https://devzone.nordicsemi.com/f/nordic-q-a/114218/bluetoothExcuse me, how many bytes is the maximum of a packet of Bluetooth data now? Thank youen-USTelligent Community 13Mon, 26 Aug 2024 12:29:07 GMThttps://devzone.nordicsemi.com/thread/499754?ContentTypeID=1Mon, 26 Aug 2024 12:29:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3f0a1d4-7f21-42b6-b240-9db09b4983d4Hung Bui<p>Hi again,&nbsp;<br />But you need to tell us what you want to know. The current ATT_MTU is 498 but the data length max is 251.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/499748?ContentTypeID=1Mon, 26 Aug 2024 12:16:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:40ecb0b5-441b-45cd-a42b-8016ee39bb96liuyanfeng<p>You can just tell me what it is. Like 244, we don&#39;t need so much information, thank you,</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/499730?ContentTypeID=1Mon, 26 Aug 2024 11:50:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4c995d91-9317-4ed6-a2cf-e57d39ad5cfeHung Bui<p>Hi Liuyanfeng,&nbsp;<br />Please be more specific on what exact packet you are asking about. Is it radio on air packet, or ATT MTU packet.&nbsp;<br />Please take a look at section 2.1 of this blog where I discussed a bit about the packet size:&nbsp;<br /><a href="https://devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/software/posts/building-a-bluetooth-application-on-nrf-connect-sdk-part-3-optimizing-the-connection">Building a Bluetooth application on nRF Connect SDK - Part 3 Optimizing the connection</a></p> <p>The&nbsp;numbers in the blog can be out of date. I would suggest to take a look at the nrf\sampes\bluetooth\throughput sample to see the configuration. It usually use the maximum supported configuration.&nbsp;</p><div style="clear:both;"></div>