Introduction
============
.. image:: https://readthedocs.org/projects/adafruit-circuitpython-pcf8591/badge/?version=latest
:target: https://docs.circuitpython.org/projects/pcf8591/en/latest/
:alt: Documentation Status
.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg
:target: https://adafru.it/discord
:alt: Discord
.. image:: https://github.com/adafruit/Adafruit_CircuitPython_PCF8591/workflows/Build%20CI/badge.svg
:target: https://github.com/adafruit/Adafruit_CircuitPython_PCF8591/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
ADC+DAC Combo
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>`_.
Installing from PyPI
=====================
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
PyPI <https://pypi.org/project/adafruit-circuitpython-pcf8591/>`_. To install for current user:
.. code-block:: shell
pip3 install adafruit-circuitpython-pcf8591
To install system-wide (this may be required in some cases):
.. code-block:: shell
sudo pip3 install adafruit-circuitpython-pcf8591
To install in a virtual environment in your current project:
.. code-block:: shell
mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-pcf8591
Usage Example
=============
.. code-block:: python3
import time
import board
import adafruit_pcf8591.pcf8591 as PCF
from adafruit_pcf8591.analog_in import AnalogIn
from adafruit_pcf8591.analog_out import AnalogOut
############# AnalogOut & AnalogIn Example ##########################
#
# This example shows how to use the included AnalogIn and AnalogOut
# classes to set the internal DAC to output a voltage and then measure
# it with the first ADC channel.
#
# Wiring:
# Connect the DAC output to the first ADC channel, in addition to the
# normal power and I2C connections
#
#####################################################################
i2c = board.I2C()
pcf = PCF.PCF8591(i2c)
pcf_in_0 = AnalogIn(pcf, PCF.A0)
pcf_out = AnalogOut(pcf, PCF.OUT)
while True:
print("Setting out to ", 65535)
pcf_out.value = 65535
raw_value = pcf_in_0.value
scaled_value = (raw_value / 65535) * pcf_in_0.reference_voltage
print("Pin 0: %0.2fV" % (scaled_value))
print("")
time.sleep(1)
Documentation
=============
API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/pcf8591/en/latest/>`_.
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>`_.
Contributing
============
Contributions are welcome! Please read our `Code of Conduct
<https://github.com/adafruit/Adafruit_CircuitPython_PCF8591/blob/main/CODE_OF_CONDUCT.md>`_
before contributing to help this project stay welcoming.
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"description": "Introduction\n============\n\n.. image:: https://readthedocs.org/projects/adafruit-circuitpython-pcf8591/badge/?version=latest\n :target: https://docs.circuitpython.org/projects/pcf8591/en/latest/\n :alt: Documentation Status\n\n.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg\n :target: https://adafru.it/discord\n :alt: Discord\n\n.. image:: https://github.com/adafruit/Adafruit_CircuitPython_PCF8591/workflows/Build%20CI/badge.svg\n :target: https://github.com/adafruit/Adafruit_CircuitPython_PCF8591/actions\n :alt: Build Status\n\n.. image:: https://img.shields.io/badge/code%20style-black-000000.svg\n :target: https://github.com/psf/black\n :alt: Code Style: Black\n\nADC+DAC Combo\n\n\nDependencies\n=============\nThis driver depends on:\n\n* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_\n* `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_\n* `Register <https://github.com/adafruit/Adafruit_CircuitPython_Register>`_\n\nPlease ensure all dependencies are available on the CircuitPython filesystem.\nThis is easily achieved by downloading\n`the Adafruit library and driver bundle <https://circuitpython.org/libraries>`_.\n\nInstalling from PyPI\n=====================\n\n\nOn supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from\nPyPI <https://pypi.org/project/adafruit-circuitpython-pcf8591/>`_. To install for current user:\n\n.. code-block:: shell\n\n pip3 install adafruit-circuitpython-pcf8591\n\nTo install system-wide (this may be required in some cases):\n\n.. code-block:: shell\n\n sudo pip3 install adafruit-circuitpython-pcf8591\n\nTo install in a virtual environment in your current project:\n\n.. code-block:: shell\n\n mkdir project-name && cd project-name\n python3 -m venv .venv\n source .venv/bin/activate\n pip3 install adafruit-circuitpython-pcf8591\n\nUsage Example\n=============\n\n.. code-block:: python3\n\n import time\n import board\n\n import adafruit_pcf8591.pcf8591 as PCF\n from adafruit_pcf8591.analog_in import AnalogIn\n from adafruit_pcf8591.analog_out import AnalogOut\n\n ############# AnalogOut & AnalogIn Example ##########################\n #\n # This example shows how to use the included AnalogIn and AnalogOut\n # classes to set the internal DAC to output a voltage and then measure\n # it with the first ADC channel.\n #\n # Wiring:\n # Connect the DAC output to the first ADC channel, in addition to the\n # normal power and I2C connections\n #\n #####################################################################\n i2c = board.I2C()\n pcf = PCF.PCF8591(i2c)\n\n pcf_in_0 = AnalogIn(pcf, PCF.A0)\n pcf_out = AnalogOut(pcf, PCF.OUT)\n\n while True:\n\n print(\"Setting out to \", 65535)\n pcf_out.value = 65535\n raw_value = pcf_in_0.value\n scaled_value = (raw_value / 65535) * pcf_in_0.reference_voltage\n\n print(\"Pin 0: %0.2fV\" % (scaled_value))\n print(\"\")\n time.sleep(1)\n\n\n\nDocumentation\n=============\n\nAPI documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/pcf8591/en/latest/>`_.\n\nFor 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>`_.\n\nContributing\n============\n\nContributions are welcome! Please read our `Code of Conduct\n<https://github.com/adafruit/Adafruit_CircuitPython_PCF8591/blob/main/CODE_OF_CONDUCT.md>`_\nbefore contributing to help this project stay welcoming.\n",
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