https://devzone.nordicsemi.com/f/nordic-q-a/22170/choosing-soft-deviceHi, I have a question about choosing &quot;correct&quot; soft device. I need only peripheral connection, but I&#39;m bit in doubt for choosing SD110, because compatible sdk ver 10.0.0 ( compatibility matrix ) is already two years old. developer.nordicsemi.com/.en-USTelligent Community 13Fri, 19 May 2017 07:26:58 GMThttps://devzone.nordicsemi.com/thread/87150?ContentTypeID=1Fri, 19 May 2017 07:26:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9de37e90-ce87-4140-8b8a-e8f9387c36a5Matej<p>Thank you guys for info.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/87149?ContentTypeID=1Fri, 19 May 2017 07:24:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4db9d747-20e8-4a93-b378-cf4f05b53ba6bjorn-spockeli<p>@matej: I agree with Wojtek, stay with the S130 and the latest SDK as long as you&#39;re not running out of flash and/or RAM.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/87148?ContentTypeID=1Fri, 19 May 2017 07:23:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ac0fd33b-74bc-4f89-a1c2-b66d948b503aMatej<p>maybe would be great to also have noted such things... so can we say that sd110 is obsolete?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/87147?ContentTypeID=1Thu, 18 May 2017 13:31:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:753c041f-c20f-48f0-b7ed-ee8da2a1a85cWojtek<p>I would just go with newest S130 available. However, S130 eats a bit more ROM memory than S110, so if there is a situation where you are out of ROM, you may think of using old S110... However i would not recommend that, as older SDK is quite incompatible with new one.</p><div style="clear:both;"></div>