Hi, I’m using 8 inputs of a UNO set to mode INPUT_PULLUP. I need to read contacts that are three meters away. I’d like to use some old telephone cord with four conductors each. I capacitive signal parallel conductorsas planning on using each conductor as an input and run one common ground for all eight inputs. Because the conductors are close and run parallel I’m nervous that current in a closed path will induce current in an open path and I’ll get an erroneous signal. I don’t know what current to expect from the arduino and whether it’s strong enough to create that problem. Opinions anyone?