Stateful questbox

A gps powered box that makes you visit a few spots before opening

Description

Similar to questbox but stores small state info EPROM so you have to visit two or three different places before it opens.

Design

Needed hardware:

• Arduino uno
• Reverse Geocache Version 2
• GlobalSat EM-406A GPS module
• 2×8 blue LCD with connector header and cable
• Hitec HS-55 servo motor
• 4-40 push rod and clevis for latch (some versions provide a Z-bend rod instead)
• 2 AA battery holder
• Metallic push button with embedded blue LED and 4-pin cable
• Pololu low voltage switch
• Pololu 5V boost regulator
• JST connector for EM-406A GPS module
• Straight and right-angle header pins for the display, servo, and pushbutton connectors
• 2 resistors for current limiting and display contrast adjustment
• 2 small capacitors for power smoothing
• larger capacitor for display contrast circuit

Total hardware cost: 137$ + shipping

Aditional materials:

• A nice box
• Epoxy glue, wood to cover pieces, tools

You can find assembling instructions in sundial page (you can buy most materials from them)

I will upload stateful code and post a link here, unfortunately I wont get all need hardware on time, so this is just an idea :)

Inspiration:

Conclusion

Learned how to integrate many components and libraries all toghether, I'll have to travel a bit to test it :)