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

• 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

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

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

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/).