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community-circuitpython-tca9555-0.2.2
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مشاهده بیشترتوضیحات
CircuitPython library for connecting a TCA9555 16-Bit I2C GPIO expander
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | community-circuitpython-tca9555-0.2.2 |
| نام | community-circuitpython-tca9555 |
| نسخه کتابخانه | 0.2.2 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | James Carr |
| ایمیل نویسنده | - |
| آدرس صفحه اصلی | https://github.com/lesamouraipourpre/Community_CircuitPython_TCA9555.git |
| آدرس اینترنتی | https://pypi.org/project/community-circuitpython-tca9555/ |
| مجوز | MIT |
Introduction
============
.. image:: https://readthedocs.org/projects/community-circuitpython-tca9555/badge/?version=latest
:target: https://community-circuitpython-tca9555.readthedocs.io/
:alt: Documentation Status
.. image:: https://img.shields.io/discord/327254708534116352.svg
:target: https://adafru.it/discord
:alt: Discord
.. image:: https://github.com/lesamouraipourpre/Community_CircuitPython_TCA9555/workflows/Build%20CI/badge.svg
:target: https://github.com/lesamouraipourpre/Community_CircuitPython_TCA9555/actions
:alt: Build Status
.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
:target: https://github.com/psf/black
:alt: Code Style: Black
CircuitPython library for Texas Instruments TCA9555 Low-Voltage 16-Bit I2C
and SMBus I/O Expander with Input / Output and Polarity Inversion.
`DataSheet <https://www.ti.com/lit/ds/symlink/tca9555.pdf>`_
Dependencies
=============
This driver depends on:
* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
* `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_
* `Register <https://github.com/adafruit/Adafruit_CircuitPython_Register>`_
Please ensure all dependencies are available on the CircuitPython filesystem.
This is easily achieved by downloading
`the Adafruit library and driver bundle <https://circuitpython.org/libraries>`_
or individual libraries can be installed using
`circup <https://github.com/adafruit/circup>`_.
Installing from PyPI
=====================
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
PyPI <https://pypi.org/project/community-circuitpython-tca9555/>`_.
To install for current user:
.. code-block:: shell
pip3 install community-circuitpython-tca9555
To install system-wide (this may be required in some cases):
.. code-block:: shell
sudo pip3 install community-circuitpython-tca9555
To install in a virtual environment in your current project:
.. code-block:: shell
mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install community-circuitpython-tca9555
Usage Example
=============
Create an instance of TCA9555 expander. This defaults to all 16 pins set as
inputs with no polarity conversion.
.. code-block:: python
from community_tca9555 import TCA9555
# If the board has I2C defined
expander = TCA9555(board.I2C()) # Use default address of 0x20
# Else specify the specific pins
expander = TCA9555(busio.I2C(scl=board.GP5, sda=board.GP4)) # for the RP Pico
Set the low 8 bits as inputs and the high 8 bits as outputs.
.. code-block:: python
# set all 16 pins at once
expander.configuration_ports = 0x00FF
# or
# set port 0 (8bits) and port 1 (8 bits)
expander.configuration_port_0 = 0xFF # Inputs
expander.configuration_port_1 = 0x00 # Outputs
# or
# set each pin individually
expander.configuration_port_0_pin_0 = True # Input
# ...
expander.configuration_port_1_pin_7 = False # Output
Set pins 6 and 7 of both port 0 and port 1 as polarity inverted.
.. code-block:: python
# Set polarity inversion state for individual pins.
expander.polarity_inversion_port_0_pin_6 = True # Inverted
expander.polarity_inversion_port_0_pin_7 = True
expander.polarity_inversion_port_1_pin_6 = True
expander.polarity_inversion_port_1_pin_7 = True
# or
# Set an 8bit port at once
expander.polarity_inversion_port_0 = 0xC0 # Just bits 6 and 7
# or
# Set all 16bits at once
expander.polarity_inversions = 0xC0C0
Read the input pins.
.. code-block:: python
input_state = expander.input_port_0
print("Inputs: {:08b}".format(input_state))
Set the state of the output pins.
.. code-block:: python
expander.output_port_1 = 0x42
Contributing
============
Contributions are welcome! Please read our `Code of Conduct
<https://github.com/lesamouraipourpre/Community_CircuitPython_TCA9555/blob/HEAD/CODE_OF_CONDUCT.md>`_
before contributing to help this project stay welcoming.
Documentation
=============
For information on building library documentation, please check out
`this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>`_.
نحوه نصب
نصب پکیج whl community-circuitpython-tca9555-0.2.2:
pip install community-circuitpython-tca9555-0.2.2.whl
نصب پکیج tar.gz community-circuitpython-tca9555-0.2.2:
pip install community-circuitpython-tca9555-0.2.2.tar.gz