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.

RF24Mesh/examples/RF24Mesh_Example/RF24Mesh_Example.ino

Lines 83 to 91 in 7c30deb

	// If a write fails, check connectivity to the mesh network
	if (!mesh.checkConnection()) {
	//refresh the network address
	Serial.println("Renewing Address");
	if (mesh.renewAddress() == MESH_DEFAULT_ADDRESS) {
	//If address renewal fails, reconfigure the radio and restart the mesh
	//This allows recovery from most if not all radio errors
	mesh.begin();
	}