Gateway Version 1.5.6

Stability, SMS Integration, and UI Refinement

I'd like to announce the release of v1.5.6 for the OHS_2-gateway. This update brings critical under-the-hood refactoring for better performance while introducing several requested features for daily usability.

🚀 Key New Features

• HTTP Server Advanced Alerting System:  The Web UI alerts are overhauled. You’ll now see distinct visual feedback for Info, Warning, and Error levels, making it much easier to confirm when settings have been saved correctly.

• "Zones Needed to ARM" Logic: This is a major security enhancement. You can now flag specific zones as "required." If you attempt to arm a group while one of these zones is compromised, the request will be rejected. There are plans for follow-up updates for authentication nodes to provide audible feedback when an arming request is rejected for this reason.

• MQTT SMS Integration: We’ve expanded our MQTT capabilities. You can now trigger SMS messages via two new subscribe topics:

  /SMS/contact/{index}/message – Target a specific user.
  /SMS/group/{index}/message – Broadcast to an entire alarm group.

• Config Portability: You can now download and upload simple configuration files directly through the web interface.

🎨 UI & UX Improvements

• Cleaner Layout: We’ve removed the bottom slider for a more streamlined page layout.

• Cross-Platform Consistency: CSS and button styles have been updated to ensure text visibility and button alignment are consistent, specifically targeting fixes for users on macOS.

• SMS Status Checks: You can now query system status via SMS commands for better remote management.

🛠️ Under the Hood: Performance & Refactoring

A massive amount of work went into the codebase for this release to ensure the gateway remains fast and maintainable:

• HTTP Server Overhaul: The web server code was refactored, and handlers were moved into dedicated files.

• Memory Efficiency: Optimization of getPostData handling are faster and lighter on memory.

• uBS Library Redesign: Introduced common static buffers and enhanced the Free and Master maps for better resource management

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Download & Update

The full release is now live on GitHub.

👉 Download Version 1.5.6 here

Thanks to the community for the ongoing feedback and testing!

Gateway Release 1.5.5

Release 1.5.5 brings significant updates centered around ChibiOS migration and new communication features.

ChibiOS 21.11.x Migration

The gateway has been migrated from ChibiOS 20.3.x to the latest stable version 21.11.x, which is now the primary RTOS version for OHS_2. This major update required extensive work including migration to kernel 7, backporting custom Ethernet and RS485 changes, and updating the modem component to the new UART API. A float number display bug in the web interface was identified and fixed shortly after the initial migration.

SMS Command System

A new SMS command feature enables remote control through text messages using a hierarchical command dispatcher library. The system parses incoming SMS messages and routes them to specific handler functions that can execute actions and respond back to the requester. Security is enforced through phone number verification against stored contacts. The implementation includes a built-in help system that leverages the static command structure for user guidance.

MQTT Improvements

MQTT processing received several enhancements focused on reliability and functionality. A dedicated worker thread now handles incoming subscribe events, moving processing out of the data callback to follow lwIP best practices for ISR-like callback handling. A new /OHS/set/zone/refresh and /OHS/set/group/refresh subscribe topic was added, allowing all enabled zone or group states to be republished to MQTT on demand without requiring a payload.

Home Assistant Integration

Home Assistant auto-discovery support was added for sensors, enabling automatic configuration of OHS sensors that are directly supported by both platforms.

The release is available for download with the OHS_F437.bin firmware binary.