ESP-BLE-MESH How to add a custom service and characteristics ?

[wintu.vogga]

Hi,

I am developing firmware for BLE mesh node (multi channel smart relay) for a home automation project. I am hitting a road block on one thing. I want to communicate with the device before I provision it in to the mesh network. The reason is I want user to test few things like checking which channel is which. I can see only provisioning service (UUID: 0x1827). Which as per what I see cannot be used for sending custom data PDUs.

Is there any way I can add a new GATT service in to the BLE mesh node for custom communication ?

Regards,

Winston