Reply To: LORA CERTIFICATION with xDOT module

A network server can send a packet to the end-device to enter a test mode of operation. Test Mode can enable/disable ACK and echo payloads back to the test server. ADR can be used to change the datarate of the end-device.

TestMode is implemented in the LoRaWAN stack, the reference Semtech stack shows the client side functionality starting at line 705.

https://github.com/Lora-net/LoRaMac-node/blob/7c3953ea531bdd0ae194f91463eec38d4d4f93b1/src/apps/LoRaMac/classA/B-L072Z-LRWAN1/main.c

Full test documentation is available for LoRa Alliance members at https://lora-alliance.org/