https://devzone.nordicsemi.com/f/nordic-q-a/2014/s120---possibilityHi, I am working on my new project. My goal is a sensor network. I have to create four service, one or two basic service like htm and battery service and other with contains custom service. For example battery service 1 char. -&gt; battery level en-USTelligent Community 13Fri, 28 Mar 2014 09:35:22 GMThttps://devzone.nordicsemi.com/thread/8627?ContentTypeID=1Fri, 28 Mar 2014 09:35:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:917648ea-0775-4f8c-b7b1-1a9fca9a2858Ole Morten<p>There shouldn&#39;t be any problem with such service setup, neither with the S120 nor with the S110. Beware that the GATT Server in S120 0.8.0 is limited to read-only, but I don&#39;t think this should be a problem for you, as I assume you are planning to put all this data in your sensors, in which case the S120 will be the GATT Client. Take a look at <a href="https://devzone.nordicsemi.com/index.php/what-is-a-client-and-server-in-ble">this question for an explanation of roles</a>.</p> <p>The S120 is capable of keeping a connection with up to 8 Peripheral devices simultaneously.</p> <p>Finally, there is an alpha of version 1.0.0 available, so you should make sure to use this instead of 0.8.0!</p> <p>Edit: The alpha of 1.0.0 also includes a writable GATT Server, as opposed to 0.8.0.</p><div style="clear:both;"></div>