How to configure a node for control model?

[Sash]

How to configure a node for control model. I have used light switch on/off template to implement a control mode but i i don't know how to make a control logic for client. Have to use only client at a time but if i run the code i'm getting error and it run both client and sever at same time. I have merge the client and server program for control model but i'm getting a error as NRF_INVALID_STATE which is in nrf_mesh_init function.Please help me and thanks in advance.

[Bjørn Kvaale]

Which mesh sdk version are you currently using? Have you taken a look at the creating new models documentation? This documentation might also be helpful. What error are you currently receiving? As far as I know, we have not implemented a control model yet, but I have asked about this internally & will get back to you soon. 

[Sash]

Thanks for your reply. I'm using mesh sdk 2.1.1. For control model i used light switch control example by merge client and server main.c i'm getting error as NRF_INVALID_STATE. I have problem to initialize mesh stack & softdevice for both client and server same time. only for first time i can use mesh stack and softdevice if use the same for server i get this error.

I have added the log which i get error:

<t: 0>, mesh_softdevice_init.c, 117, Initializing SoftDevice...
<t: 0>, mesh_softdevice_init.c, 75, Enabling BLE...
<t: 16>, mesh_softdevice_init.c, 109, sd_ble_enable: app_ram_base should be adjusted to 0x20002DA0
<t: 58413>, main.c, 303, Initializing and adding models
<t: 63311>, main.c, 366, Device UUID : 0059ABCDEFABCDEFACCDEFABCDEFABCD
<t: 63318>, main.c, 443, ----- BLE Mesh Light Switch Server Demo -----
<t: 63325>, app_error_weak.c, 105, Mesh error 8 at 0x00000000 (:0)

[Sash]

Opcode status field 2 means INVALID MODEL. which means model merged (client & server) is not supported. While debugging the opcode model app status in node_setup.c gets failed.

[Bjørn Kvaale]

You will still need to add control functionality to your model though. You cannot just merge the client & server models and expect it to work. Unfortunately we do not have an example for a control model, but we do have a few more defined models in mesh sdk v2.2.0. Maybe it could help to take a look at those models?

[Sash]

while debugging the error not occurs on newly merged model. can you tell me which model can i refer in mesh sdk v2.2.0  

[Bjørn Kvaale]

What changes have you made so that you did not receive any error with the newly merged model? Have you upgraded to mesh sdk v2.2.0? You could try looking at the generic on off server & client models.

[Sash]

i'm trying to make simple on/off model without instance. In single element i have to provision client and server. By doing this previous i got Invalid Model status error, but now i'm getting status error as 0x01 (Invalid Address). Client gets bind but the opcode model app status becomes 1 instead of 0.Can you give any suggestion for that. I just merged simple on/off client and simple on/off server model. No changes have been made. I have not upgraded to latest version. 

[Sash]

I have rectified the error opcode status field:2. Now i can able to run client and server model (merged) in single element with meh sdk v2.1.1 for simple on/off model.Is control logic mandatory for control model? 

[Bjørn Kvaale]

Great to hear! I believe you will require some control logic to make it a proper control model. What was the fix to your issue?

[Sash]

modified some code in node_setup.c for that issue. could you give some idea for control logic to act as server and client model at same time

[Bjørn Kvaale]

The mesh specifications gives you more info on control models. There, they give an example of a cooling pump that circulates coolant in a fridge for example. The control logic would take a temperature value & according to that value, you either turn the pump on or off. For this use case, you could make some control logic to control when to turn the server or client leds on for example.

[Sash]

You saying that need to merge the models and have to implement control logic.Do i need to merge the client main.c and server main.c files?