https://devzone.nordicsemi.com/f/nordic-q-a/73765/converting-pca10040-to-pca10059After developing with an nRF52 832 DK (pca10040), our code builds and runs fine. But when we try to use the same code on the nRF52840 dongle it does&#39;nt work. We added flashing LEDs in the main function to get some feedback about whether or not the codeen-USTelligent Community 13Fri, 09 Apr 2021 09:02:07 GMThttps://devzone.nordicsemi.com/thread/303925?ContentTypeID=1Fri, 09 Apr 2021 09:02:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b08cb953-3c2a-4eed-81e0-acec0ae53df2Jared<p>Hi,</p> <p>The best work method when developing for nRF52840 dongle is to use the nRF52840 DK.&nbsp;For starters, the pin assignments and the softdevice that are typically used is different between nRF52832 and nRF52840. <a href="https://devzone.nordicsemi.com/f/nordic-q-a/33123/migrate-project-using-sdk14-1-s132-to-use-s140/127873#127873">This </a>answer contains some stuff&nbsp;that needs to be changed when moving from nRF52832 to nRF52840. I think the best and fastest way would be to copy your project into a SDK example project that already has been configured for the Dongle.</p> <p>There is also some differences between projects configured for the nRF52840 Dongle and the nRF52840 DK as highlighted by <a href="https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/nrf52840-dongle-programming-tutorial">this blog post</a>.&nbsp;</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>