Magic ePaper App

Magic ePaper App

Description:

Introduction to Magic ePaper App:

• Overview of a Flutter-based app that transforms user drawings/images into dithered bitmaps for e-ink screens via NFC.

• Brief background on e-ink displays, supported palettes (e.g., black/white/red), and typical use cases.

Architecture Snapshot:

• Modular code structure:

  • UI Layer: Flutter canvas with drawing/editing tools (brush, shapes, undo/redo).

  • Image Processing Pipeline: Custom approach for processing and dithering the images

  • Display Drivers: Overall architecture and integration of display drivers communication in the app.

  • NFC Module: Packaging dithered bitmap into packets to transfer it to an eink display

Live Demo & Code Walkthrough:

• Editor & Dithering Demo:

  • Quickly open the editor to show the image customization and editing features

  • Show real-time preview of converted bitmap in (e.g., black/white/red) mode.

• Code Snippet Tour:

  • Highlight Image processing to convert into the desired palette colors.

  • Explain the working of an image quantizer

  • Briefly inspect NFC write logic.

• Transfer to E-Ink Display:

  • Trigger NFC transfer; watch the physical e-ink module refresh with the new image.

Key Takeaways & Community Call-to-Action:

• Exploring all the features of the app, exploring new use cases from the audience.

• Invite contributors: to add new cool features, fix issues or bugs.

• Share GitHub repo link and quick start guide for first pull request.