NRF52 BLE HID packet rate problem

RE: NRF52 BLE HID packet rate problem

Simonr — Wed, 17 Feb 2021 07:58:48 GMT

Okay, I would still suggest checking out the guide/blog post I linked to, as it also shows you ow you can increase the number of packets per connection and minimize the time between each packet and connection interval. A few things you should take a look at:

Which PHY are you using?
Check out the Inter Frame Space and "max number of packets per connection event

Best regards,

Simon

RE: NRF52 BLE HID packet rate problem

Dudarion — Tue, 16 Feb 2021 14:49:26 GMT

Thank you for your answer, but my problem is not in number of bytes per second, but in number of packets per second. My packets are small (you are right, it is 10 bytes), but I need to send them to my PC in realtime with maximum rate.

And I know that usual BLE mouse works in much higher rates, than 34 pps, so the problem should be in my software.

RE: NRF52 BLE HID packet rate problem

Simonr — Tue, 16 Feb 2021 13:46:39 GMT

The number of packets you will be able to send per second will be limited by the size of these packets. Am I correct in assuming each packet is 10 bytes? In a connection between two Nordic devices there will (in theory) not be any upper limit on the number of packets that can be sent in one connection interval, other than the total time it takes to send them. Depending on the device communicating with, there will likely be some limitations to this though

You can check out this guide for some general ideas for how to best maximize the throughput of your BLE application.

Best regards,

Simon