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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>16  concurrent device linking , the central to use rf52 and peripheral to use rf51 ,  Is it feasible?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/43655/16-concurrent-device-linking-the-central-to-use-rf52-and-peripheral-to-use-rf51-is-it-feasible</link><description>I have a new project that needs to be evaluated, but I still have some uncertainties, so I would like to ask you specifically: 
 We are going to develop a one-to-many star structure network, where one master device is connected to up to 16 slave devices</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 13 Feb 2019 15:39:04 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/43655/16-concurrent-device-linking-the-central-to-use-rf52-and-peripheral-to-use-rf51-is-it-feasible" /><item><title>RE: 16  concurrent device linking , the central to use rf52 and peripheral to use rf51 ,  Is it feasible?</title><link>https://devzone.nordicsemi.com/thread/170949?ContentTypeID=1</link><pubDate>Wed, 13 Feb 2019 15:39:04 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:85f3e58f-0137-43b3-9df0-432be3621c73</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;The nRF52832 with the latest SoftDevice versions supports up to 20 concurrent connections, so the star network is fully feasible. There are some throughput benefits to use nRF52 for the slaves also, since nRF52 supports 2M PHY(Bluetooth 5 high speed) and higher ATT MTU. So, if you have a simple slave application, and cost is a factor, you could consider switching out the&amp;nbsp;nRF51822&amp;nbsp;with a nRF52810(192 kB flash /24 kB RAM) instead. But the master/central will need to be a nRF52832 or nRF52840.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;The&amp;nbsp;&lt;span&gt;throughput&amp;nbsp;&lt;/span&gt;requirement at&amp;nbsp;&lt;span&gt;500Byte/s per slave should also be feasible. We have some&amp;nbsp;throughput numbers available here(nRF52 &lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.sds/dita/softdevices/s130/ble_data_throughput/ble_data_throughput.html?cp=2_3_1_0_16"&gt;link&lt;/a&gt;, nRF51 &lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s130.sds/dita/softdevices/s130/ble_data_throughput/ble_data_throughput.html?cp=3_7_2_0_16"&gt;link&lt;/a&gt;).&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>