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Author Topic: Reading data from unknown GPS device  (Read 1618 times)
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Denmark
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Hello, i found an old USB GPS device i bought a long time ago, and i wanted to connect it to my arduino uno.

pics:
https://dl.dropbox.com/u/4096913/WP_000097.jpg
https://dl.dropbox.com/u/4096913/WP_000098.jpg
https://dl.dropbox.com/u/4096913/WP_000099.jpg

I tried following the guide for SparkFuns EM-406A, with TinyGPS lib http://wiring.org.co/learning/libraries/basicpositioning.html
It seemed to have the same pin configuration, but no lucky so far smiley-sad

I was hoping that someone out there had tried something similar.

Thanks in advance  smiley-grin
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You can't hook the Arduino to a USB device easily.  If you are lucky, the unpopulated connector location near the  cable connector is a serial I/O port that the Arduino can use.  If you have an oscilloscope handy it should not be hard to figure out.
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Denmark
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Sadly i dont have an oscilloscope (yet!)

Just to make sure it is "J3" we are talking about, right?

Seeing as i dont have an oscilloscope, should i just try connecting to J3.
I dont have the drivers for it anyway, so if i can get it to work, i might as well toss it out (no harm in trying, right  smiley-wink ).
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Just to make sure it is "J3" we are talking about, right?

Seeing as i dont have an oscilloscope, should i just try connecting to J3.

Yes, J3.

If you have a multimeter you should check the voltages on those pins.  If it's an RS232 connector they'd may have high voltages or negative voltages that can harm the Arduino.  If they all read 0 or +5 it should be safe enough to connect.
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