https://devzone.nordicsemi.com/f/nordic-q-a/17078/title-arduino-no-acks-after-initial-sendHi All, BLE Nordic Stack: 0.9.7 Tiny Circuits: Ardunio + Nordic nRF8001 Board First time post, and hoping someone has run into the same issue that I am. I am in the process of writing a custom sensing ble device. I have created a custom UUID serviceen-USTelligent Community 13Tue, 18 Oct 2016 01:11:30 GMThttps://devzone.nordicsemi.com/thread/65494?ContentTypeID=1Tue, 18 Oct 2016 01:11:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4a7a3296-7385-4116-ab61-22b2beb3cab3Pascal<p>O.k., I figured out why this type of failure was occurring: If you don&#39;t have SET as well as NOTIFY the ACKs are not transmitted.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/65492?ContentTypeID=1Mon, 17 Oct 2016 16:01:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95b4367c-bf33-4c7f-b748-e1a0a2638f32Pascal<p>Hi run_ar, I apologize for the poorly formatted log file above. I am seeing two (ACI_EVT_DATA_CREDIT) events and then I never get anymore sent from the host. This occurs both on the Mac, and the LightBlue Application. Basic question; since this is a notification pipe and not an indicate pipe should there even be Credits / ACKs? I thought notifications were just send and forget?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/65491?ContentTypeID=1Mon, 17 Oct 2016 13:09:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab91aaf6-4c61-453e-9519-93006cee6badrun_ar<p>I cannot see any Datacredit events. Just your credits decrease to zero. You should also check the number of available credits before you call SendData.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/65493?ContentTypeID=1Sun, 16 Oct 2016 01:40:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:979ad65a-5c86-4ddf-8703-5983b8c06cd7Pascal<p>Sad to see the preview post doesn&#39;t map up to the actual post in terms of lines being displayed correctly. =(</p><div style="clear:both;"></div>