@JDP @eptak @dittrich @AdamJP @christopherdro I just integrated CayenneLPP in TheThingsNetwork Arduino library v2.5.0, soon available from Arduino Library Manager.
See documentation here: https://www.thethingsnetwork.org/docs/devices/arduino/api/cayennelpp.html, and example here: https://github.com/TheThingsNetwork/arduino-device-lib/blob/master/examples/CayenneLPP/CayenneLPP.ino
Next is to have a JavaScript library that we can preload for payload functions, but for use with Cayenne this is already handy.
@joscha @arjanvanb see my comment on the lora-serialization library here: https://github.com/TheThingsNetwork/sdk/pull/19#issuecomment-286408287. Happy to work with you guys on integrating this too.