CD Spinner without using Arduino

The objective that I chose for myself for this assignment was to do the assignment without using the Arduino. As I discussed in the class, I thought it would be possible and it was. Though it is not as sensitive to the potentiometer as it would be when using an Arduino but it was cool but easy to redesign  the circuit.

The components used:

1. DC Motor

2. Potentiometer

3. Battery

4. Zener Diode

5. Transistor

6. Copper Wire for completing connections

I did not use any resistor since it would further decrease the voltage decreasing the sensitivity of the motor with respect to the potentiometer. The CD spinner is action is a http://www.youtube.com/watch?v=L5ad3H6wxNg

A picture of the circuit is attached