I am currently designing and testing a product to expand a PC parallel port for medium speed data acquisition and control. As currently designed the system can be expanded from as few as 8 up to a max of 128-8 bit I/O ports.
Some applications I can envision range from general building/lighting automation, light industrial automation, sprinkler system control, burglar alarm....virtually any application that does not need critical/extremly fast read/write control, but does require a larger scale than can be provided by current PIC based PLC units on the general market.
Any comments you have would be appreciated. Especially in the areas of market viability and pricing.
Dialtone