https://devzone.nordicsemi.com/f/nordic-q-a/66814/flash-the-xm122-xb122Hello I am currently working on a project with the XM122 / XB122 kit for an evaluation, the XM122 card integrates an nrf52840 MCU and a radar sensor; The goal of my project is to be able to control an LED through proximity detection, I would like thaten-USTelligent Community 13Wed, 07 Oct 2020 08:15:36 GMThttps://devzone.nordicsemi.com/thread/273383?ContentTypeID=1Wed, 07 Oct 2020 08:15:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9555ab80-c161-4f10-83c9-94783a2bd711awneil[quote userid="94004" url="~/f/nordic-q-a/66814/flash-the-xm122-xb122"]XM122 / XB122 kit[/quote] <p>You mean this:&nbsp;<a href="https://www.acconeer.com/products">https://www.acconeer.com/products</a>&nbsp;?</p> [quote userid="94004" url="~/f/nordic-q-a/66814/flash-the-xm122-xb122"]I got an existing project from XM122.emproject . I added ... [/quote] <p>Before adding or changing anything, did you manage to successfully build, load, and run that example project unmodified ?</p> <p>Have you contacted Acconeer for support - they will know about any specific details required for their particular setup.</p> <p>Have you managed to use the <strong>debugger</strong> to see what&#39;s going on?</p> <p>Before starting on this kit, did you spend time to gain familiarity with the nRF52840 on its own?</p><div style="clear:both;"></div>