But the module is based on nRF52840 which is BT 5.0. +8dbM TX power and AE support. BMD 341 uses the same chipset...
You have to go for BMD for the low cost long range, 1dB better sensitivity but 4dB lower TX power so shorter range, about half. Before going for BMD look into the memory capacity. Are you going for lithium cell check the voltage supply which is narrowed. I do not have any use of the new features BT 5.1 comes with, at least not yet.
RudiRatlos, have you been able to clean up the code yet? If you post it, someone might help to do the last trick :-)