https://devzone.nordicsemi.com/f/nordic-q-a/20261/conectionless-broadcaster-observer-over-128k-16k-deviceDear All, I&#39;m developing a connectionless beacon, it can be an observer or broadcaster device depending of time slot. But softdevice stack does not leave available space to do this, I will appreciatte any suggestions? Thanks in advance, best regardsen-USTelligent Community 13Wed, 08 Mar 2017 12:58:49 GMThttps://devzone.nordicsemi.com/thread/78930?ContentTypeID=1Wed, 08 Mar 2017 12:58:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2eea386c-c192-461e-b582-886260a321acHung Bui<p>Hi Indusys,</p> <p>Which softdevice and which version are you testing ? For your purpose as you want scanning you may need S130. S130 v2.0 only requires 108kB of flash and minimum 4.9kB of RAM.</p> <p>Would your application fit into 20kB of flash ?</p> <p>If you don&#39;t use any other library, such as peermanager or device manager, I think it should fit in the 20kB size to do broadcasting and scanning.</p> <p>Another option is to do broadcast and scanning without the softdevice. But we will get to that only if we can&#39;t fit your application with the S130v2.0</p><div style="clear:both;"></div>