Intro

Note

uartBridge — The receiver module for connecting Ajax Systems detectors to wireless security systems and smart home solutions.

The UART integration module gives developers and integrators full control over integrating Ajax devices independently of external services and the internet connection, a vital feature for autonomous systems.

This extension allows easy configuration of the uartBridge and quickly adds supported Ajax devices with a couple of clicks.

Important

ℹ️ The extension is a pure vibe-coding product. I've just designed a data structure, entity representation, device management flow, and a basic functional.
ℹ️ As the vendor stopped producing uartBridge in 2023, I will not plan to improve the codebase.
ℹ️ Due to the vendor's refusal to provide per-device information on possible setting types and _values _ that can be adjusted with Byte1/Byte2, I cannot create a correct settings mapping. That's why a primitive sensitivity setting is the only one available.
ℹ️ I can add more settings if I have enough information.

Supported device list

• MotionProtect [✅Tested]
• MotionProtect Plus
• CombiProtect [✅Tested]
• DoorProtect
• FireProtect
• FireProtect Plus [✅Tested]
• LeaksProtect
• Ajax SpaceControl
• GlassProtect

Features

• HUB (uartBridge)
  • Easy add/remove HUB entities
  • Support multiple HUBs
  • Automatic import of devices that are already paired with the uartBridge
  • Arm/Disarm system switch
  • Debug switch that allows you to turn on UART events in the HomeAssistant logs for debug purposes
• Devices
  • Easy add/remove devices (no QRs, turn on the device and add to the integration in two clicks)
  • Full-fledged entities set: Basic sensors + Diagnostic sensors:
    • Battery capacity
    • Battery warning
    • Link problem
    • Signal quality (+Noise +RSSI)
    • Tamper alarm
  • Configuration abilities:
    • 24-h zone
    • sensitivity (MotionProtect [+] and GlassProtect only)
  • Arm/Disarm per device switch

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Installing

HACS

Ajax UART extension is available via The Home Assistant Community Store (HACS)

Manual

Just put the custom_components directory into the configuration location (where configuration.yaml is typically located) and restart your HomeAssistant service.

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Configuring

Add the integration (the first HUB device)

1. Go to ⚙️Settings ➡ Devices and Services ➡ Integrations [config/integrations/dashboard]
2. Press ➕ Add integration
3. Choose Ajax UART extention in the list
4. Specify port of your uartBridge device (e.g., /dev/ttyUSB0) and press Submit
5. You can specify the Area for importing devices in the final dialog window.

Add another HUB device

1. Go to Ajax UART integration section [config/integrations/integration/ajax_uart]
2. Press Add hub
3. Specify port of your uartBridge device (e.g., /dev/ttyUSB1) and press Submit

Add Device

1. Go to the Devices section under the integration [config/devices/dashboard?domain=ajax_uart]
2. Press ➕ Add device
3. Power on the device you want to pair, after the Searching dialog appears.
4. Press Add device variant of the New Device found dialog to finish the procedure.

Remove device

The project doesn't involve frontend changes, so we use the devtool action:

1. Navigate to 🔨Developer tools ➡ Action [developer-tools/action]
2. Find one Remove Ajax Device [ajax_uart.remove_device]
3. Select the device you want to remove from the drop-down list
4. Tap Perform Action

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