Not to hijack this..but it is along the same lines....
   
  Whats the easier way to do a USB connection from a PIC
   
  FTDI or one of the new 18F series with the built in USB?  Its more short on time than $$ so not looking at the cheapest....ok I am...but the simplest

Russell McMahon <apptech@paradise.net.nz> wrote:
  I'm looking for the cheapest possible way to implement a PC to "RS232" 
serial link.
End product would ideally appear to the PC as a serial port with 
standard drivers, but needing drivers is permissible if necessary.

Data speed is subservient to lowest cost.

Output to drive a dumb serial port.

Best candidate so far appears to be something like the AVR309 
implementation using an ATtiny2313.
Processor, crystal, regulator, 3Cs, 1R, connector.

http://atmel.com/dyn/resources/prod_documents/doc2556.pdf

Any advance on that or comments?


Extra credit:

Implement a USB to Parallel port converter.

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