Parts and Tools

To get started with your reverse geocache build, here are the required parts:
An Arduino UNO - The brains of the reverse geocache.
Adafruit Ultimate GPS Module - This little guy will tell us where we are, and where we need to go.
A Standard 16x2 LCD - This will be used to communicate with the person using the reverse geocache box.  You can have it help people navigate to the destination, give them a clue, or ask them to marry you.  :)
A Micro Servo - This little servo will be used to lock and unlock the box with the Arduino.
Prototyping Board - Assemble and solder your electronics to this proto-board so it doesn't fall apart in the field.
A Power Switch - Kenton prefers the Adafruit Waterproof Metal On/Off Switch (with blue LED ring).
Hook-Up Wire - For connecting all of the electronics together.
A Battery - Power the whole thing with this 9V battery holder.
A Box - Something to enclose the project in.  Kenton made his out of cherry, but you can use just about anything.  Just don't use a metal box, as the metal will block the GPS signals.
Also, you will need a few tools and supplies:
A Soldering Iron - Use this to solder the electronics to the proto-board.  If you have never soldered before, check out our soldering tutorial here.
Solder Wick - To fix your soldering mistakes the easy way.
This guide was first published on Dec 06, 2012. It was last updated on Dec 06, 2012. This page (Parts and Tools) was last updated on Nov 11, 2019.