https://devzone.nordicsemi.com/f/nordic-q-a/29313/how-ble-worksHello. I need some documents that i can understand what is going on on the backward when/while two devices are communicating with each other or when/while a device advertising. I looked up to the bluetooth sig core spect a little but as you knowen-USTelligent Community 13Tue, 07 Jul 2020 08:13:37 GMThttps://devzone.nordicsemi.com/thread/258739?ContentTypeID=1Tue, 07 Jul 2020 08:13:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b23d4d52-fb03-431a-a8d7-291782ca80d8Nathan-ma<p>Thank you for the great advice!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/116628?ContentTypeID=1Wed, 10 Jan 2018 09:44:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:83766848-2638-4ffb-a9be-ff55b8d048b0Hung Bui<p>Maybe my blog series could help :</p> <p><a href="https://devzone.nordicsemi.com/blogs/782/bluetooth-smart-and-the-nordics-softdevices-part-1/">1. Bluetooth Smart and the Nordic&#39;s Softdevices - Part 1 GAP Advertising</a></p> <p><a href="https://devzone.nordicsemi.com/blogs/841/bluetooth-smart-and-the-nordics-softdevice-part-2-/">2. Bluetooth Smart and the Nordic&#39;s Softdevices - Part 2 Connection</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/116627?ContentTypeID=1Tue, 09 Jan 2018 15:45:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f4f7e7ce-3699-46ba-a23e-42e89862eadaMatt<p>This little book is a good intro to BLE: <a href="https://www.amazon.com/Getting-Started-Bluetooth-Low-Energy/dp/1491949511">www.amazon.com/.../1491949511</a></p> <p>And for Nordic specific material why not start with (a) get a PCA10040 DK and (b) peruse the tutorial pages at <a href="https://devzone.nordicsemi.com/tutorials/">devzone.nordicsemi.com/.../</a></p><div style="clear:both;"></div>