Hi. For my robot i need some contact switches working with an arduino. The switches are copper and alluminuim, and work pretty well, with barely any resistance at all. on the parts that shouldn't conduct, i use ductape. The problem is, sometimes the digitalred of my arduino returns 1 instead of 0 even if the contacts are seperated by ductape. Can someone help me solve this? these contacts are a vital part of my robot...
Thank you