Arduino Wireless Mailbox Detector Device
If you are anything like me, you look forward to the mailbox arriving like a kid on Christmas Eve. Since the time my mailbox arrives is not always consistent I would check my mail multiple times a day. To solve this problem, I created a wireless sensor that tells you whether there is mail in the com...
By: 1Serg
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By: 1Serg
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[original story: Instructables]