Is there any way to use the Sdk with only a rvr.
With enough effort, any device that can communicate with RVR via the UART or BLE can be made to work, but the platforms on which we’ve provided SDKs are the easiest to start with. Several users on these forums have worked on alternative open-source SDKs that support other languages or hardware/software platforms. Take a look around and see what you find
I hope this answer helps,