Sounds interesting.

I personally use the Home Assistant controller. Do i have to make any changes to the controller itself to recognize V_BLOB messages ?

I just created a repo [https://github.com/mkoniari/MySensorsE32] with instructions / modifications for the ΕΒΥΤΕ E22-400T30D [https://www.ebyte.com/en/product-view-news.html?id=939] module (LoRa SX1278 SX1276 433MHz rf Module)

Tested with MySensors v.2.3.2 and LoRa_E32_Series_Library [https://github.com/xreef/LoRa_E32_Series_Library] v1.5.0
Hope you find it useful