Yesterday, I got the main controller attached. Its a Parallax Propeller with 8 optically isolated outputs and 10 optically isolated inputs. For communication, it has a FT232R USB UART and access 8 unprotected I/O pins. Program Storage is accomplished via a 32kb EEPROM. I will probably be adding an SD card socket for up to 32mb of additional data storage. Propeller Homepage Link
