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Old Oct 05, 2012, 04:48 PM
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Joined Mar 2005
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There are most likely clamping 3.3V zener diodes at the input on the gps to prevent the voltage to be to high but there isn’t anything to prevent the current to be to high but some resistors in series would prevent this. So that was how i did it on my board i put a 1k resistor in series between the Tx and Rx but i haven’t tested it yet.

By a coincident a few days ago so did i found the schematic for flytrons OSD open board and they had done exactly the same so im sure it would work just fine to do so and i haven’t herd of any that had a blown GPS or so using their board.


mklinker What i have understood so was the code pretty much written to and for the PA6B GPS and this GPS could be found almost everywhere around the world and you don’t really have to change anything in the code for this to work right away.
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Last edited by Henry.; Oct 05, 2012 at 05:03 PM.
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