nrf mesh tutorial

[Blastka]

Hello. I have a misunderstanding about the work of the mesh network. Let's say I create a group of proxy nodes, example light switch, 2 server and 1 client, . I connect with help application "nrf mesh" with client. When sending a message from a phone, how is it spread? From server to server, or according to the client's network coverage area, or according to the phone network? I know one message is being sent. 

[tesc]

Hi,

The phone will be connected to a GATT proxy node, using a BLE connection. It uses that connection to send mesh packets into the mesh network, and to receive mesh packets from the network.

When the phone sends a mesh packet, it first goes over BLE GATT to the proxy node. Then it gets relayed as a normal Bluetooth mesh packet through the mesh network.

When a node sends a mesh packet addressed to the phone, the packet gets relayed as a normal Bluetooth mesh packet through the mesh network, until it reaches the GATT proxy node connected to the phone. The packet then gets sent over the BLE connection to the phone.

Normal mesh packets gets sent in BLE advertisements.

Regards,
Terje

[Blastka]

that is, the nodes are already operating as relay nodes in example light switch? 

[tesc]

Hi,

Yes. The nodes in the light switch example should have the relay feature already enabled by default.

Regards,
Terje