MP Posted September 4, 2006 Report Share Posted September 4, 2006 It all depends upon the motors you are using. If you are using 5 volt motors, you can use 5 volt for all. I have 12 volt motors. This is why I used the 12 volt buss from the power supply for the motors. A PC power supply provides 5 volt and 12 volt. Red to Black is 5 volts and Yellow to Black is 12 volts. It also provides a negative 12 and negative 5 that you will not use.Here is an interesting website that discusses making a power supply from an old PC supply:http://web2.murraystate.edu/andy.batts/ps/POWERSUPPLY.HTMMP Quote Link to comment Share on other sites More sharing options...
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