The industry has not shrunk celullar phones more because they cannot shrink our fingers to manipulate more reduction. Screen typing can be %^#$@! if you are over 11.
Seen on the web guys making capacitive/conductive styli instead of buying, for the kick of it, using conductive foam.
How do they make it work ? If a piece of conductive foam performs, why a metal rod does not ? Or a pencil lead in contact with the hand ?
I tried two types of conductive foam borrowed from my ICs matresses. A soft one that is crumbling/dissolving works. A shinier/stiffer one does not.
Or is there something about how many mm area is the surface touched in order to respond ?
Seen on the web guys making capacitive/conductive styli instead of buying, for the kick of it, using conductive foam.
How do they make it work ? If a piece of conductive foam performs, why a metal rod does not ? Or a pencil lead in contact with the hand ?
I tried two types of conductive foam borrowed from my ICs matresses. A soft one that is crumbling/dissolving works. A shinier/stiffer one does not.
Or is there something about how many mm area is the surface touched in order to respond ?