Nuub here..
Thinking about building this in my mailbox..
AND if possible set a green light diode to start light when box is opened and stop when its opened again.

That way i would see when i come home if someone has opened the mailbox or not.. Sure push notifications work aswell but it would be a nice touch for the wifey

I've been tinkering with 3d printing for about a year now and never had any experience before.

Tried most softwares out there that are free and seem to allways comeback to fusion 360.

For slicing I like slic3r PE in the free tier, even tho its interface looks dated it has some very nice features and handles material/printing profiles really great.

But if u want an all in one package it's simplify 3d. Even tho you don't get the same control as slic3r and it doesn't handle material profiles as good.

It has a clean interface, great gcode preview and a few killer features like custom supports (yes there are other slickers with this aswell) and multi processing that lets you switch profiles anywhere in the print or model.

Yes it's a big price now days for a piece of software. But if you are going to use it alot it is well worth it's price.

@mfalkvidd

Thanks alot for all the help with My newbie arduino questions. Ill try the wait statement later

You lost me at bluetooth beacon? :)

Me personally is using the app but wifey and kids ain't really as interested as i am ;)

So therefore I would need a indicator of some sorts around the mailbox that is about 30 meters from the house in the road up to the house.

Maybe a solar led light or similar to light up? Or a flag on a servo?

Will start with building the switch and figure out the indicator later.

Yes i do.
This is like going back to school... but fun!