- 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.
- Trigger noise floor calibration every 2s and AGC reset every 30s in main loop.
- Reorder loop to match Dispatcher: calibrate + radio.loop() before AGC reset
and recvRaw() so RSSI is never sampled right after startReceive().
- Update protocol doc with calibration intervals and typical noise floor range.
- Variant platformio.ini updates (heltec_v3, rak4631).
- 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.
Adam Gessaman
João Brázio
ripplebiz
Marnick Hartgers
Liam Cottle
Don Patterson
taco
Rastislav Vysoky
ViezeVingertjes
Quency-D
Jan Pinkas
Matthias Wientapper