For item 1.
Is the Bluetooth Dongle BCM20702 based? Many of these dongles are available on the market and are referenced throughout the forum.
Did you install the latest Broadcom BTW drivers for Windows? These drivers are not available here on the community, but are available on the Broadcom Corp website (Google "Broadcom BTW").
Are there other Bluetooth radios installed on your machine? Did you disable when installing the drivers and using the app?
Which version of Windows? I believe the BTW drivers work with Windows 7?
I do not have an answer for 2 and 3.
I will ask someone on the Apps team to respond to see if they know how to get sensor data passed through the USB via a COM port to a terminal emulator on the PC.
Yes my Bluetooth dongle is BCM20702 based I bought from amazon as described on forum. Yes I have installed the latest Broadcom BTW. I have only this Bluetooth dongle no other Bluetooth radios. Yes I am using Windows 7. When I installed driver for dongle it installed successfully but when I tried to pair this dongle with tag3 board it gives driver error 'driver not found'. Hello_sensor app is download on tag3 board, one thing is that tag3 board gives beep when I tried to pair it with dongle and when I tried to communicate with the use of helloclient.exe it reads and write I don't know how because I see on my PC driver was not installed successfully.
I checked with the developers and it seems that the dongle will pair with hello_sensor or any other WICED Smart app, regardless of the error.
So essentially, this is not a problem.
Windows is just complaining that it canot find a driver for the hello_sensor service, but it should still work.
The WICED Sense kit as designed does not allow using the HCI mode to communicate to a HyperTerminal.
Modifications would need to be made to the ECI pins of the Silicon Labs CP2105.
Hope that answers your question on the WICED Sense Kit.
The TAG3 Documentation is located here: Programming the TAG2/TAG3 Board using command line tools
Let us know if this answers your questions.