Firmware (LoRaWAN Modbus Gateway)

v1.9.0 - 2023-12-11

Added

• Parse objectJSON string to JSON object, allowing usage of items in it. Thus, the modbus server can be used with the "new" chirpstack JSON marshaller

Fixed

• Keep restarting modbus server by increasing the time between restart attempts, and not trigger the start limit watchdog

v1.8.2 - 2023-12-01

Changed

• Restart modbus server if connection to serial port is lost, instead of terminating the service.
• Ensure systemd always tries to restart the server (unless stopped by systemctl), but delay successive restarts up to 10s.

Fixed

• Return errcode (1) if the server exits due to an error in a service (e.g. Modbus service loses connection to its serial port).

v1.8.1 - 2023-11-13

Added

• Method for safely setting and getting LoRaWAN activations map, via its mutex
• Tests for LoRaWAN activations: JSON export, setting, getting

Changed

• Set and Get LoRaWAN activations map via its method, to avoid concurrent writes or iterations
  • Was possible when Store was saved while Activations were updated

v1.8.0 - 2023-05-24

Added

• Variable downlinks via Modbus
  • Set trigger register and (max) downlink length Len in modbus registers (16 bits/2 bytes each)
  • Write downlink content to registers behind trigger register (max Len registers)
  • Write <port><length> in hex to trigger register to send downlink
    • E.g. write 8009(hex) to trigger register to send 4 + first half of 5th register following it (=9 bytes) as a downlink to port 128 of the device

Changed

• Set downlink (trigger) register to 0 instead of 1
• Use modbus slaveID from config file
• Default modbus slaveID to 1
• Upgrade go dependencies

v1.7.0 - 2023-05-11

Added

• Chirpstack API calls via gRPC for future use

Changed

• Update go dependencies
  • Update jwt usage, fix token parser test

Deprecated

• Chirpstack service Profile no longer used for gateway creation

v1.6.1 - 2023-05-04

Changed

• No storage of downlink registers in register-map.json
  • Avoids issues with former downlink registers not losing their state after a config change

Fixed

• Bug where device uplinks would be missed because of MQTT legacy topic subscription

v1.6.0 2023-04-17

Added

• Add local gateway via REST to Chirpstack, determining gateway EUI from packet forwarder config.

v1.5.0 - 2023-04-04

Added

• Downlinks triggered by modbus register writes
  • Value in register will be written value if last downlink was successful, 0xFFFF if last downlink failed

Fixed

• Bug where 32-bit values wouldn't be stored properly in modbus registers

v1.4.1 - 2022-09-01

Fixed

• Bug where devices are not created in Chirpstack

v1.4.0 - 2022-08-31

Added

• Gateway Userinterface on port 8081

v1.3.1 - 2022-06-28

Fixed

• Handling of verbose flag
• verbose logging for config loading

v1.3.0 - 2021-02-01

Added

• Device activations are saved and restored

Changed

• Setup sets 777 access rights on config file and dir

1.2.1

Added

• devName config parameter to specify an optional device name

Fixed

• modbus "disabled" config parameter was always true

1.2.0

Added

• Allow to configure modbus serial connection parameters
  • modbus.dataBits: 8
  • modbus.parity: "even" # no, even (default), odd
  • modbus.stopBits: 1 # 1 (default), 1.5, 2

1.1.1

Added

• Support int32, uint32, float32 register types

Fixed

• Bug where register data is not saved

1.0.7

Fixed

• Allow async access on modbus registers. Might solve invalid value read-out.
• Persist data only once per minute
• Persist data on exit

1.0.6

Fixed

• Reconnect to MQTT on disconnect
• possible endless loop on MQTT receive

1.0.3

Fixed

• modbus register readout (was always 0)