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With the introduction of LR-FHSS to some regions, this DR might be
enabled depending the additional channels that are configured. This
function can be used by an ADR algorithm to determine which can be used.
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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/).

About

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

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