i need motors to run on 9volt power
can someone plese tell me how to make to motor spin faster and also i have to add 3 more motors so can someone please tell me how to make four motors spin fast from an arduino duimilanove ATMEGA328.
hey for the motor controller here is the link http://www.robotshop.com/sfe-2a-5v-16v-dual-serial-motor-controller-4.html. for the motors i want to make them all turn at full power at the same time and at max speed so if i use a timed switch would the motors still require their own power source witch i wanted 2 use 9v batteries for each individual motor and how would i code that so that the arduino turns on the motors. the two motors i was thinking of using are http://www.radioshack.com/product/index.jsp?productId=2909786 or http://www.radioshack.com/product/index.jsp?productId=2102828thank you for your help
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