This is actually my first project. I wondering how I could connect a finger sensor (scanner) to an Arduino that can unlock pages/slide show I have already programmed on to my LCD. For example the screen will say "Welcome" then when I scan my finger and it detects mine it'll say "Hello David" and then I can get access to the following pages created for my user by simply touching the screen. I want to do this for two users. Are there any programs that can help me?