I just got a lora node RAK811 and config it following the website https://www.hackster.io/naresh-krish/getting-started-with-the-rak811-lora-node-67f157 to connect node to TTN.
When I connect the node with my computer and check the serial port, I found at commands are useless.
The node just showing “OTAA Join Start…”.
The messages send to the node are not work because there is no response to the message.
And I have sent at command to change the AppEUI and APPKey, but there is no response and change on the serial port.
I wondering how can I change the parameter? Also, how to reset the RAK811?