adafruit-circuitpython-gp8403

Introduction
============


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CircuitPython driver for the Adafruit GP8403 Breakout Board I2C DAC with 12V Booster + NVM - STEMMA QT / qwiic


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>`_.

`Purchase one from the Adafruit shop <http://www.adafruit.com/products/6516>`_

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-gp8403/>`_.
To install for current user:

.. code-block:: shell

    pip3 install adafruit-circuitpython-gp8403

To install system-wide (this may be required in some cases):

.. code-block:: shell

    sudo pip3 install adafruit-circuitpython-gp8403

To install in a virtual environment in your current project:

.. code-block:: shell

    mkdir project-name && cd project-name
    python3 -m venv .venv
    source .env/bin/activate
    pip3 install adafruit-circuitpython-gp8403

Installing to a Connected CircuitPython Device with Circup
==========================================================

Make sure that you have ``circup`` installed in your Python environment.
Install it with the following command if necessary:

.. code-block:: shell

    pip3 install circup

With ``circup`` installed and your CircuitPython device connected use the
following command to install:

.. code-block:: shell

    circup install adafruit_gp8403

Or the following command to update an existing version:

.. code-block:: shell

    circup update

Usage Example
=============

.. code-block:: python

	import time
	import board
	import adafruit_gp8403

	i2c = board.I2C()
	# default 0-5V range:
	dac = adafruit_gp8403.GP8403(i2c)
	# for 0-10V range:
	# dac = adafruit_gp8403.GP8403(i2c, output_range=adafruit_gp8403.Range.RANGE_10V)

	dac.channel_0.voltage = 2.5 # set channel 0 to 2.5V
	dac.channel_1.voltage = 3.5 # set channel 0 to 3.5V
	while True:
		# can access voltages as a tuple too (dac.voltages):
		print(f"Channel 0: {dac.voltages[0]:.01f}V")
		print(f"Channel 1: {dac.voltages[1]:.01f}V")
		time.sleep(1)

Documentation
=============
API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/gp8403/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_GP8403/blob/HEAD/CODE_OF_CONDUCT.md>`_
before contributing to help this project stay welcoming.