https://devzone.nordicsemi.com/f/nordic-q-a/70200/how-to-establish-connection-between-windows-application-with-nrf52840-moduleHello, My project application demands exchange the data from PC application(custom application developed by us) which is act as a server to the controller which is act as the client. we have chosen nrf52840 as bluetooth driver module which interfaceen-USTelligent Community 13Thu, 07 Jan 2021 09:56:02 GMThttps://devzone.nordicsemi.com/thread/287888?ContentTypeID=1Thu, 07 Jan 2021 09:56:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca1e478e-e78d-402f-a484-2414f1e35d2bmathan<p>Yeah PC using built-in bluetooth and I m using nrf52840 with Atsamd21j18A controller&nbsp; for data receiving purpose. Actually my application is get&nbsp;the image data from PC app to samd21 controller via bluetooth..</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/287886?ContentTypeID=1Thu, 07 Jan 2021 09:51:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3dd54b1d-5f8b-46b2-acfb-8bbf0263dc29awneil<p>I&#39;m not quite clear: is your PC app using the PC&#39;s built-in Bluetooth, or are you using the nRF52840 for that?</p> <p>The former will be covered in the Windows developer documentation</p> <p>eg,&nbsp;<a href="https://docs.microsoft.com/en-us/samples/microsoft/windows-universal-samples/bluetoothle/">docs.microsoft.com/.../</a></p> <p>For the latter, see:&nbsp;<a href="https://github.com/NordicSemiconductor/pc-ble-driver">github.com/.../pc-ble-driver</a></p><div style="clear:both;"></div>