mopidy-nad

Mopidy extension for controlling volume on a NAD amplifier. Developed and tested with a NAD C355BEE.

Maintainer wanted

Mopidy-NAD is currently kept on life support by the Mopidy core developers. It is in need of a more dedicated maintainer.

If you want to be the maintainer of Mopidy-NAD, please:

1. Make 2-3 good pull requests improving any part of the project.

2. Read and get familiar with all of the project's open issues.

3. Send a pull request removing this section and adding yourself as the "Current maintainer" in the "Credits" section below. In the pull request description, please refer to the previous pull requests and state that you've familiarized yourself with the open issues.

As a maintainer, you'll be given push access to the repo and the authority to make releases to PyPI when you see fit.

Installation

Install by running:

python3 -m pip install mopidy-nad

See https://mopidy.com/ext/nad/ for alternative installation methods.

Configuration

The Mopidy-NAD extension is enabled by default. To disable it, add the following to mopidy.conf:

[nad]
enabled = false

The NAD amplifier must be connected to the machine running Mopidy using a serial cable.

To use the NAD amplifier to control volume, set the audio/mixer config value in mopidy.conf to nad. You probably also needs to add some properties to the nad config section.

Supported properties includes:

• port: The serial device to use, defaults to /dev/ttyUSB0. This must be set correctly for the mixer to work.

• source: The source that should be selected on the amplifier, like aux, disc, tape, tuner, etc. Leave unset if you don't want the mixer to change it for you.

• speakers-a: Set to on or off (or true or false) if you want the mixer to make sure that speaker set A is turned on or off. Leave unset if you don't want the mixer to change it for you.

• speakers-b: See speakers-a.

Configuration example with minimum configuration, if the amplifier is available at /dev/ttyUSB0::

[audio]
mixer = nad

Configuration example with minimum configuration, if the amplifier is available elsewhere:

[audio]
mixer = nad

[nad]
port = /dev/ttyUSB3

Configuration example with full configuration::

[audio]
mixer = nad

[nad]
port = /dev/ttyUSB0
source = aux
speakers-a = true
speakers-b = false

Project resources

• Source code
• Issues
• Releases

Development

Set up development environment

Clone the repo using, e.g. using gh:

gh repo clone mopidy/mopidy-nad

Enter the directory, and install dependencies using uv:

cd mopidy-nad/
uv sync

Running tests

To run all tests and linters in isolated environments, use tox:

tox

To only run tests, use pytest:

pytest

To format the code, use ruff:

ruff format .

To check for lints with ruff, run:

ruff check .

To check for type errors, use pyright:

pyright .

Making a release

To make a release to PyPI, go to the project's GitHub releases page and click the "Draft a new release" button.

In the "choose a tag" dropdown, select the tag you want to release or create a new tag, e.g. v0.1.0. Add a title, e.g. v0.1.0, and a description of the changes.

Decide if the release is a pre-release (alpha, beta, or release candidate) or should be marked as the latest release, and click "Publish release".

Once the release is created, the release.yml GitHub Action will automatically build and publish the release to PyPI.

Credits

• Original author: Stein Magnus Jodal
• Current maintainer: None. Maintainer wanted, see section above.
• Contributors