OK here is some background on what I am doing.
I am a hobbiest so pardon my ignorance but I am learning.
I am and have been working with Arduino Micro controllers (Mega) and use them to do a number of things. I have been using HC05 or HC06 TTL level serial to Blue Tooth (BT) converters with the Micro controllers. Communication from controller to controller is easy. Lately, I have been generating code (Java) to allow me to communicate with the Micro controllers using either my Windows or Linux based computers or my tablet. If I use my (Dell) laptop computer or my tablet with a built in BT system, Windows or Android assign a Com Channel (Ie. Com4) to the BT system. I can then use hyperterminal or XCTU (Modem Progams) or my Java programs to communicate directly to the Mico Controllers or from computer to computer.
I was hoping tho be able to do this with a USB to BT converter. Similar to using a USB to RS 232 converter.
I can do this by using a USB to RS232 converter and then a RS232 to TTL converter and finally a TTL to BT adapter but that is a bit of a pain.
So far I have bought to different USB to BT adapters and both of them behave or appear to behave the same. That is to say the BT adapters want to connect to some type of sound system, keyboard, mouse, ect. They will also allow me to connect to a computer to allow me to transfer files, but I do not get a com port channel.
One of the USB to BT adapters also provides a WiFi function but I have no idea of how to use that (Zero Documentation).
I hope my little dissertation here will help clear things up.