/guides/nrf-connect-sdk-guides/b/software/posts/building-a-bluetooth-application-on-nrf-connect-sdk-part-3-optimizing-the-connectionThis is part 3 of the series Building a Bluetooth application on nRF Connect SDK You can find other parts here: Part 1 - Peripheral Role. Part 2 - Central Role. In Part 1 we covered the generic architecture, the peripheral ro...en-USTelligent Community 13 Non-Productionhttps://test-devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/software/posts/building-a-bluetooth-application-on-nrf-connect-sdk-part-3-optimizing-the-connectionWed, 27 Apr 2022 06:57:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3a5f1cd7-3aa9-4228-ab8c-0dfac04085d3Hung Bui0<p>Hi Rj Fang, please create a devzone Q&amp;A case and put a link to this blog. It&#39;s easier to&nbsp;discuss on the ticket than here.</p><img src="https://test-devzone.nordicsemi.com/aggbug?PostID=1423&AppID=28&AppType=Weblog&ContentType=0" width="1" height="1">https://test-devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/software/posts/building-a-bluetooth-application-on-nrf-connect-sdk-part-3-optimizing-the-connectionTue, 26 Apr 2022 21:34:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3a5f1cd7-3aa9-4228-ab8c-0dfac04085d3user944080<p>Hi Hung,<br /><br />This is really detailed and helpful guide! Thank you!<br /><br />I just had one question: In the screentshot you post, data length is always 273 neatly but when I was testing on my end, the data length varies, randomly range from (130-280) although I was always sending 244 bytes and on the central device it received 244 bytes neatly. Also, on the right columns of your screenshot it shows &quot;Rcvd handle value notification&quot; but on my side it is &quot;Encrypted packet decrypted incorrectly&quot;. Is this the reason of&nbsp; various data length? Thank you!<br /><br />Best,</p><img src="https://test-devzone.nordicsemi.com/aggbug?PostID=1423&AppID=28&AppType=Weblog&ContentType=0" width="1" height="1">