Arduino Controlled Sip-and-Puff

Posted on Feb 7, 2014

Sip-and-Puff (SNP) controllers are nothing new - you`ve probably seen one in action yourself. SNPs are often seen on electric wheelchairs and allow individuals who can`t use their hands to control their wheelchairs (or whatever else) by either `sipping` (inhaling) or `puffing` (exhaling) into a straw. Depending on how hard the individual inhales o

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r exhales, it makes the wheelchair respond differently. It`s a pretty amazing technology that has changed the lives of millions of people for the better. If you are counting on a sip-and-puff switch for something like controlling a wheelchair, it is probably in your best interest to have a professionally built one that can be perfectly calibrated. But what if you want to build an SNP controller for something else SNP controllers can run upwards of $400 and if you want to, say, build an SNP controlled joystick for a video game or some other use, buying an actual SNP might be cost prohibitive. That is where this next project comes in. Check out the Arduino Controlled Sip-and-Puff. Using an Arduino, some pressure/vacuum switches, tubing, and some clever programming, this SparkFun customer made a DIY SNP controller that can be integrated into thousands of projects. This is an amazing project with some very useful real-world applications. It is always great to see SparkFun parts used in a way that can truly benefit society - it warms our nerdy little hearts.

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