Re: Complete Sample Demo for BluetoothMesh like Nordic Semiconductor "Light_Switch"


Vikrant More <vikrant8051@...>
 

Currently noob like me don't known how to correctly fine tuned or configure or write code from scratch using Zephyr so that it will exactly work like Nordic Semiconductor Mesh Light_Switch Demo. 

Hence I am requesting you to provide simple demo for nrf52840-PDK board. To find out what nordic has done differently, person should have knowledge of entire stack  & currently you are only one who knows everything. 

Coding style in Zephyr Mesh & nordic Mesh SDK is not simple C. It is objective C, so very difficult to visualize everything.

Plus #NordicSemiconductor code is very complicated compare to your coding style. 

I agree with you that coexistence of GATT & ADV Bearer may be reason of less reliability of data transfer.

So currently, I can do is wait till nordic implement GATT Bearer in their Mesh SDK to check overall performance or till they release Android App with ADV-provisioner utility.


On Dec 5, 2017 9:19 PM, "Johan Hedberg" <johan.hedberg@...> wrote:
Hi Vikrant,

On Tue, Dec 05, 2017, Vikrant More wrote:
> But as per my testing, zephyr publishing reliability is not good even if I
> call bt_mesh_model_publish() from thread which wakes up on interrupt.

This is not really useful information without some more details. What
Publish Retransmit and Network Transmit states does the Nordic SDK use?
What are the values of these states on the Zephyr side? There are many
parameters that can be fine-tuned which influence message delivery
reliability, and these have very little to do with the actual
implementation and a lot to do with how you've configured your nodes.
Also note that having GATT connections inevitably lowers the duty-cycle
on the advertising bearer, so your nodes are much more likely to loose
packets in that case.

Johan

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