cremalink

A high-performance Python library and local API server for monitoring and controlling IoT coffee machines.

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✨ Overview

Cremalink provides a unified interface to interact with smart coffee machines via Local LAN control or Cloud API. It allows for real-time state monitoring and precise command execution.

Tip

For detailed guides, advanced configuration, and developer deep-dives, please visit our Project Wiki.

Note

This project was developed with a result-oriented approach, primarily optimized for the De'Longhi PrimaDonna Soul. While the architecture is designed to be extensible, some logic may currently be tightly coupled to this specific model and might not work seamlessly with others yet. The goal is to make the library fully generic. If you notice parts that are too specific to the PrimaDonna Soul or encounter issues with other machines, we highly encourage contributions! Refactoring and generalizations are very welcome to improve support for a wider range of devices.

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🚀 Installation

Install the package via pip (Cremalink requires Python 3.13+):

pip install cremalink

Optional Dependencies

To include tools for development or testing:

pip install "cremalink[dev]"   # For notebooks and kernel support
pip install "cremalink[test]"  # For running pytest suites

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🛠 Usage

Integrated API Server

Cremalink includes a FastAPI-based server for headless environments:

# Start the server
cremalink-server --ip 0.0.0.0 --port 10280 --settings_path "conf.json"

More information: Local Server Setup

Python API (Local Control)

Connect to your machine directly via your local network for the lowest latency.

More information: Local Device Usage

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🛠 Development

Testing

Run the comprehensive test suite using pytest:

pytest tests/

Contributing

Contributions are welcome! If you have a machine profile not yet supported, please check the Wiki: 5. Adding Custom Devices on how to add new .json device definitions.

Currently supported devices:

• De'Longhi PrimaDonna Soul (ECAM612)
• De'Longhi Eletta Explore (ECAM452) (not tested yet)

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☕ Credits

This project stands on the shoulders of giants. The reverse engineering and implementation is a community effort. A special thanks to the following projects and individuals for their pioneering work and documentation:

Technical Foundations, Protocol Research & Inspiration

• ECAMpy
• delonghi-comfort-client
• Hacking Bluetooth to Brew Coffee
• delonghi-coffee-link-python
• DlghIoT
• home_assistant_delonghi_primadonna
• longshot

Is a project missing or do you have suggestions for improvement? Feel free to open a PR or an issue!

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📄 License

Distributed under the AGPL-3.0-or-later License. See LICENSE for more information.

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Developed by Midian Tekle Elfu. Supported by the community.