4 .. image:: https://readthedocs.org/projects/adafruit-micropython-blinka/badge/?version=latest
5 :target: https://circuitpython.readthedocs.io/projects/blinka/en/latest/
6 :alt: Documentation Status
8 .. image:: https://img.shields.io/discord/327254708534116352.svg
9 :target: https://adafru.it/discord
12 .. image:: https://travis-ci.com/adafruit/Adafruit_Blinka.svg?branch=master
13 :target: https://travis-ci.com/adafruit/Adafruit_Blinka
16 .. image:: https://img.shields.io/badge/code%20style-black-000000.svg
17 :target: https://github.com/psf/black
18 :alt: Code Style: Black
20 This repository contains a selection of packages emulating the CircuitPython API
21 for devices or hosts running CPython or MicroPython. Working code exists to emulate these CircuitPython packages:
23 * **analogio** - analog input/output pins, using pin identities from board+microcontroller packages
24 * **bitbangio** - software-driven interfaces for I2C, SPI
25 * **board** - breakout-specific pin identities
26 * **busio** - hardware-driven interfaces for I2C, SPI, UART
27 * **digitalio** - digital input/output pins, using pin identities from board+microcontroller packages
28 * **keypad** - support for scanning keys and key matrices
29 * **microcontroller** - chip-specific pin identities
30 * **micropython** - MicroPython-specific module
31 * **neopixel_write** - low-level interface to NeoPixels
32 * **pulseio** - contains classes that provide access to basic pulse IO (PWM)
33 * **pwmio** - contains classes that provide access to basic pulse IO (PWM)
34 * **rainbowio** - provides the colorwheel() function
35 * **usb_hid** - act as a hid-device using usb_gadget kernel driver
37 For details, see the `Blinka API reference
38 <https://circuitpython.readthedocs.io/projects/blinka/en/latest/index.html>`_.
43 The emulation described above is intended to provide a
44 CircuitPython-like API for devices which are running CPython or
45 Micropython. Since corresponding packages should be built-in to any
46 standard CircuitPython image, they have no value on a device already
47 running CircuitPython and would likely conflict in unhappy ways.
49 The test suites in the test/src folder under **testing.universal** are by design
50 intended to run on *either* CircuitPython *or* CPython/Micropython+compatibility layer to prove conformance.
55 On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
56 PyPI <https://pypi.org/project/Adafruit-Blinka/>`_. To install for current user:
60 pip3 install Adafruit-Blinka
62 To install system-wide (this may be required in some cases):
66 sudo pip3 install Adafruit-Blinka
68 To install in a virtual environment in your current project:
72 mkdir project-name && cd project-name
74 source .env/bin/activate
75 pip3 install Adafruit-Blinka
80 At the time of writing (`git:7fc1f8ab <https://github.com/cefn/Adafruit_Micropython_Blinka/tree/7fc1f8ab477124628a5afebbf6826005955805f9>`_),
81 the following sequence runs through some basic testing of the digitalio compatibility layer...
83 .. code-block:: python
85 from testing import test_module_name
86 test_module_name("testing.universal.digitalio")
88 An example log from running the suites is `here <https://github.com/cefn/Adafruit_Micropython_Blinka/issues/2#issuecomment-366713394>`_ .
93 Contributions are welcome! Please read our `Code of Conduct
94 <https://github.com/adafruit/Adafruit_Blinka/blob/master/CODE_OF_CONDUCT.md>`_
95 before contributing to help this project stay welcoming.
101 -----------------------
103 Sphinx is used to build the documentation based on rST files and comments in the code. First,
104 install dependencies (feel free to reuse the virtual environment from above):
106 .. code-block:: shell
109 source .env/bin/activate
110 pip install Sphinx sphinx-rtd-theme Adafruit-PlatformDetect
112 Now, once you have the virtual environment activated:
114 .. code-block:: shell
117 sphinx-build -E -W -b html . _build/html
119 This will output the documentation to ``docs/_build/html``. Open the index.html in your browser to
120 view them. It will also (due to -W) error out on any warning like Travis will. This is a good way to
121 locally verify it will pass.