pins. Setting the value to input or output is done using myGPIO.mode_0 = myGPIO.GPIO_OUT

Returns:No return value

Example One

examples/qwiic_gpio_ex1.py
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#!/usr/bin/env python
#-----------------------------------------------------------------------------
# qwiic_gpio_ex1.py
#
# Simple Example for the Qwiic GPIO Device, toggles GPIO 0 on and off.
#------------------------------------------------------------------------
#
# Written by  SparkFun Electronics, May 2019
# 
# This python library supports the SparkFun Electroncis qwiic 
# qwiic sensor/board ecosystem on a Raspberry Pi (and compatable) single
# board computers. 
#
# More information on qwiic is at https://www.sparkfun.com/qwiic
#
# Do you like this library? Help support SparkFun. Buy a board!
#
#==================================================================================
# Copyright (c) 2019 SparkFun Electronics
#
# 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.
#==================================================================================
# Example 1
#

from __future__ import print_function
import qwiic_gpio
import time
import sys

def runExample():

    print("\nSparkFun Qwiic GPIO Example 1\n")
    myGPIO = qwiic_gpio.QwiicGPIO()

    if myGPIO.isConnected() == False:
        print("The Qwiic GPIO isn't connected to the system. Please check your connection", \
            file=sys.stderr)
        return

    myGPIO.begin()
    myGPIO.mode_0 = myGPIO.GPIO_OUT
    myGPIO.mode_1 = myGPIO.GPIO_OUT
    myGPIO.mode_2 = myGPIO.GPIO_OUT
    myGPIO.mode_3 = myGPIO.GPIO_OUT
    myGPIO.mode_4 = myGPIO.GPIO_OUT
    myGPIO.mode_5 = myGPIO.GPIO_OUT
    myGPIO.mode_6 = myGPIO.GPIO_OUT
    myGPIO.mode_7 = myGPIO.GPIO_OUT
    myGPIO.setMode()

    while True:
        myGPIO.out_status_0 = myGPIO.GPIO_HI
        myGPIO.out_status_1 = myGPIO.GPIO_HI
        myGPIO.out_status_2 = myGPIO.GPIO_HI
        myGPIO.out_status_3 = myGPIO.GPIO_HI
        myGPIO.out_status_4 = myGPIO.GPIO_HI
        myGPIO.out_status_5 = myGPIO.GPIO_HI
        myGPIO.out_status_6 = myGPIO.GPIO_HI
        myGPIO.out_status_7 = myGPIO.GPIO_HI
        myGPIO.setGPIO()
        print("set hi")
        time.sleep(1)
        myGPIO.out_status_0 = myGPIO.GPIO_LO
        myGPIO.out_status_1 = myGPIO.GPIO_LO
        myGPIO.out_status_2 = myGPIO.GPIO_LO
        myGPIO.out_status_3 = myGPIO.GPIO_LO
        myGPIO.out_status_4 = myGPIO.GPIO_LO
        myGPIO.out_status_5 = myGPIO.GPIO_LO
        myGPIO.out_status_6 = myGPIO.GPIO_LO
        myGPIO.out_status_7 = myGPIO.GPIO_LO
        myGPIO.setGPIO()
        print("set lo")
        time.sleep(1)


if __name__ == '__main__':
    try:
        runExample()
    except (KeyboardInterrupt, SystemExit) as exErr:
        print("\nEnding Example 1")
        sys.exit(0)

Example 2

examples/qwiic_gpio_ex2.py
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#!/usr/bin/env python
# -----------------------------------------------------------------------------
# qwiic_gpio_ex2.py
#

# Simple Example for the Qwiic GPIO Device, reads every GPIO
# ------------------------------------------------------------------------
#
# Written by  SparkFun Electronics, May 2019
#
# This python library supports the SparkFun Electroncis qwiic
# qwiic sensor/board ecosystem on a Raspberry Pi (and compatable) single
# board computers.
#
# More information on qwiic is at https://www.sparkfun.com/qwiic
#
# Do you like this library? Help support SparkFun. Buy a board!
#
# ==================================================================================
# Copyright (c) 2019 SparkFun Electronics
#
# 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.
# ==================================================================================
# Example 1
#

from __future__ import print_function
import qwiic_gpio
import time
import sys


def runExample():

    print("\nSparkFun Qwiic GPIO Example 2\n")
    myGPIO = qwiic_gpio.QwiicGPIO()

    if myGPIO.isConnected() == False:
        print("The Qwiic GPIO isn't connected to the system. Please check your connection",
              file=sys.stderr)
        return

    myGPIO.begin()
    myGPIO.mode_0 = myGPIO.GPIO_IN
    myGPIO.mode_1 = myGPIO.GPIO_IN
    myGPIO.mode_2 = myGPIO.GPIO_IN
    myGPIO.mode_3 = myGPIO.GPIO_IN
    myGPIO.mode_4 = myGPIO.GPIO_IN
    myGPIO.mode_5 = myGPIO.GPIO_IN
    myGPIO.mode_6 = myGPIO.GPIO_IN
    myGPIO.mode_7 = myGPIO.GPIO_IN
    myGPIO.setMode()

    while True:
        myGPIO.getGPIO() #This function updates each in_status_x variable
        print("GPIO 0:", end=" ")
        print(myGPIO.in_status_0, end=" ")
        print("GPIO 1:", end=" ")
        print(myGPIO.in_status_1, end=" ")
        print("GPIO 2:", end=" ")
        print(myGPIO.in_status_2, end=" ")
        print("GPIO 3:", end=" ")
        print(myGPIO.in_status_3, end=" ")
        print("GPIO 4:", end=" ")
        print(myGPIO.in_status_4, end=" ")
        print("GPIO 5:", end=" ")
        print(myGPIO.in_status_5, end=" ")
        print("GPIO 6:", end=" ")
        print(myGPIO.in_status_6, end=" ")
        print("GPIO 7:", end=" ")
        print(myGPIO.in_status_7)
        time.sleep(.25)

if __name__ == '__main__':
    try:
        runExample()
    except (KeyboardInterrupt, SystemExit) as exErr:
        print("\nEnding Example 1")
        sys.exit(0)

Example 3

examples/qwiic_gpio_ex3.py
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#!/usr/bin/env python
# -----------------------------------------------------------------------------
# qwiic_gpio_ex3.py
#

# Simple Example for the Qwiic GPIO Device, reads every GPIO
# ------------------------------------------------------------------------
#
# Written by  SparkFun Electronics, May 2019
#
# This python library supports the SparkFun Electroncis qwiic
# qwiic sensor/board ecosystem on a Raspberry Pi (and compatable) single
# board computers.
#
# More information on qwiic is at https://www.sparkfun.com/qwiic
#
# Do you like this library? Help support SparkFun. Buy a board!
#
# ==================================================================================
# Copyright (c) 2019 SparkFun Electronics
#
# 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.
# ==================================================================================
# Example 1
#

from __future__ import print_function
import qwiic_gpio
import time
import sys


def runExample():

    print("\nSparkFun Qwiic GPIO Example 3\n")
    myGPIO = qwiic_gpio.QwiicGPIO()

    if myGPIO.isConnected() == False:
        print("The Qwiic GPIO isn't connected to the system. Please check your connection",
              file=sys.stderr)
        return

    myGPIO.begin()
    myGPIO.mode_0 = myGPIO.GPIO_IN
    myGPIO.mode_1 = myGPIO.GPIO_IN
    myGPIO.mode_2 = myGPIO.GPIO_IN
    myGPIO.mode_3 = myGPIO.GPIO_IN
    myGPIO.mode_4 = myGPIO.GPIO_IN
    myGPIO.mode_5 = myGPIO.GPIO_IN
    myGPIO.mode_6 = myGPIO.GPIO_IN
    myGPIO.mode_7 = myGPIO.GPIO_IN
    myGPIO.setMode()

    myGPIO.inversion_0 = myGPIO.INVERT
    myGPIO.inversion_1 = myGPIO.NO_INVERT
    myGPIO.inversion_2 = myGPIO.INVERT
    myGPIO.inversion_3 = myGPIO.NO_INVERT
    myGPIO.inversion_4 = myGPIO.INVERT
    myGPIO.inversion_5 = myGPIO.NO_INVERT
    myGPIO.inversion_6 = myGPIO.INVERT
    myGPIO.inversion_7 = myGPIO.NO_INVERT
    myGPIO.setInversion()

    while True:
        myGPIO.getGPIO()  # This function updates each in_status_x variable
        print("GPIO 0:", end=" ")
        print(myGPIO.in_status_0, end=" ")
        print("GPIO 1:", end=" ")
        print(myGPIO.in_status_1, end=" ")
        print("GPIO 2:", end=" ")
        print(myGPIO.in_status_2, end=" ")
        print("GPIO 3:", end=" ")
        print(myGPIO.in_status_3, end=" ")
        print("GPIO 4:", end=" ")
        print(myGPIO.in_status_4, end=" ")
        print("GPIO 5:", end=" ")
        print(myGPIO.in_status_5, end=" ")
        print("GPIO 6:", end=" ")
        print(myGPIO.in_status_6, end=" ")
        print("GPIO 7:", end=" ")
        print(myGPIO.in_status_7)
        time.sleep(.25)

if __name__ == '__main__':
    try:
        runExample()
    except (KeyboardInterrupt, SystemExit) as exErr:
        print("\nEnding Example 1")
        sys.exit(0)

Example 4

examples/qwiic_gpio_ex4.py
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#!/usr/bin/env python
# -----------------------------------------------------------------------------
# qwiic_gpio_ex3.py
#

# Simple Example for the Qwiic GPIO Device, reads every GPIO
# ------------------------------------------------------------------------
#
# Written by  SparkFun Electronics, May 2019
#
# This python library supports the SparkFun Electroncis qwiic
# qwiic sensor/board ecosystem on a Raspberry Pi (and compatable) single
# board computers.
#
# More information on qwiic is at https://www.sparkfun.com/qwiic
#
# Do you like this library? Help support SparkFun. Buy a board!
#
# ==================================================================================
# Copyright (c) 2019 SparkFun Electronics
#
# 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.
# ==================================================================================
# Example 1
#

from __future__ import print_function
import qwiic_gpio
import time
import sys


def runExample():

    print("\nSparkFun Qwiic GPIO Example 3\n")
    myGPIO = qwiic_gpio.QwiicGPIO()

    if myGPIO.isConnected() == False:
        print("The Qwiic GPIO isn't connected to the system. Please check your connection",
              file=sys.stderr)
        return

    myGPIO.begin()
    myGPIO.mode_0 = myGPIO.GPIO_IN
    myGPIO.mode_1 = myGPIO.GPIO_IN
    myGPIO.mode_2 = myGPIO.GPIO_IN
    myGPIO.mode_3 = myGPIO.GPIO_IN
    myGPIO.mode_4 = myGPIO.GPIO_IN
    myGPIO.mode_5 = myGPIO.GPIO_IN
    myGPIO.mode_6 = myGPIO.GPIO_IN
    myGPIO.mode_7 = myGPIO.GPIO_IN
    myGPIO.setMode()

    myGPIO.inversion_0 = myGPIO.INVERT
    myGPIO.inversion_1 = myGPIO.NO_INVERT
    myGPIO.inversion_2 = myGPIO.INVERT
    myGPIO.inversion_3 = myGPIO.NO_INVERT
    myGPIO.inversion_4 = myGPIO.INVERT
    myGPIO.inversion_5 = myGPIO.NO_INVERT
    myGPIO.inversion_6 = myGPIO.INVERT
    myGPIO.inversion_7 = myGPIO.NO_INVERT
    myGPIO.setInversion()

    while True:
        myGPIO.getGPIO()  # This function updates each in_status_x variable
        print("GPIO 0:", end=" ")
        print(myGPIO.in_status_0 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 1:", end=" ")
        print(myGPIO.in_status_1 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 2:", end=" ")
        print(myGPIO.in_status_2 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 3:", end=" ")
        print(myGPIO.in_status_3 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 4:", end=" ")
        print(myGPIO.in_status_4 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 5:", end=" ")
        print(myGPIO.in_status_5 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 6:", end=" ")
        print(myGPIO.in_status_6 == myGPIO.GPIO_LO, end=" ")
        print("GPIO 7:", end=" ")
        print(myGPIO.in_status_7 == myGPIO.GPIO_LO)
        time.sleep(.25)

if __name__ == '__main__':
    try:
        runExample()
    except (KeyboardInterrupt, SystemExit) as exErr:
        print("\nEnding Example 1")
        sys.exit(0)

Indices and tables