Nxscli

Nxscli is a command-line client package for the Apache NuttX NxScope real-time logging module.

It is also a reusable Python runtime layer for NxScope streaming, channel control, triggers, and plugin orchestration. The nxscli internals are used by other tools (for example GUI applications) to build more advanced workflows without re-implementing NxScope communication logic.

Compatible with Python 3.10+.

Features

• Plugins architecture, extendable through nxscli.extensions entrypoint
• Client-based triggering (global and per-channel triggers)
• Save data to CSV files
• Save data to Numpy files (pnpsave) and memmap files (pnpmem)
• Print samples
• Stream data over UDP (compatible with PlotJuggler)
• NxScope protocol via serial port or Segger RTT interface
• Virtual channels and math operations on channels data
• Optional control server (--control-server) for extensions

Features Planned

• More triggering types
• Boolean operations on triggers
• Improve pdevinfo output (human-readable prints)
• Interactive mode

Plugins

By default, nxscli ships with core plugins including CSV, printer, UDP, and NumPy file capture (pnpsave and pnpmem). Additional functionality is expanded by installing optional plugins. Plugins are automatically detected by Nxscli.

Available plugins:

• nxscli-mpl - Matplotlib extension
• nxscli-pqg - PyQtGraph extension

Plugins Planned

• Stream data as audio (inspired by audio knock detection systems)

Installation

Nxscli can be installed by running pip install nxscli.

To install latest development version, use:

pip install git+https://github.com/railab/nxscli.git

Usage

Look at docs/usage.

Reuse as a Library

nxscli is not only a CLI frontend. It can be imported and reused by external applications that need:

• NxScope connection handling (serial/RTT and compatible interfaces)
• channel configuration and stream lifecycle control
• plugin loading and runtime execution
• trigger and data-processing orchestration

This makes nxscli the integration layer for higher-level tools such as custom dashboards, GUIs, and automation scripts.

Contributing

All contributions are welcome to this project.

To get started with developing Nxscli, see CONTRIBUTING.md.