C# PC app development with nRF52840-dongle

[Moshe Baker]

Our purpose is to integrate BLE 5 in our embedded application, and do it quickly.. We basically need to send/receive data with maximum throughput. 

Per thread below, we are planning to use the ble_app_uart on the embedded side.

For developing the PC app side, assume we are using the nRF52840-dongle you recommended in thread below, where can I find a code example in C# for doing this, implementing the NUS profile? I see there is JS/Node.js code of nrf-connect, but this is somewhat distant from our .NET environment.

Also i see in the Android app - nRF Toolbox - there is a UART app. So basically I'm looking for an equivalent C#/Windows code sample.

Does the pc-ble-driver in C++ cover the NUS service?

Spun off from:

Getting started with MBN52832 BLE Module

[Moshe Baker]

I tried all of these and still the same. Can you state the exact hex file to use for the dongle? 

[Einar Thorsrud]

Hi,

Let's say you are using the v5 API instead (I don't recomend v6, since we do not use it yet and do not test it), then you should use connectivity_4.1.1_usb_with_s132_5.1.0.hex. You can use the heart_rate_collector_sd_api_v5.exe example to see that it works.

[Moshe Baker]

Thanks Einar!! it is working for me now! I am receiving notifications from the HRM! You made my weekend :)

[Einar Thorsrud]

I am glad to hear that. Have a nice weekend

[Moshe Baker]

Hi Einar, I am now trying to modify the HRM app for achieving max throughput test. I set the HRM timer to send notification every 100ms (instead of 1000ms), and tried to send 244 bytes instead of only 2 bytes, per measurement. I can actually see the data is sent when checking on nRF Connect on my Android phone log. But the pc-ble-driver is only receiving 20 bytes out of this. Where do I need to change the pc-ble-driver to receive all data? Am I going the right way here for a throughput test? I also tried to set a bigger MTU size by setting BLE_GATT_ATT_MTU_DEFAULT to 244, but this failed. What about the connection-interval? Please comment on these.