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MIDI library for CircuitPython

Dependencies

This library depends on:

• Adafruit CircuitPython <https://github.com/adafruit/circuitpython>_

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/circuitpython-tmidi/>_. To install for current user:

.. code-block:: shell

pip3 install circuitpython-tmidi

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

.. code-block:: shell

sudo pip3 install circuitpython-tmidi

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 circuitpython-tmidi

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 tmidi

Or the following command to update an existing version:

.. code-block:: shell

circup update

Usage Example

.. code-block:: python

import usb_midi
import tmidi

midi_usb = tmidi.MIDI(midi_in=usb_midi.ports[0], midi_out=usb_midi.ports[1])

def send_midi_panic(midi_channel=1):
    ch = midi_channel-1
    msg = tmidi.Message(tmidi.NOTE_OFF, channel=ch)  # channels are 0-indexed
    for notenum in range(128):
        msg.note = notenum
        msg.velocity = 0
        midi_usb.send(msg)
        time.sleep(0.01)
}

send_midi_panic()

Documentation

API documentation for this library can be found on Read the Docs <https://circuitpython-tmidi.readthedocs.io/>_.

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>_.

Testing

Install pytest with pip3 install pytest --upgrade and run pytest -v To build docs:

Contributing

Contributions are welcome! Please read our Code of Conduct <https://github.com/todbot/CircuitPython_TMIDI/blob/HEAD/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.