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Tips and questions relating to the GPS modules from SFE
By BudgetEngineer
#126115
I want to prototype a data logging system for a long-term project. Specifically I need to log GPS coordinates and other sensor info.

I have the Lassen IQ GPS reciever and the OpenLog serial data logger is on its way. Could I directly connect the NMEA output of the Lassen IQ to the input of the OpenLog?

Just clarifying before circuits start frying :D
By slagment
#126121
Looks good.

page 24 says 3.3V TTL for GPS
http://www.sparkfun.com/datasheets/GPS/ ... Manual.pdf

3.3V for the data logger.
Input voltage on RXI pin must not exceed 6V. Output voltage on TXO pin will not be greater than 3.3V.
https://github.com/nseidle/OpenLog/wiki/Datasheet

Depending on your refresh rate and NMEA sentences used, that data could really pile up. You may want to parse the GPS output and only keep the Lat Long.