For a fun gift that relives memories of places in personal history, Theo Meyer has worked with previous examples and built his own geocaching box. For the uninitiated this is a device that needs to be taken to various locations, and once the journey has completed the box can be opened to reveal a gift or suprise of some sort.
In theory it may sound complex, however with the use of an Arduino, GPS module and a large battery it's quite easy. The sketch checks that required GPS coordinates have been received, and then controls a servo or solenoid to release the latch in the box.
This is a fun project that can be made by beginners and experts alike, so for details including the sketch and hardware schematic - log into the Arduino forum. And for more, we're on facebook, twitter and Google+, so follow us for news and product updates as well.
If you're looking to learn how to use an Arduino with GPS receivers, servos and and much more, you can't go past "Arduino Workshop - A Hands-On Introduction with 65 Projects” by John Boxall.
Arduino Workshop takes the reader from having zero knowledge about the Arduino platform, electronics and programming and leaves them with the know-how and instructions on everything from blinking an LED, to robotics, wireless data, cellular communications, motor control, sensors, Internet connected systems and more. For more information including a sample chapter and table of contents, visit the book page.