Add a Door Switch?

I did some searching but did not find anyone talking about this. Has anyone added a door switch to a fridge that had none? Any ideas for a switch to use?

I was thinking one of these might be good:

It’s rated for up to 500 mA, I think the Arduino can only do 40 mA on the I/O pins?

Any magnetic “reed switch” like the one LBussy suggests should work as it only needs to complete the circuit.

Or you can simply use tape, aluminum foil and exposed wires.

I hope you will take my reply in the manner in which it was intended when I say that is the least high tech solution ever. :stuck_out_tongue:

Hell, I’m sure it works great though.

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