CHAPTER 11Signaling Flags
IF, DURING THE COURSE of a leisurely bath, the Evil Genius requires further refreshment or other essentials, he can use any Internet device that is handy—perhaps his beloved ebook reader, for instance—to summon a minion from the kitchen quarters by raising a small servo-driven flag (Figure 11-1).
In fact, the Evil Genius has a choice of two flags, to which different instructions can be attached. He may, for instance, choose to have one flag for requesting more wine and another for hot towels.
The flags are controlled from the web page shown in Figure 11-2.