https://devzone.nordicsemi.com/f/nordic-q-a/88753/what-does-it-mean-to-be-connectedHello, What is the difference between 2 devices which are constantly scanning and 2 devices which are connected? Also, how do I code 2 devices to connect to each other? I use VScode with the NRF-connect plugin and SDK 1.8.0. Kind regards AD41en-USTelligent Community 13Tue, 21 Jun 2022 06:19:06 GMThttps://devzone.nordicsemi.com/thread/373345?ContentTypeID=1Tue, 21 Jun 2022 06:19:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8fc31cf4-26e0-40da-b827-22abbbd4b8cbJoakim Jakobsen<p>Hi!</p> <p>Having devices established a connection will allow the devices to exchange various information, like connection parameters; Which enables devices to go to sleep between connection, and will reduce power consumption significantly. <br />You can also exchange security information, encrypting the connection and protect yourself against ie. mitm attacks. </p> <p>If you need an example to start with, I suggest that you take a look at the BLE UART example in the SDK.</p> <p>Br, <br />Joakim</p><div style="clear:both;"></div>