https://devzone.nordicsemi.com/f/nordic-q-a/62586/xamarin-nuget-plugin-ble-uuid-sHi, I build an Xamarin bluetooth application and I needs Plugin BLE nuget package Service, Characteristic and Descriptor UUID numbers. My device is nRF52840. I would like geting origin UUID&#39;s I succes using Bluetooth Service UUID = 6E400001-B5A3-F393en-USTelligent Community 13Mon, 15 Jun 2020 11:11:48 GMThttps://devzone.nordicsemi.com/thread/254978?ContentTypeID=1Mon, 15 Jun 2020 11:11:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e7dc2fef-7758-4650-9566-422290e88260Kenneth<p>We do not have any experience with Xamarin for development. Typically if you can&#39;t receive data from the nRF52840 when running the ble app uart example, then the notifications have not been enabled (you need to write to the CCCD to enable notifications) on the nRF52840:<br /><a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/ble_sdk_app_nus_eval.html#project_uart_nus_eval_test">https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/ble_sdk_app_nus_eval.html#project_uart_nus_eval_test</a></p><div style="clear:both;"></div>