How to design a mesh network?

[yafis]

Hi Nordic devzone... I want to form a ble mesh network through which a Central can reach any Peripheral in the network, if not directly then through other peripheral. The network consists of a Central device which send control commands to many sensor like nodes in the network. These nodes are spread out, so its possible that a node is not in range of the central. To overcome this we plan to do mesh. I had a look at the Nordic nRF51-ble-bcast-mesh, but flooding the network with broadcast packets doesnt seem like a very good idea. So can anybody help me out with a good fix for this? or guide me in the right direction? Thanks..!!

[David Edwin]

It should be possible to setup a mesh/tree that is connected and can propagate the packets on a connected network. However this does require the use of all the roles, i.e. central, peripheral, advertiser and scanner. The S130 can be used for this.

Can you comment on your needs for the mesh and why a broadcast mesh would not work for you ?

Edit: You can also look at the fruityMesh which is a connection oriented mesh github.com/.../wiki and does exactly the above.

[Renato Silva]

Yafis, Did you resolv this question to create a net mesh using nRFXX?

[Renato Silva]

I am trying to setup a mesh network. The application has a central and many peripherals.

The central must to sent messages to all peripherals and the peripherals must to reply to central.

Central <-----> peripherals

Some times, the peripherals needs to send information to others peripherals.

Peripherals <---> Peripherals

My doubt is: Can I to change multilink example code to do it?

In multilink example the central send message to all peripherals and receive his answer. But there are not communiction between peripherals.

Can you help to resolv this?

[Rorisang]

Hi, Renato. Do you have the solution. I need to set up a wireless mesh network too using the nRF52840 and i am completely stuck.

[awneil]

Note that Renato's last post was 9 months ago.

Since then, the Standard Bluetooth 5 Mesh has been released.

See the nRF5 SDK for Mesh:

http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk/dita/sdk/mesh_sdk.html?cp=4_1

The nRF52840 also supports IEEE 802.15.4 - so it can also do other mesh networks such as Thread an Zigbee:

http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk/dita/sdk/thread_zigbee_sdk.html?cp=4_2