https://devzone.nordicsemi.com/f/nordic-q-a/124855/ncs-esbtx-to-nrfsdk17-esb-rxI’m developing an ESB-TX program using NCS v3.1.1 . Previously, I had developed an ESB-RX program using nRF SDK 17.0.2 . Now, when I use the TX code from the NCS SDK to communicate with the RX from the old SDK, I find that the data is transmitted successfullyen-USTelligent Community 13Thu, 09 Oct 2025 16:50:07 GMThttps://devzone.nordicsemi.com/thread/551039?ContentTypeID=1Thu, 09 Oct 2025 16:50:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ae0f500d-8fd2-4552-8c48-c1aacffb66a4Amanda Hsieh<p>Hi,&nbsp;</p> <p>We don&#39;t test that combination.&nbsp;Please use NCS for both TX and RX. Since t<span>he nRF5 SDK</span> is in&nbsp;maintenance mode, it will not get feature updates.&nbsp;<span>See&nbsp;</span>&nbsp;<a href="https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/nrf-connect-sdk-and-nrf5-sdk-statement">nRF Connect SDK and nRF5 SDK statement</a>&nbsp;</p> <p>Regards,<br />Amanda H.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/550894?ContentTypeID=1Wed, 08 Oct 2025 12:19:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5ad23191-2d7c-4ab6-88a0-2378b723ea56zoroada<div> <div> <div class="flex max-w-full flex-col grow"> <div dir="auto" data-message-author-role="assistant" data-message-id="09c7da72-4dac-4725-a83b-255deadaf8f7" data-message-model-slug="gpt-5"> <div> <div class="markdown prose dark:prose-invert w-full break-words light markdown-new-styling"> <p data-start="0" data-end="89" data-is-last-node="" data-is-only-node="">Is there any difference in ESB communication between the old and new versions of the SDK?</p> </div> </div> </div> </div> <div></div> <div class="mt-3 w-full empty:hidden"> <div class="text-center"></div> </div> </div> </div><div style="clear:both;"></div>