vfd

enum {
	Fnt5x7 = 0x1d,		/* set 5x7 font */
	Cursor = 0x10,		/* set cursor, followed by 2 bytes */
};

when tuning I could define a scrolling window over the whole screen
and load up to 256 stations and scroll through them.

when locked to a station I could define a scrolling window for
the show/title/artist lines

screen saver with auto dim over 10 secs or so - just perceptable.


Buttons

can I get them without engraving?

failing that I can file them and get them blasted and re-engraved.

currently I have 98 stations... plenty for now.
