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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 #513365

Member Since: January 25, 2014

Country: United States

  • The motor was likely still spinning under momentum, turning it into a generator. If it was a permanent magnet motor. So feeding opposite voltage to reverse it probably spiked the current. Try using the brake function to bring motor to a full stop before switching direction.

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