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Author Topic: Detecting "Touch"  (Read 605 times)
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I can't think of a better word to describe what i'm on about that touch.

With a touch sensor, you can use the capacitance to determine if it's been touched or not, but what about human skin?  how would one go about
triggering a circuit from merely blowing on a sensor? I thought about using a microphone to detect the sound of someone blowing, touching is easy
but feeling the pressure on your skin from air flow...

Has anyone ever come across a sensor that actually detects low air pressure movement? would it even be possible?   or we in the realms of startrek here...
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It could be as simple as hot wire. Other way is to install temperature sensor and hot resistor in close proximity
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interesting thoughts, thanks.... 
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There are also "Force Sensing Resistors" that change resistance when bent.

Bob
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Here's a sculpture that responds to blowing...




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There are a couple of apps for the iPad which mimic candles, when the iPad is blown on the candle flickers - using the microphone as you have suggested... and works very well!
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Here's a sculpture that responds to blowing...




That link doesn't seem to work for me, try this: http://technolojie.com/pu-gong-ying-tu-dandelion-painting/
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I sensed air movement (unintentionally) using a tmp35 to measure temperature. It was an annoyance because I didn't want it to be that sensitive, but it did a really nice job of sensing a casual breeze when I walked by it. 
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