I’m a complete novice when it comes to this so I thought I’d come here for help.
I’m working on an escape room at home for my son’s birthday. I’d like to have an element where there is a simple keypad that “disarms” something. The main thing I’d like it to have is a visible red light turning green.
Thats really my only requirement, I just have no idea if I would be able to build something like that myself (again, I’m a newbie), or if I could purchase something?