hehe ya, i should put it up on my github, you are getting me interested again. For authentication ya, button sequence, or another thing i was thinking might be

hehe ya, i should put it up on my github, you are getting me interested again. For authentication ya, button sequence, or another thing i was thinking might be cool would be NFC. I have a little NFC chip, could make a new version. That would be cool then you could activate it with your phone using an NFC app.