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Originally Posted by Dr.Bot
OK What is the fourth (orange) wire for?
PS. I tried getting a red victor to work without luck.
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The fourth wire (orange, opposite the black wire) is just another +V pin. It performs the exact same function as the second wire from the black side (red).
As a rule of thumb, never just connect two things together, unless you seriously know what you're doing, and how you're doing it. In this case, if you connect these things in the wrong orientation and position, there's a good chance you could damage the components permanently.
I highly recommend that you read the EduBot documentation from Innovation First's website. Here're some links:
http://innovationfirst.com/FIRSTRobo...umentation.htm
http://innovationfirst.com/FIRSTRobo...2003-11-14.pdf