TTN example on Lora-E5 mini https://github.com/bertrik/lora-e5/blob/master/basicmac/examples/basicmac-otaa/basicmac-otaa.ino

Making OTAA work with STM32 I-CUBE-LRWAN library

Arduino+LoRaWAN working on the Wio-E5 https://www.thethingsnetwork.org/forum/t/any-support-or-reported-use-for-the-new-stm32wle/40864/23