Hello Paul, just a note to say that there are 3 formats, in order of date of firmware release:
- JeeLib Classic (shipped as standard on all our units up to November this year)
- JeeLib Native (thanks to Robert Wall, developed to enable continuous monitoring on the emonPi)
- LowPowerLabs (latest available with the emonTx4, adopted to make use of acknowledgment and retry mechanism).
Robert posted a useful comparison of these here: Emon Tx V4 and 433MHz Radio Formats
and there’s more on them in the docs too: Technical Guide — OpenEnergyMonitor 0.0.1 documentation
JeeLib Native and LowPowerLabs are very similar in that they use the RFM69 native functionality - but they are not compatible due to different settings. I will be releasing emonPi and emonTx3 firmware that works with the LowPowerLabs format soon, so I might advise waiting for that.