| | | hi, I came to know that the power expansion can be used on J13 ( 1x4 pin jack). However, why there is a 2 positive holes and 2 negatives on this header? If i'm using a pair of DC motor 12V each, and i supply a 12v alkaline or NIMH rechargable (...) (26 years ago, 19-Nov-98, to lugnet.robotics.handyboard)
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