This week is time for GPS hacks, whether you are trying to make a security project to track stolen goods or help your pet to exercise you will find some very interesting stuff here.
Here's a good example of how to make your own customized geocaching application. Folkert wanted a cost-effective GPS device so he decided to make one himself and gave it a personal steam punk look.
He bought a GPS module and an Arduino nano to control it. He's using as well some switches, a beeper, a LiPo charger, a couple of analog meters and place everything in an antique wooden box.
After a lot of programming he managed to reuse the meters for indicating direction (the one in the left) and distance (the one in the right). A rotary encoder allows to show the current longitude and latitude and to set a new target, an the beeper increases frequency when approaching the target.
Read about this project and see some more pictures on Folkert's website.
Posted on Hackaday.
GPS Tracked Bike Lock
This is a very common application for GPS modules: tracking stolen goods, in this case a bicycle. Stbennett could reuse some old parts for this project and built everything around an Arduino Uno.
The tracker is composed by a GSM shield (with SIM card) and a GPS module mounted on a prototyping board. He included a LiPo battery to power the device and make it autonomous.
The retractable lock has been modified to be an electrical part of the circuit, this way whenever the lock is disengaged or cut the Arduino turns on and the tracker starts working. When this happens, after a short delay, it will send a text message that reads "Your bike has been stolen" and when the GPS module gets signal you should start receiving GPS location coordinates. So paste that data into Google maps and see where your bike is.
GPS Dog Collar
Becky Stern at Adafruit was worried her dog wasn't exercising as much as she should so she built a little GPS collar that tracks your dog and calculates the total distance.
She used a Atmega32u4 Breakout Board and a GPS module to do the tracking, and a OLED graphic display. The code detects when you are moving and adds the distance to the running total.
Besides, the OLED displays the walked distance in miles (easily convertible to km) and a little bar with the progress towards a set goal, so you can quickly check if you keep up the daily exercise.
Posted on Adafruit.
Tracking project by CH: Geocaching Santa.