Increase NUS throughput

[kisvegabor]

Hi,

I've found this answer which states that the NUS throughput is around 2-4 kB/sec.

https://devzone.nordicsemi.com/f/nordic-q-a/27044/ble_uart-demo-throughput-is-very-slow/106219#106219

Really this is the maximum we can achieve? 1 Mbit/sec is 125 kB/sec. The 2-4 kB/sec is only 2-3% of it. It seems too much for the communication overheads.

Soft device: S132

Chip: nRF52832

  

[ketiljo]

Look into how BLE is working. It's meant be a low power radio protocol for battery operated devices, streaming high speed data will defeat the purpose. Of course, you can stream faster in short bursts if you need, but for constant high speed streaming, you should look into classic Bluetooth (BR/EDR) instead. 

[kisvegabor]

I see. Thank you for the confirmation.

[kisvegabor]

Hi,

I've just found this blog post: https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/throughput-and-long-range-demo

It speaks about > 500 kbit/sec throughput. I'm confused. NUS is really that slow and the throughput example is that fast?

[wangben85]

I had the similar  throughput test results over NUS. My test results it is only about 60kbps, it is much slower than the results tested in throughput example , that's why? i am also confused. Could you reply?