Why does UART require CRChttps://devzone.nordicsemi.com/f/nordic-q-a/22731/why-does-uart-require-crcIn this app by Nordic github.com/.../Bluefruit_LE_Connect_Android a cyclic redundancy check (CRC) is added to the payload byte array before writing it to the UART receiving characteristic. Is the CRC necessary? Doesn&#39;t the BLE stack add its ownen-USTelligent Community 13Wed, 14 Jun 2017 11:20:17 GMTRE: Why does UART require CRChttps://devzone.nordicsemi.com/thread/89369?ContentTypeID=1Wed, 14 Jun 2017 11:20:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c8e68ac8-f1a2-432f-ac5c-ac7562c86623FormerMember<p>The app you link to is not a Nordic app, the Nordic apps can be found from Nordics github page: <a href="https://github.com/NordicSemiconductor">https://github.com/NordicSemiconductor</a>, for the Android apps, search for <a href="https://github.com/NordicSemiconductor?utf8=%E2%9C%93&amp;q=android&amp;type=&amp;language=">android</a>.</p><div style="clear:both;"></div>