We will be happy to support you regarding the radio-based firmware. The work together with you and @Thias on the node-wifi-mqtt.ino firmware was fun and lead to well documented code which is easy to follow. Let’s do the same for radio!
Currently, we have two radio-based node firmwares:
Generic Firmware based on the RadioHead library by Mike McCauley and the BERadio C++ library. This one is emitting measurement data in Bencode format using the BERadio specification and is currently used by @einsiedlerkrebs.
May i ask whether you chose the Hallard RFM69/LoRa WiFi Gateway eventually?
In turn, we would be interested in the custom PCB design you seem to have in the making. Do you have any more information about this?
With kind regards,