Frequency of publishing mesh message

RE: Frequency of publishing mesh message

P Sumanth — Wed, 27 Nov 2019 05:20:39 GMT

For example take two nodes, node 1 is sending device and node 2 is receiving device.

As you mentioned above I am sending message frequently for every one second from node 1, but node 2 is only able to receive for once in three seconds. The size of application data is 10 bytes, I would like to know how to receive the data frequently.

RE: Frequency of publishing mesh message

Joakim Jakobsen — Tue, 26 Nov 2019 12:37:44 GMT

Hi.

You can find more information in this ticket:
https://devzone.nordicsemi.com/f/nordic-q-a/36389/mesh-unreliable-and-reliable

Could you add some more information about this. How often to you miss packets? Are multiple nodes missing a packet sent from a single node? Are you sure that the packet is sent at all?

RE: Frequency of publishing mesh message

P Sumanth — Fri, 22 Nov 2019 12:16:50 GMT

Hey,

I have found out the problem, From the above mentioned thread I got it and able to send frequently.

1. With out using NRF_MESH_EVT_TX_COMPLETE, If I am sending data less than 8 bytes, I am able to send message for every 1 second, If am sending data more than 8 bytes, it is taking three seconds to send data. How is the reliable packet re-transmitting timeout varies with packet length. Can I know how this is happening??

2. I am also facing one more problem i.e some times data is not received by other nodes even they are in near to sending devices

Regards

Sumanth

RE: Frequency of publishing mesh message

Joakim Jakobsen — Thu, 21 Nov 2019 14:36:26 GMT

Hi.

I don't have much information about your application so it's hard to say what is causing this error.

If you are sending a reliable message that isn't replied to, this message might occur. A reliable packet will be re-transmitted 3 times (configurable) before it's timeout. If you try to send another packet before this, you can get the Device busy error.

Please take a look at this previous thread:
https://devzone.nordicsemi.com/f/nordic-q-a/43897/how-to-use-nrf_mesh_evt_tx_complete-to-stop-device-busy-condition-mesh-3-1-s140-nrf52840

Best regards,
Joakim