pypck
LCN-PCK library
Decision gist · record as of 2026-08-14
Yes, if you own or manage an LCN system and need Python-based control. The library is actively maintained, has no external dependencies, and is proven in production use via Home Assistant. Requires Python 3.13+, an LCN-PCHK license, and a hardware coupler—verify those prerequisites before installing.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.13+; also requires an LCN-PCHK coupling software license and hardware coupler to connect to an actual LCN system.
- Low install friction; pure Python wheel with no runtime dependencies.
- Active maintenance with recent release (44 days ago) and ongoing repository activity.
License · maintenance · safety
MIT (permissive) — MIT license permits unrestricted use, modification, and distribution with minimal restrictions—suitable for both commercial and open-source projects.
last release 2026-07-01 (44 days) · last repo commit 2026-07-05 · 11 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 78,317 downloads/mo, #14,452 on PyPI
Alternatives
Verify before relying
pip install pypck
import asyncio
from pypck.connection import PchkConnectionManager
from pypck.lcn_addr import LcnAddr
async def main():
async with PchkConnectionManager("192.168.2.41", 4114, username="lcn", password="lcn") as pck_client:
module = pck_client.get_device_connection(LcnAddr(0, 10, False))
await module.dim_output(0, 100, 0)
asyncio.run(main())- Whether the LCN-PCHK coupling software license and hardware coupler are freely available or require separate purchase
- Performance characteristics and scalability limits for controlling large numbers of LCN modules
- Whether the library supports all LCN-PCK protocol versions or specific versions only
What it is and what it does
pypck is a Python async library that implements the LCN-PCK protocol to communicate with LCN (local control network) systems—a vendor-specific home automation platform. It abstracts the low-level protocol details into a connection manager and device objects, allowing you to control LCN modules (switches, dimmers, sensors) over a network connection. The library is actively maintained and used by Home Assistant's LCN integration.
To use pypck, you need an LCN-PCHK coupling software license and a hardware coupler device. The library provides async/await patterns for non-blocking control operations, making it suitable for integration into event-driven home automation systems. It has no external runtime dependencies beyond Python itself, keeping deployment simple.
Use it for
- Integrate LCN home automation systems into Home Assistant or other Python-based home automation platforms
- Build custom control applications to remotely switch and dim LCN module outputs over the network
- Monitor and control LCN sensors and actuators from a Python application without blocking on I/O
- Automate lighting, heating, or other LCN-controlled devices via async event handlers
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you own or manage an LCN system and need Python-based control.
The library is actively maintained, has no external dependencies, and is proven in production use via Home Assistant. Requires Python 3.13+, an LCN-PCHK license, and a hardware coupler—verify those prerequisites before installing.
Install
pypck on PyPI
Before you install
Low install friction; pure Python wheel with no runtime dependencies. Active maintenance with recent release (44 days ago) and ongoing repository activity.
Requires Python 3.13+; also requires an LCN-PCHK coupling software license and hardware coupler to connect to an actual LCN system.
License in practice
MIT license permits unrestricted use, modification, and distribution with minimal restrictions—suitable for both commercial and open-source projects.
Quickstart
pip install pypck
import asyncio
from pypck.connection import PchkConnectionManager
from pypck.lcn_addr import LcnAddr
async def main():
async with PchkConnectionManager("192.168.2.41", 4114, username="lcn", password="lcn") as pck_client:
module = pck_client.get_device_connection(LcnAddr(0, 10, False))
await module.dim_output(0, 100, 0)
asyncio.run(main())Verify before relying
- Whether the LCN-PCHK coupling software license and hardware coupler are freely available or require separate purchase
- Performance characteristics and scalability limits for controlling large numbers of LCN modules
- Whether the library supports all LCN-PCK protocol versions or specific versions only
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.13 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 44 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 78,317 / month, #14,452 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Topic :: Home Automation |
Evidence: pypck-0.9.14-py3-none-any.whl
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