They are 1.8VDC.

--- On Thu, 2/7/13, Fritz Sonnichsen <> wrote:

From: Fritz Sonnichsen <>
Subject: [Gumstix-users] TOBI - Serial Voltage Levels
Date: Thursday, February 7, 2013, 8:09 AM

Can anyone tell me the acceptable voltage ranges that the TOBI serial
port inputs and outputs can operate at?

Thank You

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