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.

AnaAna 08/08/2018 at 03:200 Comments

We just found out that a product similar to our idea already exists and can be bought from "".

We will discuss this in a later post as it's time to snooze now.