Need to acquire parallel data from pc

[soundbynibs]

Hello
i have 16 9v inputs and i need to pass them into a pc somehow. I have been working in for a long time now but to no avail. Thank you

 

[Nigel Goodwin]

The single IC solution would be a PIC, with a little programming, take the 16 inputs to the PIC, and send them via RS232 to the PC.

You might even consider the UBW, which is a ready made USB PIC system which will do what you want - you can buy them from Sparkfun.

 

[ericgibbs]

Hello
i have 16 9v inputs and i need to pass them into a pc somehow. I have been working in for a long time now but to no avail. Thank you

An alternative solution, if you dont need to read all 16 pins at the same instant, is to use a HEF4067 16:1 multiplexer.
Use the parallel port pins 2 thru 5 to address the HEF4067 and either pin 10 or 11 to read the input data.

Dont connect a 9V source directly to the HEF4067 data i/o pins, use a resistive divider 9V down to 5v