Page 79 - Movement Challenge

range of different speeds.

Imagine if you were able to turn a light on and off incredibly fast - you would effectively be
able to change the brightness in the room depending upon how long the light was on versus
how long the light was off each second. But, the brightness of the light’s bulbs would not be
changing. The only factor changing would be the amount of time the light was on.

That is how the Smart Motors set a velocity. They turn on and off faster than is perceivable
so that they seem to be powered at specific speeds. The blocks for setting velocity let the
programmer enter a velocity that is sent to the microprocessor which sets the rate at which
the motor turns on and off.