Hi Liudr I would appreciate some code if you have some for the password. But as for the phi-panel serial lcd backpack. I would love one but I have no funds at the moment because I am on what you call welfare since my injury. I will make do with what I have in the way of hardware. my alarm when it is finally done will not have a display just some indicator led's. I will have to do something about my keypad though it is just 12 buttons soldered onto a piece of protoboard. But that may just confuse a Burglar.
Regards
Jeremy