52840 ncs mesh question

[Carey]

hi,  customer use nrf52840 made mesh node. use nrf connect SDK v1.6. they have two quetion.

1:   How to set 125kb low speed and long rang in BT mesh network,

2:   How to enable low power mode in the SDK, do we have any low power mode exmple in the SDK?

[tesc]

Hi,

1: Bluetooth mesh builds on Bluetooth 4, and does not have long range / coded phy. This is per Bluetooth mesh specification.

2: You can configure a node to be a Low Power Node, through the configuration setting CONFIG_LOW_POWER=y. The LPN feature will then be available, and enabled on startup by default. You can then also turn it off and on when you want to, runtime, using bt_mesh_lpn_set().

Regards,
Terje

[tesc]

Hi,

A small update: There are no examples in the SDK where LPN is enabled, but for all examples you can enable LPN the way I described. Friend feature is enabled by default in all examples, so as long as you have a non-LPN node in the network the LPN node should be able to find a friend for keeping and relaying the incoming messages.

Regards,
Terje