Xfinity uei keypad

So I got one of these keypads for free and I’d like to use it either as a security keypad with sthm or as a smart button. I’ve almost given up using it for security as I can’t make anything I’ve found work. But if there’s a way to use it as a smart button that would be cool. Any ideas? I’m aware of rboys solutions but I don’t want to spend $40 to make a free keypad work.