/lorawan

Package lorawan provides structures and tools to read and write LoraWAN messages from and to a slice of bytes.

Primary LanguageGoMIT LicenseMIT

LoRaWAN (Go)

Tests GoDoc

Package lorawan provides structures and tools to read and write LoRaWAN 1.0 and 1.1 frames from and to a slice of bytes.

The following structures are implemented (+ fields):

PHYPayload    (MHDR | MACPayload | MIC)
MACPayload    (FHDR | FPort | FRMPayload)
FHDR          (DevAddr | FCtrl | FCnt | FOpts)

The Following message types (MType) are implemented:

  • JoinRequest
  • RejoinRequest
  • JoinAccept
  • UnconfirmedDataUp
  • UnconfirmedDataDown
  • ConfirmedDataUp
  • ConfirmedDataDown
  • Proprietary

The following MAC commands (and their optional payloads) are implemented:

  • ResetInd
  • ResetConf
  • LinkCheckReq
  • LinkCheckAns
  • LinkADRReq
  • LinkADRAns
  • DutyCycleReq
  • DutyCycleAns
  • RXParamSetupReq
  • RXParamSetupAns
  • DevStatusReq
  • DevStatusAns
  • NewChannelReq
  • NewChannelAns
  • RXTimingSetupReq
  • RXTimingSetupAns
  • TXParamSetupReq
  • TXParamSetupAns
  • DLChannelReq
  • DLChannelAns
  • RekeyInd
  • RekeyConf
  • ADRParamSetupReq
  • ADRParamSetupAns
  • DeviceTimeReq
  • DeviceTimeAns
  • ForceRejoinReq
  • RejoinParamSetupReq
  • RejoinParamSetupAns
  • PingSlotInfoReq
  • PingSlotInfoAns
  • PingSlotChannelReq
  • PingSlotChannelAns
  • BeaconFreqReq
  • BeaconFreqAns
  • DeviceModeInd
  • DeviceModeConf
  • Proprietary commands (0x80 - 0xFF) can be registered with RegisterProprietaryMACCommand

Sub-packages

  • airtime functions for calculating TX time-on-air
  • band ISM band configuration from the LoRaWAN Regional Parameters specification
  • backend Structs matching the LoRaWAN Backend Interface specification object
  • backend/joinserver LoRaWAN Backend Interface join-server interface implementation (http.Handler)
  • applayer/clocksync Application Layer Clock Synchronization over LoRaWAN
  • applayer/multicastsetup Application Layer Remote Multicast Setup over LoRaWAN
  • applayer/fragmentation Fragmented Data Block Transport over LoRaWAN
  • gps functions to handle Time <> GPS Epoch time conversion

Documentation

See https://godoc.org/github.com/brocaar/lorawan. There is also an examples section with usage examples. When using this package, knowledge about the LoRaWAN specification is needed. You can download the LoRaWAN specification here: https://lora-alliance.org/lorawan-for-developers

Support

For questions, feedback or support, please refer to the ChirpStack Community Forum: https://forum.chirpstack.io.

License

This package is distributed under the MIT license which can be found in LICENSE. LoRaWAN is a trademark of the LoRa Alliance Inc. (https://www.lora-alliance.org/).