Mesh Networking

Projects General Guidance
1

I am working on creating a network of smart home type devices that I would like to be able to communicate with each other. All of the examples I have seen require a router in a tree topology instead of meshing. Is there a way that I can create a true mesh that doesn't need a controller?

The devices would be things like light switches, opening and closing window shades, and possibly controlling the thermostat with temperature sensors.

I have nrf24lO1 modules but I can use a different module if needed however I would prefer a module that works on 3.3v for battery operated devices.

2

There is a Mesh library for the nRF24L01+

I don't have any experience with it.

...R

3

This Arduino mesh network project works, and is independent of the type of radio. One of vanishingly few Instructables worth recommending.

If you are interested, I cleaned up the code by removing all the String garbage, replacing them with character arrays.

4

Thank you both for the help I really appreciate it.

5

jremington:
If you are interested, I cleaned up the code by removing all the String garbage, replacing them with character arrays.

Do you mean that you are the author of the Instructable ?

...R

6

BigHJones:
All of the examples I have seen require a router in a tree topology instead of meshing.

Thinking a little more about this it occurs to me that a system without a central server would require a great deal more intelligence to be built into every node. For example the cat-flap would need to know to ignore data from the oven, and vice versa.

...R

7

Do you mean that you are the author

I mean that I cleaned up the code. I don't know how to make that clearer.

8

jremington:
I mean that I cleaned up the code. I don't know how to make that clearer.

I guess what's confusing me is whether the code in the Instructable is your cleaned up code or the original code.

I've saved a link as it looks like something that may be useful in the future.

...R

9

The Instructable code makes extensive use of Strings, which I removed.

10

jremington:
The Instructable code makes extensive use of Strings, which I removed.

OK that is probably wise - have you posted your version somewhere?

...R