Level Converter on a Fonera

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snoop
DD-WRT Novice


Joined: 01 Nov 2009
Posts: 5
PostPosted: Sun Nov 01, 2009 17:41    Post subject: Level Converter on a Fonera Reply with quote
I live in Philly and we have free wireless through out the entire city and I was trying to build a router that can track my vehicle and upload the coords to the web. I am trying to connect my GPS to my Fonera via the serial port inside. I need to build a level converter for it. I am unsure if the level converter tutorial http://www.dd-wrt.com/wiki/index.php/LaFonera_Hardware_Serial-Cable-Port#First_.28ugly.29_circuit:

will work. My fonera outputs 3.3v and the GPS wants 5v. Any advice on how to get this going would be helpful.
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beyondwind
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Joined: 27 Oct 2009
Posts: 19
PostPosted: Tue Nov 03, 2009 3:52    Post subject: Reply with quote
the two transistor version can work. A simpler and better solution is to use 2 MOSFET transistor, provide that you can also have a 5v power pin from the GPS unit.
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