I want to create a variation on a respiratory effort belt (to be used for non-medical purposes), similar to this one:
The device I wish to emulate (and create a variation on) goes around your waste and responds to the pressure (on the piezo) resulting from inhalation and exhalation.
I am thinking about ordering either a Flexiforce Pressure Sensor or a piezo vibration sensor from "Sparkfun" and an arduino (I am thinking Arduino Uno).
The next step is to have the arduino power a small motor when the pressure on the piezo (e.g. the amount of inhalation as measured by the piezo) has not exceeded a certain amount for a specified period.
Any suggestions are welcome.