https://devzone.nordicsemi.com/f/nordic-q-a/19368/nrf51-s130-bt-role-usageIn s130 Soft device v2.0 document, it says it can have role with up to 8 Role concurrent with Central, Pheripheral, Advertiser, Observer. I&#39;m not sure i&#39;ve understand all of the document correctly, but i&#39;ve understanded Concurrent BT Role like thisen-USTelligent Community 13Fri, 24 Mar 2017 10:05:19 GMThttps://devzone.nordicsemi.com/thread/75131?ContentTypeID=1Fri, 24 Mar 2017 10:05:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1046c0d7-ec20-489d-8b4e-3c7fc6909905Petter Myhre<p>Sorry for the very delayed reply. Somehow you question slipped through the cracks.</p> <p>You understanding is correct, with S132 v2.0.0 and v3.0.0 you could have 1-8 central connections, 1 peripheral connection, but max 8 in total.</p> <p>S132 v4.0.2 supports up to 20 concurrent connections through. See S132 SoftDevice specification v4 <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.sds/dita/softdevices/s130/s130sds.html?cp=2_3_0_0">here</a> for more info.</p> <p>I don&#39;t understand exactly what you mean when you say that the S130 is just a broadcaster. You can establish a connection as both a peripheral and/or central and send and receive data in both roles.</p><div style="clear:both;"></div>