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GS407 GPS voltage

Tips and questions relating to the GPS modules from SFE

GS407 GPS voltage

By mabnz
-  Sun Jul 28, 2013 6:57 pm #162025
Hey guys,

To use this GPS module with a 5V Arduino (for example, the Uno), will I need a logic level convertor, or merely connect the 3.3V to the GPS?

Re: GS407 GPS voltage

By mabnz
-  Mon Jul 29, 2013 1:43 pm #162071
jremington wrote:http://lmgtfy.com/?q=connect+3.3v+to+5v
That wasn't really what I was asking though.

I'm feeding the module 3.3v. Since a GPS doesn't usually require input, will I need to shift the levels, or will my Arduino Uno be comfortable receiving (what I assume are) 3.3v signals?

Re: GS407 GPS voltage

By skimask
-  Mon Jul 29, 2013 10:47 pm #162082
mabnz wrote:
jremington wrote:http://lmgtfy.com/?q=connect+3.3v+to+5v
That wasn't really what I was asking though.

I'm feeding the module 3.3v. Since a GPS doesn't usually require input, will I need to shift the levels, or will my Arduino Uno be comfortable receiving (what I assume are) 3.3v signals?
Well, since your GPS is running at 3.3v, and your Arduino is running at 5v, there's practically zero chance that you will overvolt your Arduino with a signal from the GPS, so, if you hooked it up and tried it, what's the worst that could happen (assuming you hook it up correctly)?
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