Measuring Bluetooth throughput on nRF5340PDK and Bluetooth tutorial

[Florin Mazilu]

Hi,

1. I was trying to measure the Bluetooth throughput of nRF5340PDK using the sample from ...\ncs\v1.4.0\nrf\samples\bluetooth\throughput, but from what I see in the requirements I need two boards. Is there anyway to modify it such that it will work with a Bluetooth terminal?

2. I'm very new to Bluetooth, can you help me with some tutorials and some documentation for the steps that I need to take to build my app? I just want my board to scan and connect to a PC/Android with a Bluetooth Terminal and start sending data, also Bluetooth should be configured for maximum throughput. If there is a sample that comes close to this description, that would be great!

Thank you!

[Simon]

It will not be possible to use the throughput sample with the Serial Bluetooth Terminal, since it does not use the Throughput Service UUID, and some other reasons I can elaborate on if you would like to.

However, I think you should be able to test this example without an additional board, using the nRF Connect for mobile App instead, but it requires some work and modifications of the BLE Throughput sample. You will only be able to measure the speed of the data sent from the nRF53 PDK to the mobile. The nRF53 PDK will act as as the master and scanner while the mobile will act as an advertiser and slave.

On nRF Connect for Mobile

• Configure the GATT server by adding the GATT Throughput Service, with write access to the characteristic
• Set up an advertiser with the throughput UUID in the advertising packet, since the scanner will filter out devices that does not contain this (not connect to them)

In the BLE throughput sample

• Remove the bt_throughput_read() function (which the master/nrf53 will initiat), since the nRF Connect for mobile app won't track the data received and the time it took

I have not tested this, and there may be more you have to do to make this work, that I haven't thought about.

The easiest option is to simply buy an nRF52 DK or an nRF52840 DK.

Best regards,

Simon