so if you add enough caps can you emulate what an inductor is doing, ie. Lead the current so far that it appears to be lagging? I assume this doesn't work, why not?

Hey, I've build a small three wheel robot with an Arduino Mega to drive the thing. I'm looking to keep this bot mobile as much as I can without needing to interact with it for cha …

I was wondering if you can use an inductive proximity sensor to detect aluminum or if a capacitive sensor must be used? I wasn't sure if inductive sensors were reserved for ferrous …