https://devzone.nordicsemi.com/f/nordic-q-a/32900/nrf52-unable-to-sent-more-than-7-messagesI am trying to sent multiple messages from nrf52dk but it seems that i can sent only 7 even if i put a delay between messages . Any suggestions ? for(int x =0;x &lt; numberofevents;x++){ char str[15]; sprintf(str, &quot;%d %d %d&quot;,x,typeofevent[x],events[x]en-USTelligent Community 13Fri, 30 Mar 2018 07:50:56 GMThttps://devzone.nordicsemi.com/thread/126438?ContentTypeID=1Fri, 30 Mar 2018 07:50:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:73f7b0ca-b0c6-499c-b0b2-783294adb385joe<p>you can use this event to know packet has be transferred ,then sent next packet .</p> <p></p> <p>&nbsp;BLE_GATTS_EVT_HVN_TX_COMPLETE&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;/**&lt; Handle Value Notification transmission complete.&nbsp;</p><div style="clear:both;"></div>