Computerized Spinning Button

Introduction: Computerized Spinning Button

About: I am an author and a maker. My current project is Santa's Shop. I'm working on a science fiction type book--more later. @EngineerRigsby

While sitting around spinning a button on a string, I realized that this was not the best use of time.  By utilizing the power of the Arduino, along with a servo motor, battery and 3D printer; I was able to take this task--which a small child can do--and automate it.

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Step 1:

Take a 20 inch long piece of 1 1/2 inch OD acrylic tubing along with an HS-311 servo motor, Arduino Uno, and 9 volt battery with holder and integrated battery switch.  Add a printed button, string, end pieces and servo motor holder.

Printed parts and design files can be found at:

Step 2:

Insert the end pieces into the tube.

Step 3:

Add the servo motor holder.

Step 4:

Drill out the end of the servo horn so that a piece of string will fit.

Step 5:

Insert the servo motor and servo motor cover.

Step 6:

Run string through the button and both ends.  Cut and tie.

Step 7:

Wire according to the schematic.

Program the Arduino with the following  complex code:

#include <Servo.h>

Servo button;

void setup()




void loop()






Step 8:

Wind the button up and turn on the switch. 

Now, your days of tedious button spinning are over!

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    2 Discussions


    6 years ago on Introduction

    I remember many years ago when my dad made me a "buzz saw" as he called it just took it much , much further !


    Reply 6 years ago on Introduction

    Thanks for the comment! I'm not sure why this is fascinating to operate, but it is. Of course, the larger the button's diameter, the easier the process is. I just got curious as to whether this could be automated, so I gave it a try. The Arduino code has to be one of the shortest software listings I have ever written that does anything.