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Subject: Switching between power sources

Date: 01/20/03 at 3:01 AM
Posted by: Bill
E-mail: billpa@comcast.net
Message Posted:

Hi. I'm trying to power a microcontroller from either of two sources (USB power or 5v battery) but not both. Any suggestions on how I can automatically switch between them, i.e., use the battery power until the USB is plugged in, then switch to usb power.

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