All posts in the 'GPS projects' Category
Posted on 11 May 2008
The circuit it’self is pretty simple, take in the data on one pin, parse it, format it and then display it to a 4×20 LCD module (Hitachi Chipset). That is the basic idea, but you might add in somthing like a mechanical encoder that would allow for changing options or changing settings in the display unit. This might be as simple as a SPDT (Singe Pole Double Throw) switch if the options are as simple as two settings.[more]
Posted on 24 Apr 2008
Here is the simplest build-it-yourself GPS tracker yet. No expensive GSM module required - I am using the $20 GoPhone from WalMart or Target. Uses a 14-pin AVR microcontroller, a voltage regulator, a transistor, a GPS module 2 inches across, and that’s it. My open source firmware can track objects automatically or manually. Has a programmable command interpreter that can sense or control pretty much anything by text messaging.The current supported hardware platform is: Tyco Electronics A1035D GPS module ,Motorola C168i AT&T , GoPhone prepaid mobile phone ,Atmel ATTINY84-20PU AVR microcontroller.[more]
Posted on 03 Apr 2008
Alex writes:My goal is to build a kind of a mobile tracker. There are many different use cases you can think of but one of the obvious is a device, that is able to report where it is. This device can be put in your car and it could trigger an alarm, if the car got stolen. Actually it could tell you where it is.There are already mobile tracking devices out there, but they seemed to be too expensive and too closed for my needs. Another option is one of these new Nokia N95 which have built-in GPS. They are really nice, but about 600€, which is not a bargain. So I decided to do my own.[more]
Posted on 10 Mar 2008
This project focused on creating a simple serial data logger for the Delorme Tripmate (also known as the GPSTripmate). The Tripmate is an older GPS receiver that can be purchased on eBay for <$20.The plan was to create a GPS data logger that would record the position of the unit and allow to read back the latitude and longitude after acquiring the data.[more]
Posted on 05 Feb 2008
handheld GPS unit, that comes with a serial cable allowing you to interface it with a PC. Using a terminal program like Windows’ Hyperterminal or DOS’ Lynx, one can directly access the GPS to view the incoming geospatial message received from satellites orbiting Earth. Among other parameters, the message describes the unit’s position (longitude and latitude) and speed (if carried or transported in a vehicle). Using a terminal program to read the geospatial message isn’t very practical. The messages scroll too quickly to read well and they contain a lot of extraneous information.[more]
