I wonder if the creator had neighbourhood style mailboxes down the road? If not this seems quite complicated solution for an object that is probably with range even BLE.
I tried building a mail sensor a couple of years ago where the mailbox was a fair distance from where I was living. I was not able to create a solution that didn't either have false positives or false negatives. For an outdoor object jostled by wind and rain it is harder than it seems.
https://hackaday.com/2022/05/30/check-your-mailbox-using-the...
I wonder if the creator had neighbourhood style mailboxes down the road? If not this seems quite complicated solution for an object that is probably with range even BLE.
I tried building a mail sensor a couple of years ago where the mailbox was a fair distance from where I was living. I was not able to create a solution that didn't either have false positives or false negatives. For an outdoor object jostled by wind and rain it is harder than it seems.