SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).


Member Since: May 18, 2011

Country: United States

  • Newbie here. I ran the code above using the Ardumoto shield on a Uno. As long as I use the USB Serial connection, it runs great. When I remove the USB Serial Connection and am powering it from a 4 AA batteries, it will run forward, but will not reverse directions.
    Can you help me?

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