I am using the Heltec LoRaWAN library with a Heltec WiFi LoRa (V2), a RG1xx Laird Gateway and Chirpstack as server.
I was able to connect the Heltec, and I am sending messages and receiving the corresponding ACK. But my problem is that I don´t know what I am sending, I don´t see in the code where I choose the payload.
In the server I am receiving always: AAECAw==
I think it is base64 but when I decode it, I don´t obtain nothing readable.
Can anyone help me? Thank you.