https://github.com/apexskier/slider

Arduino based mechanical slider.
https://github.com/apexskier/slider

3d-printing arduino camera-slider iot

Last synced: 3 days ago
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Arduino based mechanical slider.

• Host: GitHub
• URL: https://github.com/apexskier/slider
• Owner: apexskier
• Created: 2016-05-05T03:59:50.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-11-16T16:52:51.000Z (about 8 years ago)
• Last Synced: 2024-11-07T12:52:27.819Z (about 2 months ago)
• Topics: 3d-printing, arduino, camera-slider, iot
• Language: OpenSCAD
• Size: 1.74 MB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Slider

Arduino driven mechanical video slider.

[Parts list](https://docs.google.com/a/camlittle.com/spreadsheets/d/1xlj7D98955wYuXj9ept1h3pb_NClaukpYvvVbXTrUsw/edit?usp=sharing)

## Finished project

![Control box and motor housing](images/control_box.jpg)

![Timing belt pully and 3D printed mount](images/printed_pully.jpg)

## Features

- Auto calibration

- Simple oscillation between each end

- Single direction movement towards the end

- Speed control

## Code

The code is controlled by a basic state machine, paired with global application

state and event triggers. When powered on, the system enters the

CalibratingFindLeft state.

Each button produces buttonDown and buttonUp events as they are pressed and

released.

These are the main state transitions:

```

Stopped

  - main buttonUp -> OscillatingLeft

  - left buttonUp -> MoveLeft

  - right buttonUp -> MoveRight

OscillatingLeft

  - position at left side -> OscillatingRight

  - main buttonDown -> Stopped

OscillatingRight

  - position at right side -> OscillatingLeft

  - main buttonDown -> Stopped

MoveLeft

  - position at left side -> Stopped

MoveRight

  - position at right side -> Stopped

CalibratingFindLeft

  - left buttonDown -> CalibratingFindRight

    (record "0" point)

CalibratingFindRight

  - right buttonDown -> CalibratingReset

    (record slider length)

CalibratingReset

  - position past center -> Stopped

```

In most cases, when in motion buttonDown events on the direction of motion's

switch automatically adjust the internal calibration. There are a few other

event handling checks to safeguard against unexpected behavior.

## Resources

These two DIY slider designs contributed heavily towards ours.

- http://s.co.tt/2015/04/24/diy-motion-control-camera-slider/

- https://learn.adafruit.com/bluetooth-motorized-camera-slider