[Al Skierkiewicz]

Originally Posted by lgz108

presently, i build a small surveillance robot with use of parallax basic stamp 2 microcontroller, when i plug my dc motor to it, i found that not enough faster the rotation of motor, got any idea to boost it up?
i suppose to modify the programming or add on a additional circuit?

If you are attaching a motor directly to the BS2 than you will damage the BS2. You need to follow the BS2 with a motor driver of some sort. There are many applications on the Parallax website for this.