I've been using arduino for a a while now and now have a question that would be silly to consider all by myself, so I thought it a good opener for me into the forum.
In the context of a bigger project, I'd like to have some kind of small pad on the ends of my fingers, each of which I could use as an on/off switch, when contacted by my thumb (i.e with another pad on my thumb).
At first I was thinking there must be some kind of pressure sensitive piezo pad and indeed http://www.allelectronics.com/make-a-store/item/PE-56/21MM-PIEZO-ELEMENT/1.html]there are( [url]http://www.allelectronics.com/make-a-store/item/PE-56/21MM-PIEZO-ELEMENT/1.html
, though I know nothing of the specs of such thing or there suitability for the application I am thinking about.
The other option would be even simplier: a conducting plate, isolated from my finger tip with something. Instead of a plate I could just wrap solder into a flat disk (glued from below) and simply use the completion of the circuit to set off the switch.
As for the input to Arduino, could I just use a digital I/O pin? (I don't have any experience yet with those).
Anyone can point me in an the direction of an intelligent solution, doesn't have to be elegant, just robust. I'm going to be using this alot.
edit: oo! look at this conductive paint: http://www.bareconductive.com/tutorials
. I could buy gloves and paint the tips!