Getting a third contact in would give a direction...either 123123 or 321321...but I haven't figured out how to wire that yet, so I've jury rigged it. As long as the total number of "teeth" is even (from pad one AND pad two combined), then in one direction I always hit pad one first, in the other, pad two.
The "total1 = cs_4_2.capacitiveSensor(30);" line. This "adds up" readings from the pin I assume. Is the figure in brackets a period of milliseconds or a number of readings? I assume either way that a higher number would be a slower response?
If you tightly ran a a length of very thin ( ie high resistivity) nichrome wire.... *snip*
The nichrome idea and the softpot require actual pressure I guess? ie it would not be possible to put them in the tube?
You have the triangles...and other strips. What are the other strips for and how are they connected?
But then when I try and get readings in the main program it does this crazy rubbish (right hand side)
.so how in all that's holy is it giving me NEGATIVE values (mostly -1 and -4)?