Yes this is another GPS Logger project
Track is recorded on the SD card as a .CVS file which is then converted as a Google Earth .kml file
Just download and double click on the attached sample file (you should be logged to the forum to see the file)
It will directly open in Google Earth and display the track.
This logger design is focused on low power consumption by combining several technologies that can be reused for other, non related, projects:
A stripped down Arduino (plain AtMega 328P, $2.99 shipped) removes Led's and FTDI overheads. Processor works @ 8Mhz, 3V.
The board is directly powered by a single 3.2V lithium iron phosphate battery; no need for a power hungry DC/DC converter.
Finally, the processor is put asleep below 3V to avoid battery deep discharge.
By combining all those, I was able to improve battery life from a couple of hours to 20+ hours
This project is rather modular and educational, it will let you master several techniques
- Arduino on a board (thanks Super Nick
- LiFePO4 battery technology
- battery monitoring w/o voltage regulator (not trivial...)
- Arduino sleeping modes (thanks again Nick)
- GPS NMEA 0183 serial protocol
- SD Card SPI communication
- Python scripting
- KML format
- soldering and packaging in a nice waterproof box
Disclaimer: I invented nothing, just putting stuff together
Should you need additional info's and links on specific points, let me know