https://devzone.nordicsemi.com/f/nordic-q-a/4352/does-the-master-control-panel-support-pca10024-development-boardHi I try to run master control panel on PCA10024 development boad. On master control panel, I set File-&gt;Options-&gt;Serial port: &quot;Show all serial ports&quot;. Then master control panel could connect to mbed Serial port(COMx). But Log printf: Noresponse from masteren-USTelligent Community 13Thu, 06 Nov 2014 14:02:32 GMThttps://devzone.nordicsemi.com/thread/15486?ContentTypeID=1Thu, 06 Nov 2014 14:02:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b01fcff-87c2-410c-8035-b03926f7fc70Petter Myhre<p>Thank you for answering your own question.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/15485?ContentTypeID=1Thu, 06 Nov 2014 10:05:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bbcd488f-7352-4df9-a2d5-885555021c9bjixing.zou<p>P0_30 need connect to GND</p><div style="clear:both;"></div>