adext
AlarmDecoder extended
Decision gist · record as of 2026-08-14
Yes, if you run Home Assistant with a Honeywell or DSC alarm panel and want a straightforward way to automate arming. The package is stable, has no security issues, and carries permissive licensing. The main caveat is that it's aging—last activity was May 2025—so verify compatibility with your current Home Assistant and alarmdecoder versions before relying on it for critical automation.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires alarmdecoder to be installed and configured; intended for use within Home Assistant integrations, not standalone.
- Low install friction with a single runtime dependency (alarmdecoder).
- Package is aging—last commit was 2025-05-10 and no releases since then—but remains in production/stable status with an active repository.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute adext freely with minimal restrictions, making it safe for both personal and commercial Home Assistant deployments.
last release 2025-05-10 (461 days) · last repo commit 2025-05-10 · 2 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 73,734 downloads/mo, #14,936 on PyPI
Alternatives
Verify before relying
pip install adext
from adext import arm_home, arm_away, arm_night
# Arm home with code on Honeywell system
arm_home(code='1234', code_arm_required=True)- Whether the package works with Python versions beyond 3.4 (classifier lists 3.4 but requires_python is unspecified).
- Current compatibility with recent Home Assistant and alarmdecoder versions.
- Whether additional panel brands or arming modes have been added since the last documented release.
What it is and what it does
adext is a small extension library for alarmdecoder that adds three arming methods designed for Home Assistant integration. It abstracts away the panel-specific key sequences required to arm Honeywell and DSC security systems in home, away, and night modes. Rather than requiring users to know the exact key press combinations for each panel brand and configuration, adext provides a consistent interface: you call arm_home(), arm_away(), or arm_night() with parameters like a code, auto-bypass preference, and mode options, and the library generates the correct sequence for your panel type.
The package depends solely on alarmdecoder and is distributed as a pure Python wheel with low install friction. It's classified as production/stable but aging—the last commit was in May 2025 with no subsequent releases. The repository remains active and unarchived, suggesting maintenance is possible but infrequent. There are no known security vulnerabilities.
Use it for
- Automate arming/disarming of Honeywell or DSC panels from Home Assistant without manually constructing key sequences.
- Build Home Assistant automations that arm the system in different modes based on occupancy or time of day.
- Support multiple panel brands in a single Home Assistant integration by delegating sequence generation to adext.
- Enable code-free arming on compatible panels by setting code_arm_required=False and letting adext handle the keypad sequences.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you run Home Assistant with a Honeywell or DSC alarm panel and want a straightforward way to automate arming.
The package is stable, has no security issues, and carries permissive licensing. The main caveat is that it's aging—last activity was May 2025—so verify compatibility with your current Home Assistant and alarmdecoder versions before relying on it for critical automation.
Install
adext on PyPI
Before you install
Low install friction with a single runtime dependency (alarmdecoder). Package is aging—last commit was 2025-05-10 and no releases since then—but remains in production/stable status with an active repository.
Requires alarmdecoder to be installed and configured; intended for use within Home Assistant integrations, not standalone.
License in practice
MIT license is permissive; you can use, modify, and distribute adext freely with minimal restrictions, making it safe for both personal and commercial Home Assistant deployments.
Quickstart
pip install adext
from adext import arm_home, arm_away, arm_night
# Arm home with code on Honeywell system
arm_home(code='1234', code_arm_required=True)Verify before relying
- Whether the package works with Python versions beyond 3.4 (classifier lists 3.4 but requires_python is unspecified).
- Current compatibility with recent Home Assistant and alarmdecoder versions.
- Whether additional panel brands or arming modes have been added since the last documented release.
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagealarmdecoder |
| Maintenance | Aging 461 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 73,734 / month, #14,936 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/StableLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 3.4Topic :: CommunicationsTopic :: Home AutomationTopic :: SecurityTopic :: Software Development :: Libraries :: Python Modules |
Evidence: adext-0.4.7-py3-none-any.whl
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