wireless Arduino Mailbox Monitor - emails you when you get mail

I made a mailbox monitor out of Arduino, more for fun than actual usage. But it could easily be used as a door/window monitor. It's battery powered and wireless. It integrates with a Raspberry Pi running OpenHAB to send an email when the mailbox door is opened, and also makes the Raspberry Pi play the old AOL "You've Got Mail" sound.

nice, I did one with a digital light sensor with an interrupt... sleeping all day long.

you should share your code for the forum!