https://devzone.nordicsemi.com/f/nordic-q-a/24634/send-2-samples-12-bytes-each-every-2ms-in-nrf52dkHi! I&#39;m using nrf52 DK as central and nrf52dk as a peripheral device. Connection interval 10ms. I want to send 10 samples each of 12 bytes every 10ms connection interval. But is it possible to push 2 samples every 2ms? Or is it that I need to wait foren-USTelligent Community 13Fri, 25 Aug 2017 11:49:58 GMThttps://devzone.nordicsemi.com/thread/96969?ContentTypeID=1Fri, 25 Aug 2017 11:49:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a024ab86-7deb-4c29-920d-e35fe331ca10run_ar<p>Use the length you want :) In addition you could look at Data Length Extension, although it&#39;s not really needed in your case.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/96970?ContentTypeID=1Fri, 25 Aug 2017 10:19:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7de93929-a993-47a5-ba30-880dda0a43a6Nivetha<p>Okay. Got it. Thanks! My packet size is 48 bytes. I can wrap all the 10 samples within 48 bytes. So, the att_mtu size should be 48 + 3bytes for over head, is it? Or we should only set 23, 158, 247?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/96968?ContentTypeID=1Fri, 25 Aug 2017 09:05:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cb43ca49-61e5-4aad-bf4c-c76416e422a4run_ar<p>The event lenght is not the connection interval. It is used by the scheduler; <em>The time set aside for this connection on every connection interval in 1.25 ms units.</em></p> <p>So I&#39;m afraid you have to buffer the samples and send them all in the first available connection event. Just make sure you have enough buffer space: hvn_tx_queue_size. Note that it might make sense to groupe the samples and send longer att mtu&#39;s.</p><div style="clear:both;"></div>