Well my experience With the adafruit breakout GPS module has been good. Took it a couple of minutes from cold start, to work out where it was, that from new.
It does much the same after a power cycle, I have no battery attached to it
Will run from 3.3 or 5V serial output is 3.3V so you might need to use an interface if using TTL levels.
Obviously I am using it for my RPI projects, but it’s good to feed other things with a bit of interface work.
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