Project PDA

To establish an ordinary serial over USB(Virtual com for USB)communication between the windows XP based PC and windows mobile PDA you need a USB to serial adapter to connect to your PDA from your PC. Then a serial to PDA specific serial cable as long as your PDA supports standard serial.

Virtually all PDAs today have an RS-232 serial port. Supporting this interface is important since there are hundreds of millions of electronic devices—computers, GPS receivers, barcode scanners, modems, digital cameras, environmental sensors, etc.—that also have RS-232 serial ports (and not USB ports). If you wish to develop applications (Java or otherwise) that communicate with the serial port, you will need to know how the port is controlled. In many designs the same physical port also provides USB-slave-mode connectivity.

With Serial Splitter Mobile you can connect one application to the other, split real ports into virtual ones. As a result, applications can exchange data. Such solutions can be useful for GPS simulation systems.

Bluetooth Wireless Serial Port adapter/Wireless serial cable replacement. Used to connect serial printers, serial scanners, or any other device to a computer or remote up to 300+ feet (100 meters) away. The Bluetooth Wireless RS232 adapter does not require a computer to function. The Bluetooth Serial Port Adapter can be used with PDAs,  computers, laptops, and smartphones that support the Bluetooth Serial Port Profile and Bluetooth Generic Access Profile. Ideal for use in applications where a PDA or laptop would communicate with another device (SBC, RTU, sensor, robot, radio, PBX) wirelessly.

Aslo attach chart:

http://www.qstarz.com.au/service/faq.html