digital analog serial parallel.

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Last Monday I checked out O’Sullivan and Igoe’s Physical Computing from the library and started reading it earlier today. It’s putting my scattered mind into place. Now I know that toy 1 has digital I/O (input/output) and serial events, toy 2 has digital I/O and parallel events, and toy 3 has analog I/O and serial events.

Projects with digital I/O and serial events, like toy 1, are “easy.” Projects with digital I/O and parallel events like toy 2 are “time consuming, but not too hard.” Projects with analog I/O and serial events, in my case toy 3, are a “bit more difficult”. “The most challenging” projects, according to the book, are ones that have analog I/O and parallel events.

I want to eventually get to projects that have analog I/O and parallel events. That would be a perfect exercise. But first things first.