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Lassen signals ?

Tips and questions relating to the GPS modules from SFE

Lassen signals ?

By ryan.reeve
-  Tue Feb 21, 2006 4:50 am #10151
hi
i want to know what type of signal Lassen iQ produces, i mean either it is inverted or not.do i need an inverter to use it to communicate with PC RS-232.
thanks...

Inverted GPS signal

By Rob
-  Tue Feb 21, 2006 8:39 pm #10180
I'm not exactly sure about that model, but quite a number of the other GPS's that I have used (ET-202, PG-31) do give an inverted output. You should be able to easily convert this using a 74LS05 or 74LS04 hex inverter IC.
This will simply invert the signal and allow you to easily interface the GPS to a PC
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