I succeeded in implementing the desired function using the NRF52832 development board.
I had to modify the project to include the NUS function of NRF52810.
However, it has the following problems.
1. Bluetooth search is possible, but the connection is lost after connection.

What did I do wrong?
Attachment: project file
20210911 [NOK] nRF5_SDK_17.0.2_d674dde__NRF52810__DEVICE NOT SUPPORT.zip