Missing node will disable all children.

[JonasZaverka]

Hi, Im trying to implement this awesome library into my bachelor thesis. I ran into an issue. In this picture all is working fine. Now I’m going to disable nodID:4 Children of nodeID:4 will not get a valid address. All comunication fails. mesh.renewAddress() and mesh.begin(); doesnt help.

This persist until nodeID:4 is back online.

After nodeID:4 is back online. After some time, all is working fine.

But for me it’s quite a problem since losing a node is not an unrealistic problem. Is this issue with my code or setup. Or perhaps this scenario will not work?

Thank you, i can send code if anybody suggests that this should work fine but my code is at fault :)

Thank you very much for your work.

[TMRh20]

Nodes need to verify their connection periodically. If you look at the examples, you will see exactly this.

I have my nodes checking their connection every 30 seconds, while the example verifies the connection whenever a write fails.

You most likely have something wrong in your code, but this is not the place to debug your code, rather to report issues with the library.

[JonasZaverka]

if i dont verify the connection nothing happens. After i try sending something it fails and tries to reconnect. Than it gets this weird address. Honestly i ran into memory issues a little later. It may be that. But if i understood correctly. If one of the nodes goes missing the library should handle reassigning new addresses to all of the missing nodes children. Is that correct ?

[2bndy5]

If one of the nodes goes missing the library should handle reassigning new addresses to all of the missing nodes children. Is that correct ?

The correct answer is no because you have to implement the connectivity handling in user code. See any of the examples and look at where renewAddress() is used. https://github.com/nRF24/RF24Mesh/blob/7c30debee4b91d63c27847213eaf10d413a10212/examples/RF24Mesh_Example/RF24Mesh_Example.ino#L83-L91