Can we use the sawstop concept for metallic doors as well for home?

Using Arduino Sensors
#1

Is it possible to apply the Sawstop concept where the system induces small current and monitors changes when human finger is inserted? If not what are the nest ways [for metallic doors that closes automatically like elevator]

#2

Do you mean something like capacitive sensing?

Or touch switiches?

#3

I think Sawstop uses capacitive sensing.

It's not the sensing that's the problem, it's what you're going to do with it - and then making it highly reliable!

#4

Have a look at this.

#5