AnaWe just found out that a product similar to our idea already exists and can be bought from "http://www.tandemmaster.org/".
We will discuss this in a later post as it's time to snooze now.
-Ana
Found a similar product...
A project log for Puff-Suck interface for fast text input
A tube connected to a bipolar pressure switch drives an Arduino which translates puffing and sucking into Morse code and then into text.
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