zephyr/tests/bluetooth/shell
..
src
Makefile
prj_nble.conf
prj_nimble.conf
prj.conf
prj.mdef
README
testcase.ini

First serial line is multiplexed with qemu monitor and bluetooth shell
(btshell) is running there. Use help to check list of commands.

For building shell with Nordic Bluetooth Low Energy stack (NBLE)
use prj_nble.conf:

$ make CONF_FILE=prj_nble.conf BOARD=arduino_101