https://devzone.nordicsemi.com/f/nordic-q-a/31272/notification-speed-nrfconnect-vs-web-bluetoothHi, I&#39;m trying to understand the speed of the BLE communication. What I do in my infinite loop is a SAADC conversion then send the value to BLE (int16_t). In order to be able to see the data on nRF Connect app on Android, I&#39;m forced to add a nrf_delay_msen-USTelligent Community 13Fri, 09 Mar 2018 17:36:20 GMThttps://devzone.nordicsemi.com/thread/123748?ContentTypeID=1Fri, 09 Mar 2018 17:36:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65981403-25eb-43b2-aa4c-3445733f823eStephaneJ<p>I found my problem, it turn out it was only a matter of configuring&nbsp;<strong>MIN_CONN_INTERVAL</strong> and&nbsp;<span><strong>MAX_CONN_INTERVAL</strong> to increase the speed. Actually, <a href="https://devzone.nordicsemi.com/f/nordic-q-a/17547/update-characteristic-every-1-second-with-notification-while-ci-set-to-3-seconds/67465#67465">this answer</a> helped me understand the impact of the connection interval (do not confuse with advertising interval). Also, the speed can be increase a lot (x4 for me) using the connection priority.</span></p> <p><span>I have set the first at the minimum :&nbsp;BLE_GAP_CP_MIN_CONN_INTVL_MIN and the max to&nbsp;BLE_GAP_CP_MAX_CONN_INTVL_NONE</span></p> <p><span>With this I can go full speed but without the SAADC conversion. I have open a new ticket for a more specific request about using SAADC.</span></p><div style="clear:both;"></div>