Getting Started with LightTouch

When you first open the LightTouch software, you will arrive on the Home Page, where you’ll find four main buttons centered on the screen:

• Camera Calibration
• Learn to use LightTouch
• Settings
• Key Bindings

Each of these buttons leads to an essential feature of the application. Let’s go through them one by one, starting with the first.

Summary

- Camera Calibration

- Learn to use LighTouch

- Settings

- Key Bindings

- Contact

Camera Calibration

The Camera Calibration screen is not something you need to interact with directly, but it plays a critical role behind the scenes.

When you click this button, the software communicates with the LightTouch device via Bluetooth. The purpose of this screen is to help the camera mounted on the LightTouch unit recognize your display screen.

What happens on this screen?

• A white screen with colored borders will appear.
• This screen acts as a visual reference for the LightTouch camera, helping it detect the edges and orientation of your monitor.
• You don’t need to take any action. Just wait.
• Once the calibration is successful, the screen will automatically close, and you’ll be ready to move on.

Think of this like tuning an instrument: you’re not playing music yet, but this step ensures everything is properly aligned before you begin.

Summary

• You start on a homepage with four key features.
• Camera Calibration helps the LightTouch camera detect your screen, with no user action required.
• The process is automatic and quick.

Learn to use LightTouch

The Learn to use LightTouch menu is a step-by-step tutorial designed to help you get comfortable with how the system works. If you’re ever unsure of what to do, this is the place to start.

This guided experience walks you through the basic gestures and interactions supported by LightTouch. Here are the steps you'll go through:

Step 1: Swipe Right

Start by performing a simple rightward swipe, a smooth hand motion from left to right in front of the camera.

Step 2: Swipe Left

Next, do the same motion but in the opposite direction. Swipe your hand from right to left. These basic gestures are the foundation for navigating within LightTouch.

Step 3: Move the Cursor

You will now learn how to control the mouse cursor using just your hand:

• Make sure you are clearly visible to the camera.
• Move your hand slowly and steadily.
• Observe how the cursor follows your hand movements.

Take your time to get used to the sensitivity and accuracy.

Step 4: Aim at a Target

In this final step, you'll practice aiming at a target using the same hand-controlled cursor.

• A target will appear in the center of the screen.
• Use your hand to move the cursor over it.
• Once you align correctly, the system will recognize the gesture.

This step ensures that you’re ready to use LightTouch effectively.

Summary

• The tutorial guides you through four steps: swipe right, swipe left, move the cursor, and aim at a target.
• It helps you build confidence and precision with hand gestures.
• After completing it, you’re ready to use LightTouch in the best conditions.

Settings

At the bottom-left of the Home Page, you’ll find the Settings button, a crucial menu for customizing and improving your experience with LightTouch.

Clicking on it will take you to a new screen with several configuration options. From top to bottom, let’s go through each setting and explain how it works.

Screen Reader

This option enables the screen reader, providing audio feedback for buttons and interface elements.

• The voice adapts automatically based on the language selected (French or English).
• When this feature is on, you'll hear the name of elements as you focus on them, offering better accessibility and guidance.

Text Size

You can choose between three different text sizes:

• Default is medium.
• Use the slider to make the text smaller or larger.
• Adjust it freely from left (smallest) to right (largest), depending on your preferences.

Dark Theme

LightTouch respects your system’s theme preference by default. However, you can override this by manually toggling the Dark Theme:

• Turn it on for a darker, eye-friendly interface.
• Turn it off for a brighter version of the software.

This allows for better visibility depending on lighting conditions.

Presentation Mode

This mode is designed to turn LightTouch into a presentation tool, ideal for software like PowerPoint.

• Mouse and hand navigation are disabled.
• Only swipe gestures remain active to switch between slides.
• By default:
  • A rightward swipe = right arrow key
  • A leftward swipe = left arrow key

You can customize these gestures anytime (see the Key Bindings section for more details).

Navigation Mode

Opposite to Presentation Mode, Navigation Mode enables full interaction:

• Hand tracking remains active.
• Gestures like scrolling, zooming, and cursor movement simulate real mouse behavior.
• Swipe gestures are disabled to avoid accidental slide changes.

This is the default mode for general usage.

Language

LightTouch supports two interface languages: English and French.

• Use the dropdown menu to the right to select your language.
• The entire interface updates instantly upon selection.

Choose the language you're most comfortable with for the best experience.

Dominant Hand

This setting lets you select your dominant hand for using LightTouch:

• Default is right hand.
• You can switch to left hand if you prefer.

LightTouch focuses on one hand at a time to avoid confusion and accidental inputs. This helps prevent cursor jumps when your non-dominant hand is detected.

Summary

• The Settings menu allows you to fine-tune your LightTouch experience.
• You can customize accessibility, appearance, interaction modes, language, and dominant hand.
• Each option is designed to provide flexibility, comfort, and a personalized user experience.

Key Bindings

Located at the bottom-right of the Home Page, the Key Bindings menu allows you to customize the keyboard keys triggered by gestures when using Presentation Mode.

By default, the swipe gestures are mapped as follows:

• Swipe Right → Right Arrow key
• Swipe Left → Left Arrow key

However, you can assign any key you prefer to each gesture. This gives you full control over how LightTouch interacts with your system during presentations.

How to Customize Key Bindings

1. Click on the Key Bindings menu.
2. You’ll see two fields: one for the Swipe Right action, and one for Swipe Left.
3. To change a key:
   • Click on the box next to the gesture.
   • The box will change color to indicate it's selected.
   • Press any key on your keyboard.
   • The selected gesture will now be mapped to that key.

Important Rules

• Each key can only be assigned once.
  • If you try to assign a key that’s already in use for another gesture, the box will turn red.
  • A warning notification will also appear at the bottom of the screen.
• Simply choose a different available key to resolve the conflict.

This feature is especially useful if you have specific preferences or accessibility needs during presentations.

Summary

• Key Bindings lets you map gestures to the keys of your choice in Presentation Mode.
• Default mappings are the left and right arrow keys.
• Customizing keys is easy and intuitive.
• The system prevents conflicts by notifying you if a key is already in use.

Thank You

Thank you for using LightTouch.

It means a lot to us to provide you with an experience that is both smooth and enjoyable. Your satisfaction is our top priority.

If you have any questions, issues, or special requests, feel free to contact us at:

➡️ contact.lightouch@gmail.com ⬅️

We're here to help and always happy to hear from you.