Pages from a paper notebook have been turned into a human-machine interface by engineers at Purdue University. Packaging, notebooks, or any other paper or cardboard can be turned into a keyboard or keypad. Here’s more from SlashGear:
Researcher Ramses Martinez says that the process is the first time self-powered paper-based electronic devices have been demonstrated. The team developed a process to render paper repellent to water, oil, and dust by coating it with highly fluorinated molecules. The resulting omniphobic coating allows printing multiple layers of circuits onto paper without smearing the ink from one layer to the next.
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