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@bacnet-js/device

v0.5.0

Published

A TypeScript library for implementing BACnet IP devices in Node.js.

Downloads

125

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Links

Git

Maintainers

roberts_landoroberts_landojacoscazjacoscaz

Keywords

bacnetdeviceashraeobjectproperty

Readme

@bacnet-js/device

A TypeScript library for implementing BACnet/IP devices in Node.js.

Status

Under heavy development as of June 2025.

This project was started by Jacopo Scazzosi (@jacoscaz), who continues to maintain it, halfway through 2025. However, just a few weeks after the first alpha release, it was then moved to the newly-created bacnet-js organization, together with primary dependency @bacnet-js/client. By putting our heads together we hope to create a robust, modular, cohesive ecosystem for BACnet applications in Node.js.

Interested in the intersection of BACnet and Node.js? Come visit us!

Characteristics

This library provides a high-level API that simplifies the instantiation and management of BACnet objects by abstracting network operations (subscription management, CoV propagation, value updates) and accurately modelling BACnet's object types through dedicated classes that automatically instantiate all properties required by the BACnet specification.

  1. Detailed types: ships well-defined interfaces and classes to surface BACnet's complex data structures at the typings level.
  2. Separation of concerns: maintains separate classes for BACnet objects, properties, and network operations, loosely coupled via events.
  3. Backpressure management: operations return Promises that resolve only after full processing and acknowledgment, creating natural throttling; for example, COV notifications wait for subscriber confirmation before processing the next change.
  4. Object-level transactions: access to property values, whether by other devices in the BACnet network or by consumers of this library, are processed through per-object FIFO queues to maintain consistency and prevent race conditions.

This library is built on top of the wonderful @bacnet-js/client, a TypeScript implementation of BACnet's protocol. Any improvement that is applicable to @bacnet-js/client is contributed upstream.

Documentation

License

This project is licensed under the MIT License - see the LICENSE file for details.

Usage

See the examples directory for working usage examples which you should be able to run locally and use with any BACnet client of your choice. For local testing I tend to use YABE, which is native to Windows but can be made to work reasonably well on macOS and Linux via Wine.