USB 8bit Interface Board

Posted on Feb 5, 2014    11189

The goal was to make a small USB interface board which could easily be connected to microcontroller boards. It should support USB-powered as well as externally-powered operation. External components are kept at a minimum (but there are still quite a lot of them). The board may be used as USB-powered device (externally connect pins 1 and 2 on the S

USB 8bit Interface Board
Click here to download the full size of the above Circuit.

UPPLY pin header) and as externally-powered (leave pin 1 open and apply 5V to pins 2 and 3).

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