https://devzone.nordicsemi.com/f/nordic-q-a/46984/compatibility-of-nrf51-dongleHello, I have a very basic question: Are Bluetooth nRF5x products compatible with other manufacturers? For example, can I have an nRF51 dongle communicate with a Microchip RN4871 (which uses BLE 4.2)? Thank you in advance for your answer. Maximen-USTelligent Community 13Mon, 06 May 2019 19:15:32 GMThttps://devzone.nordicsemi.com/thread/185572?ContentTypeID=1Mon, 06 May 2019 19:15:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3ca22a5-e5b1-45d6-8730-f2a5659cc60aawneil<p>When working as a BLE device, it complies with the BLE specs.</p> <p>But it can also work in other modes - nRF24 compatibility being one of them.</p> <p>IIRC, this is referred to as &quot;proprietary&quot; - because it is!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/185571?ContentTypeID=1Mon, 06 May 2019 19:00:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d535a059-bbff-4df2-8602-0a04aa98561fMaxime<div class="lmt__side_container lmt__side_container--target"> <div class="lmt__translations_as_text"> <p class="lmt__translations_as_text__main_translation"><span>Thank you for your very complete answer! I just don&#39;t understand why in some datasheets (like nrf51422) it is written :</span></p> <p class="lmt__translations_as_text__main_translation">&quot;Fully on-air compatible with nRF24L/nRFAP-series&quot;</p> <p class="lmt__translations_as_text__main_translation"><span>I thought it meant they were only compatible with these chips. What does that mean? Thank you in advance</span></p> <div></div> <div></div> </div> </div><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/185565?ContentTypeID=1Mon, 06 May 2019 17:59:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2dfafaad-051d-4ca7-83a2-0bbe09424ff0awneil<p>Yes - that is the whole point of standards like Bluetooth!</p> <p>Although S130 is the only SoftDevice qualified to v4.2:&nbsp;</p> <p><a href="https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF51822">https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF51822</a></p> <p>See also:</p> <p><a href="https://devzone.nordicsemi.com/b/blog/posts/what-impact-does-the-deprecation-and-withdrawal-of-bluetooth-core-specification-v4-0-and-v4-1-have-on-your-current-and-future-products">https://devzone.nordicsemi.com/b/blog/posts/what-impact-does-the-deprecation-and-withdrawal-of-bluetooth-core-specification-v4-0-and-v4-1-have-on-your-current-and-future-products</a></p><div style="clear:both;"></div>