Beats a good way to handle a DC motor?

Some new DC motor speed controller Tip Review: question sei15 ? beats a excellent way to control a DC motor I manage a DC motor with Arduino, rather than a governor, I believed with the Arduino running a relay to pulse the motor. I wanted to use the Arduino microcontroller to run for x milliseconds, then for a millisecond, and to improve or lower the speed alter only x. Are there inherent flaws, and if so, is there anyway I can solve Very best answer: Reply billrussell42 relays are not

Tesla's Energy Motor