Beacon 0.4 compatibility, Offline buffer functionality,

[an-erd]

Changes

• Added support for ble_beacon version 0.4 (Release "Lumbricus")
• Added a send interval to have a configurable minimal interval between MQTT messages
• Allow for using the bleMqttProxy without WiFi
• WDT now sending a MQTT message, if possible.
• WDT now taking all active beacons into account
• Added statistics screen (uptime, messages send, WiFi connections/failed connections)
• Added download functionality for ble_beacon offline buffer
• Added http server for status, request offline buffer download, csv file preparation and upload
• Uptime is send to MQTT server (configurable)

Fixes

• Fixed an issue with wrong data type for x/y/z accelerometer measurments. Negative values are now supported.

Optimization

• Cleanup and optimization of WDT for Reboot.
• Completely reworked display code, code cleanup, removed redundancy
• Display event handling restructured
• Display now uses SSD1306 on/off instead of blank screen

Deprecations

• Support for ble_beacon version <= 0.3 will be removed in near future

Additions

• Added InfluxDB/Grafana Scripts from Raspberry Pi MQTT endpoint

Development and Build Environment

• Split code to diverse files
• Cleanup variable naming and scope