130 lines
4 KiB
ReStructuredText
130 lines
4 KiB
ReStructuredText
Introduction
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============
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.. image:: https://readthedocs.org/projects/adafruit-circuitpython-opt4048/badge/?version=latest
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:target: https://docs.circuitpython.org/projects/opt4048/en/latest/
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:alt: Documentation Status
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.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg
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:target: https://adafru.it/discord
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:alt: Discord
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.. image:: https://github.com/adafruit/Adafruit_CircuitPython_OPT4048/workflows/Build%20CI/badge.svg
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:target: https://github.com/adafruit/Adafruit_CircuitPython_OPT4048/actions
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:alt: Build Status
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.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
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:target: https://github.com/astral-sh/ruff
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:alt: Code Style: Ruff
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CircuitPython driver library for the Adafruit OPT4048 breakout board, a high-speed, high-precision tristimulus XYZ color sensor.
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Dependencies
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=============
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This driver depends on:
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* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
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* `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_
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* `Register <https://github.com/adafruit/Adafruit_CircuitPython_Register>`_
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Please ensure all dependencies are available on the CircuitPython filesystem.
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This is easily achieved by downloading
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`the Adafruit library and driver bundle <https://circuitpython.org/libraries>`_
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or individual libraries can be installed using
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`circup <https://github.com/adafruit/circup>`_.
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`Adafruit OPT4048 Tri-Stimulus XYZ Color and Lux Sensor <http://www.adafruit.com/products/6335>`_
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Installing from PyPI
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=====================
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On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
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PyPI <https://pypi.org/project/adafruit-circuitpython-opt4048/>`_.
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To install for current user:
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.. code-block:: shell
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pip3 install adafruit-circuitpython-opt4048
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To install system-wide (this may be required in some cases):
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.. code-block:: shell
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sudo pip3 install adafruit-circuitpython-opt4048
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To install in a virtual environment in your current project:
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.. code-block:: shell
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mkdir project-name && cd project-name
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python3 -m venv .venv
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source .env/bin/activate
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pip3 install adafruit-circuitpython-opt4048
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Installing to a Connected CircuitPython Device with Circup
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==========================================================
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Make sure that you have ``circup`` installed in your Python environment.
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Install it with the following command if necessary:
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.. code-block:: shell
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pip3 install circup
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With ``circup`` installed and your CircuitPython device connected use the
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following command to install:
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.. code-block:: shell
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circup install adafruit_opt4048
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Or the following command to update an existing version:
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.. code-block:: shell
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circup update
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Usage Example
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=============
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.. code-block:: python
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import time
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from time import sleep
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import board
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from adafruit_opt4048 import OPT4048, ConversionTime, Mode, Range
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i2c = board.I2C() # uses board.SCL and board.SDA
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# i2c = board.STEMMA_I2C() # For using the built-in STEMMA QT connector on a microcontroller
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sensor = OPT4048(i2c)
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sensor.range = Range.AUTO
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sensor.conversion_time = ConversionTime.TIME_100MS
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sensor.mode = Mode.CONTINUOUS
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while True:
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x, y, lux = sensor.cie
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print(f"CIE x:{x}, y:{y}, lux: {lux}", end=" ")
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print(f"K: {sensor.calculate_color_temperature(x,y)}")
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time.sleep(1)
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Documentation
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=============
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API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/opt4048/en/latest/>`_.
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For information on building library documentation, please check out
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`this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>`_.
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Contributing
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============
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Contributions are welcome! Please read our `Code of Conduct
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<https://github.com/adafruit/Adafruit_CircuitPython_OPT4048/blob/HEAD/CODE_OF_CONDUCT.md>`_
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before contributing to help this project stay welcoming.
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