Problem about LPN and Friend Node in mesh

[Solin]

Hi,

I notice that inside the MESH SDK, "Friend" is actual a hex file from zephyr, which I cannot modify. My goal is to set a "Friend" to connect more than 1 LPN (low power node), e.g. 1 Friend with 3-5 LPN. However, it seems like 1 Friend can only have 1 LPN now? Secondly, I need to connect sensors/UART and other features on Friend node, please advise how to do so, thanks!

[Hung Bui]

Hi Solin, 

It's actually possible to build and modify the Friend node from Zephyr. The only limitation is that it's not Nordic's code and maybe quite different in term of the code structure.

You can find the build instruction here. You may want to get started here. Use "nrf52_pca10040" as the board name for build command. 

For your particular requirement, you can change the number of LPN the friend node supports here. (You need to rebuild the Friend repo)