https://devzone.nordicsemi.com/f/nordic-q-a/26303/nus-data-rate-reduced-very-much-in-sdk14-0-compared-to-sdk12-3Hi, I am trying to send data from a peripheral with sampling rate of 125 through ble by using nus service. i was able to send all the data (ie. 125 * 4 bytes ) without any data loss in sdk12.3 s132. but when i moved to sdk 14.0, i am losing too muchen-USTelligent Community 13Tue, 14 Nov 2017 05:00:21 GMThttps://devzone.nordicsemi.com/thread/103529?ContentTypeID=1Tue, 14 Nov 2017 05:00:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:650b661b-1aba-4a10-800c-4d27a3560dbfmonster_geek<p>thanks siigurd(sorry for the late reply :|) it did help me, and also the NRF_SDH_BLE_GAP_EVENT_LENGTH was 3.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/103528?ContentTypeID=1Thu, 26 Oct 2017 15:18:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:384f44c1-3e8f-4c49-9105-b08a5bd2e5b8Sigurd<p>Hi,</p> <p>Are you getting any error-codes when sending data with ble_nus_string_send()? Could you try to increase the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v5.0.0/structble__gatts__conn__cfg__t.html?cp=2_3_1_1_0_2_4_4_0_0#ae2a1156d8b06a6ccc70696f2372226cc"> hvn_tx_queue_size</a>?</p> <p>See <a href="https://devzone.nordicsemi.com/question/174497/ble_nus_string_send-error-codes/">this</a> and <a href="https://devzone.nordicsemi.com/question/162723/porting-code-from-s332-v20-to-v40-ble_error_no_tx_packets/?answer=162751#post-id-162751">this post</a> for more information.</p><div style="clear:both;"></div>