FROLUNDA DATA Skyle 2 for iPad Pro User Manual
- October 27, 2023
- FROLUNDA DATA
Table of Contents
FROLUNDA DATA Skyle 2 for iPad Pro
Skyle 2 for iPad
Thank you for choosing Skyle 2 for the iPad. Skyle 2 for iPad is an eye
tracker designed for iPad Pros of the 3rd to 5th generation. With the Skyle
software and AssistiveTouch from Apple, the complete iPad Pro can be
controlled contactless. If you want to integrate Skyle into your own
application, you are free to use the public API.
You can find it at www.github.com/eyev-de
What’s in the box
- 1x Skyle 2 eye tracker attached to iPad Case.
- 1x USB PD Hub.
- 6x Housing screws with Torx/Hex/Allen Key
- 4x Screws for VESA-Mount with Torx/Hex/Allen Key.
- 1x USB-C to USB-A cable.
Technical Specifications
Supply voltage 5V DC
Current consumption 0.9 A
Sampling rate 18 Hz (max. 30Hz)
Accuracy 1° – 2°
Eye tracking mode Binocular
Operating distance 45 – 65cm
Dimensions (L) 282.5 x (W) 42.5 x (H) 39mm
Device Compatibility iPad Pro 12.9” 3rd to 5th Generation
Mounting possibilities VESA 75 Standard
Please note:
Inclusive Technology reserves the right to make modifications, improvements,
corrections, or other changes without further notice to this document and any
product described herein. This product is not authorized for use as a critical
component in life support devices or applications, where the use can be
reasonably expected to result in significant injury to the user.
Getting Started
This chapter describes the basic setup of the eye control and the installation of the software.
Assembly
-
The Skyle 2 eye tracker is already attached to the housing on delivery. A cable that leads to the iPad is also attached to the case. The housing consists of two parts that are supplied and already assembled.
Please carefully loosen the green-marked snaps and remove the front in the red-marked direction. -
Place the iPad into the back pane and connect the USB-C cable to your iPad.
-
Place the front panel on the iPad. Make sure the clips snap into place, flip the case and apply the screws.
Connect the eye tracker
The included hub has 2 USB-C ports. All important ports are marked. One USB-C port is for the USB-C cable coming out of the case, which is connected to the iPad. The other USB-C port can be used for simultaneous charging. The included USB-A to USB-C cable is connected to the hub with the USB-A end. The USB-C end is connected to Skyle 2. The hub can now be attached to the case with the already attached adhesive Velcro®.
How to position your students
As with any access device, the correct positioning of equipment and student is
essential in getting the most out of Skyle 2. Good seating and positioning
guidelines, that your Occupational Therapists will be able to advise you on,
are where to start. Use the student’s own supported seating system as
appropriate or in any position where the student is comfortable, relaxed, and
able to see the screen easily. The Skyle 2 camera will need to have a good
view of the student’s eyes in order to track them accurately.
Here are a few positioning guidelines; Reclined positioning
You may need to mount the screen above the student using specialist mounts
e.g. floor mount. Tilted head positioning
If a student’s head is normally tilted, you can tilt the screen and tracker to
match. Positioning correctly
The eye gaze tracker software will let you know if the student is positioned
correctly or not. Students wearing glasses
Lots of eye trackers work with most lenses ( some specialist lenses can be tricky ). Watch out for frames obscuring the student’s eyes.
Lighting Conditions
The student and tracker may struggle to see in bright light conditions. Watch
out for reflections off lenses and other screens interfering.
Skyle X App
The App can be used to calibrate the controller or customize the appearance. With AssistiveTouch you are able to control the iPad’s mouse cursor without physical contact.
Installation
The Skyle X App for iPad can be downloaded here:
https://apps.apple.com/us/app/skyle-x/id1570826111
Download and install the “Skyle X” application on your iPad from the link
above or the QR code. This App is
required for the user-specific calibration of the eye tracker. The App also
offers the possibility to display the
camera feed of the eye control to carry out an optimal positioning. The
details of the software are described in
the following chapters.
Setup
The Skyle X App will display instructions on first load to set up AssistiveTouch on your iPad. These instructions must be followed to enable eye tracking.
- Go to “General > Trackpad & Mouse” in the iPad Settings App and make sure the settings match the following.
- Go to “Accessibility > Touch AssistiveTouch” in the iPad Settings App and make sure the settings match the following.
- Go to “Accessibility > Touch > AssistiveTouch > Movement Tolerance” in the iPad Settings App and make sure the settings match the following.
- Go to “Accessibility > Pointer Control” in the iPad Settings App and make sure the settings match the following.
- Go to “Display & Brightness” in the iPad Settings App and make sure the settings match the following. Please Note: You can only enter the menu “Trackpad & Mouse” if the Skyle 2 is connected.
Stream
The stream can be viewed for correct positioning and important settings can be made here. Settings are explained in more detail in the following sections. The exit will minimize the Skyle X App enabling you to control your iPad.
Positioning
If the eye tracker is ready for use, eye movements are converted into mouse
positions. If not, make sure that the user is positioned correctly. This means
that the built-in camera must recognize your eyes completely.
To do this, open “Stream > Video”. The pupil and the two white reflections
in the eye must be clearly visible and sharp. The optimal position is when the
user is positioned parallel to the screen surface and the eyes are centered on
the video stream. The recommended distance is ~60cm.
The video stream is turned on by default, but it can also be turned off or toggled so that only a simplified guided display with assistance is shown.
Calibration
Each eye is unique and must therefore be calibrated to control the iPad. The calibration can be started directly on the start page of the App.
Before a calibration is started, it is possible to select how many points are to be used for the calibration. A higher number of points takes longer but usually achieves more accurate results.
- For emerging eye gaze users a 1 or 2-point calibration is recommended
Please make sure that the positioning is correct. If you are too close or too far away, this will be displayed. The bar on the right and bottom indicate whether the user is centered both horizontally and vertically
.Calibration starts automatically as soon as a correct position is kept for a certain time.
- Calibration can also be started instantly by selecting “Start”.
Once this is done, the cursor jumps to 1-9 different positions which the user must focus on. Please focus on the center of the circle. The appearance of the cursor can also be customized in the App settings.
Once the calibration is finished, these points are displayed on the screen. Please check in this step if the accuracy is satisfactory or repeat the calibration. When nothing is detected, the calibration will end after a timeout of 100 seconds and uses the previous calibration profile. In the App Settings you can switch the standard calibration method between a 1-, 2-, 5- and 9-point calibration. Additional Features
Step by Step Calibration / Stepped
The calibration can also be done step by step, when a touch of the screen advances the calibration point. You can activate this option under **“Settings
-
Calibration”.**
Help to improve the eye tracking algorithm
If “Record Calibration” is activated, test data is uploaded after
completion of a calibration. This is used to improve the eye tracker
.
Profiles
Profiles can be created for each individual accessing Skyle 2 for iPad Pro.
Profiles can be used to store respective calibrations and personalize filter
settings and sensitivity.
The Gaze Filter determines the tracking speed and smoothness of the user’s
gaze point. The Fixation Filter adjusts the steadiness of the gaze point when
fixation is taking place.
Gaze Selection
These settings affect the behavior of the dwell control.
UI uses Gaze Selection
The “UI uses Gaze Selection” setting enables/disables the user’s ability to make selections in the Skyle X App using their gaze. This feature can only be toggled using touch, and not with dwell selection; To avoid accidentally disabling the ability to make interactions using gaze selection in the Skyle X App. This feature cannot be changed if a user’s eyes are detected.
Dwell time and Scroll Speed
The dwell time determines the time a user must gaze at an option before a
selection is made. This setting affects the dwell time in the Skyle X App only
.
Calibration Pointer
The animation pointer during calibration can also be adjusted to the user’s needs. All changes are visible in the preview.
Update
Updates for the eye control can be installed via the App. If a new update is available, a small red dot will appear in the left corner The update can now be found in the settings under “Update”.
If an update has been installed, the eye control will restart itself
.
Advanced Settings
The advanced settings allow soft or hard reboot and factory reset.
Improvement
If you’re having issues, test data can be collected to improve the quality of
the eye control. A 9-point calibration is performed during the collection
(“Calibration-> Recording calibration”).
The test data recorded during this process can then be checked and sent off.
If you want your data to be deleted, please send an email with the
corresponding character string, which you can find in the App under
“Settings - > Recordings”.
Safety Instructions
Please observe the safety instructions supplied with the device.
Skyle 2 Troubleshooting
“Skyle eye tracker undetected, please reconnect” error message displayed in Skyle X App
- Check eye tracker is connected properly to the hub and the hub is connected to the iPad – See page 6 for more details.
- If the iPad charging cable was connected when the iPad was turned on, disconnect the cable and wait 30 seconds for the eye tracker to power on and connect. Then reconnect the iPad charging cable if required. See Page 6 for more details.
Eyes not displaying in positioning guide
- Check that the plastic protective film has been removed from the eye tracker.
- Check the LED’s lights are lighting up on the eye tracker.
- Check if the eye tracker is plugged into the hub.
Mouse cursor not accurate
- Accuracy issues are often due to poor positioning or the environment the eye tracker is being used in.
- Sit approximately 45 – 65 cm (about arm’s length) away from the device.
- Avoid any light shining directly onto the eye tracker i.e., avoid using it facing a window.
- Adjust the angle so the user can see the reflection of their own eyes in the eye tracker. See Page 7 for more details.
Erratic mouse cursor movement
Check iOS Settings
- Accessibility > Touch > AssistiveTouch > Tracking Sensitivity is set to the lowest value.
- General > Trackpad & Mouse > Tracking Speed is set to the lowest value. See Page 9 for more details.
CONTACT US
If you require any further assistance please visit
www.inclusive.co.uk/technical-support/product-list/skyle-for-iPad-
pro
010-405 68 55
info@frolundadata.se
www.frolundadata.se
References
Read User Manual Online (PDF format)
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