- Stepping motor control unit (U-1009E) - Speech Analysis & Synthesis Unit (U-1009G) - DC motor control unit (U-1009C) - Temperature control unit (U-1009F) - D/A converter unit (U-1009B) - A/D converter unit (U-1009A) - Bread board & power unit (U-1009D) All these boards have parallel port interface, the problem is that the software is on a floppy disk. (Still under test)