I have a slightly modified OTAA sketch based on the BASICMAC example that established an OTAA connection after many many attempts, and only occasionally can successfully transmit a packet.
I host my own gateway and have an SAMD-21 Pro RF LoRaWAN board that works perfectly. But The Thing Plus ExpLoRaBLE has been a nightmare for me.
Does anyone have a basic TTN OTAA sketch that consistently and reliably works for them when using this board? Would you share, I am losing too many of my gray hairs already. Thanks in advance.