- Updated the logic for JWT token timestamp validation to allow reconnection if the system clock is set, even when NTP sync is not confirmed. This change prevents unnecessary connection blocks after a successful NTP sync at boot.
- Introduced a check to determine if the system clock is clearly set, improving the robustness of the connection maintenance process.
- Introduced a new method `runCriticalMemoryCheckAndRecovery()` to streamline memory checks and recovery processes.
- Added member variables to track fragmentation pressure and the last critical check run time.
- Removed redundant critical memory check logic from `mqttTaskLoop()` and `loop()`, enhancing code clarity and maintainability.
- Improved logging and pressure tracking for better diagnostics during memory management.
Resolve conflict in variants/heltec_v4/platformio.ini by taking
origin/dev version for PA pin comments and SX126X_RX_BOOSTED_GAIN.
Co-authored-by: Cursor <cursoragent@cursor.com>
- Added new member variables to track WiFi connection state and implement exponential backoff for reconnection attempts.
- Refactored WiFi monitoring logic into a dedicated function to streamline the mqttTaskLoop.
- Introduced fragmentation recovery logic to handle memory pressure more effectively, ensuring MQTT clients are recreated when necessary.
- Reset reconnect backoff attempts upon successful connection to the main broker.
These changes aim to improve the stability and performance of the MQTTBridge under varying network conditions.
- Introduced PSRAM-aware memory allocation functions (`psram_malloc` and `psram_free`) to optimize memory usage on ESP32 boards with external RAM.
- Updated MQTTBridge initialization to allocate JWT token buffers and raw data storage in PSRAM when available.
- Enhanced FreeRTOS queue creation to utilize PSRAM for storage, improving memory efficiency.
- Implemented dynamic allocation for JSON buffers in PSRAM during status publishing and packet handling, reducing stack usage.
- Ensured proper memory cleanup for PSRAM allocations in the `end` method to prevent memory leaks.
This update aims to enhance performance and stability in memory-constrained environments by leveraging available PSRAM resources.
- Implemented PSRAM availability checks and logging to assist in debugging memory fragmentation on boards with external RAM.
- Enhanced logging to provide detailed information about PSRAM size, free memory, and initialization status.
- Updated platformio.ini files across multiple variants to remove obsolete mbedTLS configuration flags, streamlining the build process.
- Added new build flags for mbedTLS: CONFIG_MBEDTLS_ASYMMETRIC_CONTENT_LEN, CONFIG_MBEDTLS_SSL_IN_CONTENT_LEN, and CONFIG_MBEDTLS_SSL_OUT_CONTENT_LEN.
- These changes improve the handling of SSL content lengths, optimizing performance for various hardware variants.
- Updated source filters to include MQTTBridge and MQTTMessageBuilder in relevant configurations.
- Added memory debugging features to log heap usage and fragmentation recovery for MQTT clients.
- Introduced `recreateMqttClientsForFragmentationRecovery()` to manage MQTT client lifecycles and reduce memory fragmentation.
- Updated critical memory checks to log detailed heap statistics and active MQTT client counts.
- Included new debug logging for memory status every 60 seconds when memory debugging is enabled.
This update aims to improve stability and performance in memory-constrained environments.
- Main broker: only allocate _mqtt_client when custom broker configured
(analyzer-only saves one PsychicMqttClient). Reconnect main broker after
forced disconnect with 30s throttle; set last_attempt on disconnect so
throttle applies and avoids reconnect storms on flaky WiFi.
- Analyzer clients: call disconnect() when WiFi transitions to disconnected
so ESP-IDF frees MQTT buffers (it does not free on WiFi drop). Reduces
fragmentation and Max drop after disconnect/reconnect cycles.
- get wifi.status: report WiFi uptime (Xd Xh Xm Xs) when WITH_MQTT_BRIDGE.
Track connect time in bridge; backfill when already connected at first check.
- get mqtt.status: show msgs on/off, broker (connected/disconnected/n/a),
analyzer US/EU (connected/disconnected/off), and queue count.
Note: PsychicMqttClient change (register event only on first client creation)
belongs in the library repo if committed separately.
- Updated comments to specify that the Dispatcher owns the packet memory and should handle freeing.
- Removed unnecessary calls to free queued packets in the MQTTBridge, ensuring only references are discarded.
- Enhanced code clarity regarding packet lifecycle management in the end and processPacketQueue methods.
- Introduced `getPacketsRecvErrors()` method in `Dispatcher` to track receive errors.
- Updated `buildStatusMessage()` in `MQTTMessageBuilder` to include `recv_errors` parameter.
- Modified `publishStatus()` in `MQTTBridge` to retrieve and send receive error statistics.
- Adjusted `RadioLibWrappers` to override `getPacketsRecvErrors()` for consistency.
Adam Gessaman