Pinboard (jm)
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recent bookmarks from jm
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The Reverse Geocache Puzzle Box
2010-09-16T10:41:23+00:00
http://arduiniana.org/projects/the-reverse-geo-cache-puzzle/
jm
geocaching cool electronics geolocation gps hardware puzzles arduino
https://pinboard.in/u:jm/b:f65363744b51/