Creative Technologies > Reference > Standard servo

Standard servo

Standard servos have a rotation angle limited to 180º. It has precise control over the angle of rotation.

Materials

  • 1 Arduino Uno board
  • 1 Education Shield
  • 1 standard servo

Instructions

  1. Attach the shield onto the top of the Arduino board.
  2. Attach a servo arm to the standard servo.
  3. Connect the standard servo to D9.
  4. Connect the board to the computer and upload example ‘StandardServo’.

Code

Find the code in Example>EducationShield>Help>StandardServo



Commands


    

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    #include <Servo.h> – includes the Servo library used to control the servos.
    

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    Servo – creates a servo object.
    

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  • attach( digitalPin ) – attaches the servo to a digital pin.

      

    • Parameters

        

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        (int) digitalPin – the digital pin to which the servo is connected.
        

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  • write( degrees ) – makes the standard servo shaft rotate to a specific position.

      

    • Parameters

        

      • (int) degrees – the angle position to which the servo is rotated to. A value between 0 and 180.
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Note: Due to the mechanical design of your projects, sometimes the allowed rotation angle for the servo is much smaller than 180 degrees. If you see the servo arm pushing/pulling hard against other parts of your project, try taking down the servo arm, put it back to a more appropriate angle. You may need a few tries before getting it right.



Troubleshooting


    

  1. Make sure you have connected the servo to the same pin as you have stated in the code.
    2.