Hi guys. I need help! :confused: I have to realize in the simplest possible way,a touch system. I have to create needs to be flexible, simple, and not expensive
in practice I have to build a strip able to understand where I'm touching to me it just measures the x-axis.
I do not think such a thing exists in the market. (for the length of the object to be create and for the shapes)
for now my idea was:
1) put two parallel conducting strips (they do not touch each other) 2) connect to each strip a pin of Arduino 3) when the finger is pressed on both strips it closes the circuit 4) calculate the impedance of the circuit and calculate X-Axis
I have tried with A0(AnalogRead) + 13(DigitalWrite HIGH) but the problem is that: the finger has a high resistance and makes difficult the trick.
I read that Arduino might already have some library can do to my case: Capacitive Sensing Library
or better to use something like this? TLC555
I hope someone has some advice for me :'(