[aprssig] GPS GT-320FW(AS)

Jason KG4WSV kg4wsv at gmail.com
Sun Apr 21 09:06:55 EDT 2013

The datasheet indicates it has both TTL level and RS232 level
depending on which set of pins you use.

What isn't clear is the TTL voltage level - is it 3.3V TTL? 5V?  3.3V
but 5V tolerant?


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