https://devzone.nordicsemi.com/f/nordic-q-a/3743/ble-acknowledgementhello ! do the BLE protocol acknowledge after sending/receiving pacquets ? I looked at all the documents gived by nordic but no answer ! thank you.en-USTelligent Community 13Mon, 08 Sep 2014 16:04:11 GMThttps://devzone.nordicsemi.com/thread/13578?ContentTypeID=1Mon, 08 Sep 2014 16:04:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9eb184cb-1f82-4711-829a-9cfdaeb58d99Petter Myhre<p>Yes. That is correct.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/13577?ContentTypeID=1Mon, 08 Sep 2014 10:35:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:64d92b04-ef0a-46d6-b629-b171024f39f4Saad<p>is that means that if the nRF51822 is connected by bluetooth, it&#39;s gonna receive and transmit an ACK level for every bluetooth transaction ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/13576?ContentTypeID=1Fri, 05 Sep 2014 14:54:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8823518c-3017-42e1-a251-f3722006fb73Petter Myhre<p>In a connection, all packets are link-level ACK-ed.</p><div style="clear:both;"></div>