user33349: Is here some easy way to control bipolar motor
 without using any other external devices, drivers or shields? I have small motor from CD-ROM so I expect it's low voltage. By control I mean just turning clockwise  and anti-clockwise and speed. I'm looking for easy to make circuit not just direct control from Arduino.

user4143: No. You cannot directly drive any bare motor directly from an Arduino without any external components. To do so will damage the Arduino.
You need a motor driver (or at least some transistors and diodes etc) to control the motor.

user17196: Taking a guess here, the current this motor requires will be exceeding the safe operation limits of the Arduino's GPIO pins. Furthermore without a flyback diode the voltage spike across the motor (an inductive load) when the current is reduced/switched off might kill the GPIO pin.
You will need a motor driver or transistor with flyback diodes to operate it.
This is a nice tutorial that has it sorted out for a CD ROM brushless motor.

33349: <p>Is here some easy way to control bipolar motor
 without using any other external devices, drivers or shields? I have small motor from CD-ROM so I expect it's low voltage. By control I mean just turning clockwise  and anti-clockwise and speed. I'm looking for easy to make circuit not just direct control from Arduino.</p>
 4143: <p>No. You cannot directly drive any bare motor directly from an Arduino without any external components. To do so will damage the Arduino.</p>

<p>You need a motor driver (or at least some transistors and diodes etc) to control the motor.</p>
 17196: <p>Taking a guess here, the current this motor requires will be exceeding the safe operation limits of the Arduino's GPIO pins. Furthermore without a <a href="https://en.wikipedia.org/wiki/Flyback_diode" rel="nofollow noreferrer">flyback diode</a> the voltage spike across the motor (an inductive load) when the current is reduced/switched off might kill the GPIO pin.</p>

<p>You will need a motor driver or transistor with flyback diodes to operate it.</p>

<p><a href="http://www.instructables.com/id/Run-A-CDROM-Brushless-Motor-With-Arduino/" rel="nofollow noreferrer">This</a> is a nice tutorial that has it sorted out for a CD ROM brushless motor.</p>
