https://devzone.nordicsemi.com/f/nordic-q-a/49792/threadDoes nRF52840 only support BLE5.0? Can it be backward compatible, such as support BLE4.0?en-USTelligent Community 13Tue, 16 Jul 2019 01:38:26 GMThttps://devzone.nordicsemi.com/thread/198576?ContentTypeID=1Tue, 16 Jul 2019 01:38:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6236201c-1fd3-4dfa-8ead-269b53bc6aa7zhangchi<p>Thank you for your reply.</p> <p>I will pay attention to the title next time.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/198459?ContentTypeID=1Mon, 15 Jul 2019 12:34:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:742753ac-3a9d-43c1-9625-ec08ebf5713aawneil<p>You win the prize for &quot;Most Uninformative Thread Title&quot; !</p> <p>Twice:&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/49791/thread">https://devzone.nordicsemi.com/f/nordic-q-a/49791/thread</a></p> [quote userid="81643" url="~/f/nordic-q-a/49792/thread"]Can it be backward compatible[/quote] <p><em>By definition</em>, BLE 5 is backwards-compatible.</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/48964/connection-between-nrf52-and-android-bluetooth/194816#194816">https://devzone.nordicsemi.com/f/nordic-q-a/48964/connection-between-nrf52-and-android-bluetooth/194816#194816</a></p><div style="clear:both;"></div>