I get the error Not enough resources for operationhttps://devzone.nordicsemi.com/f/nordic-q-a/33130/i-get-the-error-not-enough-resources-for-operationHi ! I am using NRF52DK and I want send some daat with BLE. I have to send 800 bytes in BLE by packages of 25. So I tried this : BUT when I look my uart terminal, I can read only 3 times a &quot;0&quot; on err_code and &quot;19&quot; on 13 others times. So i woulden-USTelligent Community 13Fri, 06 Apr 2018 09:22:50 GMTRE: I get the error Not enough resources for operationhttps://devzone.nordicsemi.com/thread/127178?ContentTypeID=1Fri, 06 Apr 2018 09:22:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ec234f4f-79c8-41fc-a606-a2e53424c89dOsildir<p>It&#39;s weird. When I look the parametters of the fonction I can see I can send until 247-1-2 bytes ..<br />More, my 7 first packages of 25 bytes are recieved without problem on the smartphone.<br /><br />But thanks for the track, i&#39;ll try to reduce the lentgh of my package and call more times the function to see.</p><div style="clear:both;"></div>RE: I get the error Not enough resources for operationhttps://devzone.nordicsemi.com/thread/127155?ContentTypeID=1Fri, 06 Apr 2018 08:12:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5d19d77c-f50d-4526-86fc-64c3e55a2ea7Turbo J<p>The NRF52 can queue at most 6 or 7 TX packets. Also, ble_nus_send_string may not be able to send 25 bytes in a single packet - this requires Bluetooth 4.2 support on the central AFAIK.</p><div style="clear:both;"></div>