Introduction: Dual Automatic Watch Winder

Picture of Dual Automatic Watch Winder

I have been always wondering why the watch winder devices are so expensive. Such a tool is, however, necessary especially for guys like me who don't wear their watch everyday. So, I decided to make one of my own, using an Arduino controller.

The basic idea is to use a stepper motor in order to rotate my watches. Moreover, by using the Arduino we can control the rotation frequency.

Here are the basic components I have used:

Step 1: The Schematics

Picture of The Schematics

We note that we can use the same power supply (12VDC) for both the Arduino and the EasyDriver. For the Arduino, however, we have to use a step down module in order to achieve an output voltage of 8VDC. Finally, the Arduino is powered via the VIN pin.

Step 2: Programming the Arduino

I use the following simple code in order to rotate the stepper motor in both directions.

int smDirectionPin = 3; //Direction
int smStepPin = 2; //Stepper

void setup(){
  pinMode(smDirectionPin, OUTPUT);
  pinMode(smStepPin, OUTPUT);
  Serial.begin(9600);
}
 
void loop(){

  digitalWrite(smDirectionPin, HIGH); //Set the rotation direction (HIGH is clockwise).
  /*Turns the motor 20000 steps*/
  for (int i = 0; i < 20000; i++){
    digitalWrite(smStepPin, HIGH);
    delayMicroseconds(800);
    digitalWrite(smStepPin, LOW);
    delayMicroseconds(800);
  } 

delay(1000); //Pauses for a second

digitalWrite(smDirectionPin, LOW); //Rotation direction (LOW is counter-clockwise).
  for (int i = 0; i < 20000; i++){
    digitalWrite(smStepPin, HIGH);
    delayMicroseconds(800);
    digitalWrite(smStepPin, LOW);
    delayMicroseconds(800);
  } 

delay(1000);

}

Step 3: Winding Your Watches

Picture of Winding Your Watches

The watch winder is finally ready. Time to wind your watches!

Comments

dmhoke (author)2017-06-29

Now, it would only wind my ol' pocket watch :)))

Swansong (author)2017-06-29

That's pretty neat, my nephew could use something like that :)

About This Instructable

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Bio: Interested in electronics, programming, automation.
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