![]() ![]() The capacitive slider designs I've seen all use two or more pads, and the controller computes finger position based on the different reads from the pads. But expect lot of experimenting and theory to study before it will work reliably. I never did anything much close to this but in my (only) experiment with capacitive sensing & water capacitance increased a lot when I touched the water. ![]() You measure capacitance between some points at the sensor and from result at different points you guess location of the finger. I think only viable way would be some capacitive sensing.
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