https://devzone.nordicsemi.com/f/nordic-q-a/126356/how-can-i-understand-the-source-code-of-sample-bluetooth-peripheral-hids-keyboardI came from esp32 world. They provide detailed tutorials on their BLE samples, for exmaple: https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/api-guides/ble/get-started/ble-data-exchange.html . I found it&#39;s pretty hard to understand &quot;Bluetoothen-USTelligent Community 13Mon, 05 Jan 2026 10:19:59 GMThttps://devzone.nordicsemi.com/thread/557898?ContentTypeID=1Mon, 05 Jan 2026 10:19:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c7915120-a3ef-4dca-8546-e530289243d1Simonr<p>Hi</p> <p>I assume something along the lines of the DevAcademy was what you were looking for. Let me know if you&#39;re looking for something else in particular or if we can help you further in any way. I&#39;d say checking out the nRF Connect SDK course on DevAcademy would also be a good idea if you&#39;re new to our SDK solution and the Zephyr RTOS:&nbsp;<a href="https://academy.nordicsemi.com/courses/nrf-connect-sdk-fundamentals/">https://academy.nordicsemi.com/courses/nrf-connect-sdk-fundamentals/</a>&nbsp;</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/557862?ContentTypeID=1Sun, 04 Jan 2026 17:10:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93212d10-3342-4c75-9046-4d31729c5899ACuteCoder<p>I found this: <a href="https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-1-bluetooth-low-energy-introduction/">academy.nordicsemi.com/.../</a></p><div style="clear:both;"></div>