https://devzone.nordicsemi.com/f/nordic-q-a/10206/sdk-10-hrs-example---puttyI have been trying to establish a link that will feed sensor data into my com port via a Bluetooth uart bridge. I got my closest today by doing the following. Load SDK10 (or 9) ble_app_hrs on a nRF 51 DK Load SDK10 (or 9) ble_app_hrs_c on nRF dongleen-USTelligent Community 13Thu, 12 Nov 2015 10:09:55 GMThttps://devzone.nordicsemi.com/thread/37877?ContentTypeID=1Thu, 12 Nov 2015 10:09:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e9e571b4-a4c5-4a0e-a628-c02727177528Petter Myhre<p>It should only be sent once, if you get it over and over I suspect that it is because of resets. When you say disconnect the DK, do you mean disconnect the BLE link or disconnect the board from power? Can you try to go through <a href="https://devzone.nordicsemi.com/tutorials/4/testing-and-using-a-simple-ble-application/">this tutorial</a> and try to get that working first?</p><div style="clear:both;"></div>