MQTT SecuritySystem (Scrypted)

Control and sync alarm panels over MQTT (e.g. Paradox with PAI/PAI-MQTT), exposed in Scrypted as a SecuritySystem. Optional child sensors (contact, motion, occupancy) can also be integrated.

Features

• Arm/Disarm: Disarmed, Home, Away, Night.
• MQTT topics for current/target state, tamper, and online.
• Optional per‑sensor MQTT bindings (contact/motion/occupancy) with battery, tamper, and online status.
• HomeKit: usable through the official Scrypted HomeKit plugin (non-standalone accessory).

Install

npm i
npm run build       # produces dist/plugin.zip

Then in **Scrypted → Manage Plugins → Install

Alternatively: npm run deploy (requires npx scrypted-cli login one time).

Configuration (Settings)

MQTT

• Broker URL e.g. mqtt://127.0.0.1:1883
• Username/Password (if needed)
• Client ID
• TLS / Reject Unauthorized (when using mqtts://)

Alarm Topics

• Set Target State (publish): where the plugin publishes outgoing arm/disarm payloads.
• Get Target State (subscribe): topic that echoes the intended target from your alarm bridge.
• Get Current State (subscribe): topic reflecting the actual alarm state.
• Get Status Tampered (subscribe): tamper status.
• Get Online (subscribe): online/offline indicator of the alarm bridge.

Publish Options

• QoS / Retain

Outgoing Payloads (defaults)

• Disarm → disarm
• Home → arm_home
• Away → arm_away
• Night → arm_night

You can change these to match your bridge.

Sensor Support (Optional)

The plugin can expose additional sensors. You may add them from the Sensors section in Settings.

Each sensor has:

• kind: contact | motion | occupancy
• topics (examples):
  • Contact: your/zones/front-door/open
  • Motion: your/zones/hallway/motion
  • Occupancy: your/rooms/office/occupied
  • Optional: batteryLevel (0..100), lowBattery (boolean), tamper, online

Creating Sensors from the UI

• Fill the fields for ID, Name, Kind, and desired Topics.
• Toggle Create Sensor to “On” and Save.
• Restart this plugin to have Scrypted show the new accessory under the plugin device.
• If you’re using HomeKit, restart the HomeKit plugin to see newly added accessories.

Only the capabilities for which topics are provided will be exposed (e.g., no low‑battery if no related topic is set).

HomeKit Notes

Add this plugin’s device to the HomeKit plugin (not as a Standalone accessory). A QR code appears in the HomeKit plugin when it is running and configured.

Example Topic Mapping (Generic)

Replace with your own topics from your bridge.

• Set Target (publish): alarm/control/partition_1
• Get Target (subscribe): alarm/states/partition_1/target_state
• Get Current (subscribe): alarm/states/partition_1/current_state
• Tamper (subscribe): alarm/states/system/tamper
• Online (subscribe): alarm/interface/availability (online/offline)

Behavior & States

• The plugin waits for Current State before flipping the alarm mode (so you can see arming delays).
• It accepts common synonyms on incoming states (e.g., armed_home, armed_away, armed_night, disarmed).
• For sensors, battery/low‑battery is only reported when the corresponding topic is configured and indicates it.

Troubleshooting

• No HomeKit QR? Ensure the HomeKit plugin is running and this device is added there (not standalone).
• Mode flips instantly? Ensure your bridge publishes Current State updates (and optionally exit_delay during arming).
• Nothing happens on arm/disarm? Verify the Set Target topic and outgoing payloads.
• MQTT connection issues? Check broker URL, credentials, TLS, and network reachability.

License

MIT (or your preferred license).