crosspoint-reader/USER_GUIDE.md

CrossPoint User Guide

Welcome to the CrossPoint firmware. This guide outlines the hardware controls, navigation, and reading features of the device.

1. Hardware Overview

The device utilises the standard buttons on the Xtink X4 (in the same layout as the manufacturer firmware, by default):

Button Layout

Location	Buttons
Bottom Edge	Back, Confirm, Left, Right
Right Side	Power, Volume Up, Volume Down

Button layout can be customized in Settings.

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2. Power & Startup

Power On / Off

To turn the device on or off, press and hold the Power button for half a second. In Settings you can configure the power button to trigger on a short press instead of a long one.

First Launch

Upon turning the device on for the first time, you will be placed on the Home screen.

Note

On subsequent restarts, the firmware will automatically reopen the last book you were reading.

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3. Screens

3.1 Home Screen

The Home Screen is the main entry point to the firmware. From here you can navigate to Reading Mode with the most recently read book, Book Selection, Settings, or the File Upload screen.

3.2 Book Selection

The Book Selection acts as a folder and file browser.

• Navigate List: Use Left (or Volume Up), or Right (or Volume Down) to move the selection cursor up and down through folders and books.
• Open Selection: Press Confirm to open a folder or read a selected book.

3.3 Reading Mode

See Reading Mode below for more information.

3.4 File Upload Screen

The File Upload screen allows you to upload new e-books to the device. When you enter the screen, you'll be prompted with a WiFi selection dialog and then your X4 will start hosting a web server.

See the webserver docs for more information on how to connect to the web server and upload files.

3.5 Settings

The Settings screen allows you to configure the device's behavior. There are a few settings you can adjust:

• Sleep Screen: Which sleep screen to display when the device sleeps, options are:
  • "Dark" (default) - The default dark sleep screen
  • "Light" - The same default sleep screen, on a white background
  • "Custom" - Custom images from the SD card, see Sleep Screen below for more information
  • "Cover" - The book cover image (Note: this is experimental and may not work as expected)
• Status Bar: Configure the status bar displayed while reading, options are:
  • "None" - No status bar
  • "No Progress" - Show status bar without reading progress
  • "Full" - Show status bar with reading progress
• Extra Paragraph Spacing: If enabled, vertical space will be added between paragraphs in the book, if disabled, paragraphs will not have vertical space between them, but will have first word indentation.
• Short Power Button Click: Whether to trigger the power button on a short press or a long press.
• Reading Orientation: Set the screen orientation for reading, options are:
  • "Portrait" (default) - Standard portrait orientation
  • "Landscape CW" - Landscape, rotated clockwise
  • "Inverted" - Portrait, upside down
  • "Landscape CCW" - Landscape, rotated counter-clockwise
• Front Button Layout: Configure the order of the bottom edge buttons, options are:
  • "Bck, Cnfrm, Lft, Rght" (default) - Back, Confirm, Left, Right
  • "Lft, Rght, Bck, Cnfrm" - Left, Right, Back, Confirm
  • "Lft, Bck, Cnfrm, Rght" - Left, Back, Confirm, Right
• Side Button Layout: Swap the order of the volume buttons from Previous/Next to Next/Previous. This change is only in effect when reading.
• Reader Font Family: Choose the font used for reading, options are:
  • "Bookerly" (default) - Amazon's reading font
  • "Noto Sans" - Google's sans-serif font
  • "Open Dyslexic" - Font designed for readers with dyslexia
• Reader Font Size: Adjust the text size for reading, options are "Small", "Medium", "Large", or "X Large".
• Reader Line Spacing: Adjust the spacing between lines, options are "Tight", "Normal", or "Wide".
• Check for updates: Check for firmware updates over WiFi.

3.6 Sleep Screen

You can customize the sleep screen by placing custom images in specific locations on the SD card:

• Single Image: Place a file named sleep.bmp in the root directory.
• Multiple Images: Create a sleep directory in the root of the SD card and place any number of .bmp images inside. If images are found in this directory, they will take priority over the sleep.bmp file, and one will be randomly selected each time the device sleeps.

Note

You'll need to set the Sleep Screen setting to Custom in order to use these images.

Tip

For best results:

• Use uncompressed BMP files with 24-bit color depth
• Use a resolution of 480x800 pixels to match the device's screen resolution.

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4. Reading Mode

Once you have opened a book, the button layout changes to facilitate reading.

Page Turning

Action	Buttons
Previous Page	Press Left or Volume Up
Next Page	Press Right or Volume Down

Chapter Navigation

• Next Chapter: Press and hold the Right (or Volume Down) button briefly, then release.
• Previous Chapter: Press and hold the Left (or Volume Up) button briefly, then release.

System Navigation

• Return to Book Selection: Press Back to close the book and return to the Book Selection screen.
• Return to Home: Press and hold Back to close the book and return to the Home screen.
• Chapter Menu: Press Confirm to open the Table of Contents/Chapter Selection.

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5. Chapter Selection Screen

Accessible by pressing Confirm while inside a book.

1. Use Left (or Volume Up), or Right (or Volume Down) to highlight the desired chapter.
2. Press Confirm to jump to that chapter.
3. Alternatively, press Back to cancel and return to your current page.

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6. Current Limitations & Roadmap

Please note that this firmware is currently in active development. The following features are not yet supported but are planned for future updates:

• Images: Embedded images in e-books will not render.