https://devzone.nordicsemi.com/f/nordic-q-a/2024/l2cap-examplesHello, Is there anyone who has any example code for using L2CAP transfers instead of services? Something where the use of sd_ble_l2cap_tx() and the rx callback are used? Alternatively, is there a way to send large data structures using the BLE?en-USTelligent Community 13Mon, 31 Mar 2014 10:02:45 GMThttps://devzone.nordicsemi.com/thread/8693?ContentTypeID=1Mon, 31 Mar 2014 10:02:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:851831c4-f96e-46c0-9d4c-23d103ad548bOle Morten<p>There isn&#39;t really much magic to using the L2CAP API, but remember that you&#39;re still limited to the max MTU size of 23. In addition, most Central side APIs (except the S120) doesn&#39;t expose any L2CAP APIs, and hence it isn&#39;t really usable for most applications.</p> <p>To transfer large data, I&#39;d therefore recommend taking a look at <a href="https://devzone.nordicsemi.com/index.php/dealing-large-data-packet-s-through-ble">this question</a>, which explains our recommended approach. You may also have use in taking a look at <a href="https://github.com/NordicSemiconductor/nrf51-ble-app-lbs/tree/throughput-test-5.2.0">this example application</a>, as well as <a href="https://devzone.nordicsemi.com/index.php/how-do-i-calculate-throughput-for-a-ble-link">this question that covers throughput calculation</a>.</p><div style="clear:both;"></div>