CONFIG_BT=y CONFIG_BT_CENTRAL=y CONFIG_BT_OTS=y CONFIG_BT_SMP=y CONFIG_BT_OTS_CLIENT=y CONFIG_BT_OTS_OACP_CHECKSUM_SUPPORT=y # This example requires more workqueue stack CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=8192 CONFIG_LOG=y CONFIG_ASSERT=y CONFIG_BT_L2CAP_TX_BUF_COUNT=8