https://devzone.nordicsemi.com/f/nordic-q-a/6295/how-to-use-pca10000-dongle-and-a-windows-terminal-app-e-g-puttyI have a system fully operational using the nRF8001 communicating to both IOS and Android devices using nRFUart app from Nordic as well as a custom app using the uart tx and rx pipes. I thought it would be a trivial matter to plug in the PCA10000 dongleen-USTelligent Community 13Fri, 24 Apr 2015 08:54:40 GMThttps://devzone.nordicsemi.com/thread/21977?ContentTypeID=1Fri, 24 Apr 2015 08:54:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:735b0e07-3e32-4fda-a01b-59641e037246Susheel Nuguru<p>Hi Doug, if this answer helped you, can you please accept it by clicking the grey &quot;✓&quot;. If not can you please elaborate your question. If you have fixed it in other ways, can you please let us know how you did it so that others benefit from it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/21976?ContentTypeID=1Thu, 09 Apr 2015 07:42:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6bf891af-592a-47ad-84f6-568d23f28da1Susheel Nuguru<p>Hi Doug,</p> <p>Master Control Panel(MCP) is an application locks the COM port that the dongle has been emualated. It uses that interfaces to send HCI commands to control and send commands to the device. Hence no other app can use that serial COM port as long as MCP is in use.</p><div style="clear:both;"></div>