1. Add two 8-bit PIOs to the Nios II hardware design that connect to the 5 volt I/O pins on the board’s header connector. Setup one port for input and one port for output. Connect the PIO port’s I/O pins to eight input pins and eight output pins on the header. This is a handy way to interface external devices and sensors like those used in the FPGA robot projects in Chapter 13 to the FPGA board’s Nios II processor.