Re: parallel interface for model RailRoad

[Rubywand <rubywand@swbell.net>]

Phil Zerr writes ...
> 
> I have an apple IIe .  My parallel cards are wizard and skyman 2000.
> Is there a way in basic using peeks and pokes to send 8 bit data words
> to an interface of my own design to monitor and control a model train
> set?

     Yes. The cards you mention are not familiar; but, probably, you can
send 8-bit outputs by POKEing at an I/O address and read RR settings by
PEEKing an I/O address. Depending upon the IC's used (e.g. 6520, 6522,
6530, 8-bit latch IC's, etc.) you may need to send one or two setup
codes.

     The interface connected to the parallel I/O card could use power
transistors to do the switching of voltages to apply power to an engine,
etc..


 
Rubywand