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Marriage proposal using custom reverse geocache box

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Marriage proposal using custom reverse geocache box

Arduino TeamOctober 14th, 2019

Software engineer Josh Robertson decided to come up with his own take on a marriage proposal, building a reverse geocache device for the job that uses not one, but two Arduino Uno boards

The unit, which is made out of a wine box, is unlocked by three servos that actuate rods to release a trio of clasps. His not-yet-fiancé had to first input the correct sequence on a keypad, then turn potentiometers to the right position, and finally traipse to the accurate location—sensed via GPS—for it to open up.

As the project’s I/O requirements went beyond a single Uno, Robertson linked a pair together using the I2C protocol, allowing the master to read GPS coordinates and control a small LCD screen, while the second Arduino takes care of user input and servo actuation. 

The result was a “yes” to the proposal, and while we can’t guarantee the same outcome if you build one yourself, more info on the contraption is available here. Congrats, Josh!

Website: LINK

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Written by Quad Oner

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