Big ESP32 / SX127x topic part 1

I have made a LoRa Single Channel gateway, this works perfectly with the ttgo, but I can’t get the ttgo and heltec to work with the lmic code… It is stuck at EV_JOINING…

EDIT: Got the ABP working, but only when I simulate a downlink, then it will send Hello World, when I send nothing, nothing will be send by the node.