Need to acquire parallel data from pc

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

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.

soundbynibs said:

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

Click to expand...

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