Yet another Arduino based watch winder
Easy Watch Winder is an user friendly, low cost and watch-safe automatic watch winder.
Simply set the turns per day (TPD) and rotation variable in accordance with your wathc specification (See Orbita.com) and run the program :-D
The code is well commented and should be easy to modify for new and experienced programmers alike.
Stepper.h built-in Arduino library (Note: Risk of motor overheat. See code for comment and fix).
- Ardunio or compatible development board
- Stepper motor – E.g. Welleman vma401 (28BYJ-48)) with ULN2003 driver board (https://www.velleman.eu/downloads/29/vma401_a4v01.pdf)
- 5mm motor shaft coupler with flange coupling
- Arduino board
- Wires
- USB cable and power adapter
- Some sort of housing, e.g. a small box.
- Some small screws to attach motor and shaft coupler Photo showing connections on the Arduino
- Basic software and hardware to safely wind a watch.
- Proof-of-concept watch mount and electronic housing
- Advanced operation
- TPD selector
- Turn direction selector
- Power switch (preferably to cut power to both Arduino and stepper motor)
- Permanent watch mount and electronics housing
- Turns per day (TPD)
- Typically between 500-1000, ref. Orbita.com
- Rest (time)
- Function of TPD and RPM.
- RPM.
- Commercial watch winders typically use approx. 6-8 rpm.
- Direction of turning
- Clockwise (CW)
- Counter clockwise (CCW)
- Both
- Smooth motor operation
Example watch movement specification:
| Movement | TPD | Turn direction |
|---|---|---|
| Sellita SW200 | 650-800 | Both |
- Three-way switch for selecting rotation
- Two-way on-off switch
- Rheostat for adjusting TPD
- Angle of watch housing?
- Commercial watch winders use both vertical, horizontal and slanted mounting. Probably does not affect performance.
- De-Magnetization?
- One source mentions this, probably safe to disregard.
- https://www.orbita.com/winder-support
- https://blog.crownandcaliber.com/how-to-use-a-watch-winder/
- https://www.buywatchwinders.com/blog/how-to-properly-use-and-set-your-watch-winder/
- https://www.barringtonwatchwinders.com/how-it-works
- https://www.timetutelary.co.uk/pages/what-is-a-watch-winder
- https://www.arduino.cc/reference/en/
- https://www.instructables.com/id/How-to-use-Potentiometer-Arduino-Tutorial/
- https://www.arduino.cc/en/tutorial/potentiometer
- http://www.lucadentella.it/en/2014/08/01/interruttore-a-tre-posizioni-e-arduino/
- https://www.open-electronics.org/the-power-of-arduino-this-unknown/
- Options for powering the Arduino, see VIN.
This project is licensed under GPLv3 (or later)