gzp_dynamic_pairing

[zoroada]

This example I separately burned to the host and slave machine, how to send failed  ，This does not require burning softDevice  

[zoroada]

I use NRF52840. The module of NRF52840 I bought is in China.  

[ovrebekk]

Hi

Have you mounted the module on a PCB?

If yes, can you send me a picture of it?

Usually these modules need to be mounted on a PCB with sufficient grounding in order to achieve optimal performance, and the module manufacturer should provide instructions how to design the PCB. 

Have you tested with a standard nRF52840DK to see how the range compares?
If you can test with a DK it will show whether or not the issue is related to the hardware you are using. 

Best regards
Torbjørn