BLE application with multihop

RE: BLE application with multihop

FormerMember — Thu, 01 Jun 2017 13:47:55 GMT

Yes, node 2 will need to have have two connections. If node 2 is a peripheral only , node 1 and 3 have to be centrals. S132 v.4.x.x supports multiple peripheral connections.

It is also an option that node 2 is a peripheral in the connection with node 3, and node 2 is a central in the connection with node 1.

RE: BLE application with multihop

FormerMember — Thu, 01 Jun 2017 13:43:23 GMT

It is only necessary to connect once (per connection), then the connections can remain connected, and communicate every connection interval. It is not necessary to initiate a connection for each transfer of data.

RE: BLE application with multihop

embedd_1 — Thu, 01 Jun 2017 13:21:59 GMT

Thanks @Kristin, for the link to the example project. I did not understand how this would work. Here, assume I have two connections for my node2.
Connection 1 (node 2 is acting as peripheral): Connection to node 1. Connection 2 (node 3 is acting as central) : Connection to node 3.

I want to know, when communicating, connection procedure needs to be completed ? For example, for communicating with node 3 everytime, first connection has to be established ? Or, both connections happen only once at the beginning, then they communicate at connection intervals.

RE: BLE application with multihop

FormerMember — Fri, 26 May 2017 11:32:52 GMT

What you can do is to create a relay, where module 1,2, and 3 are both centrals and peripherals, and information can thus be transferred through those modules.

In the SDK, the example ble_app_hrs_rscs_relay shows how to set up a relay.