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Seeed Arduino LCD

A professional graphics library for Seeed hardware platforms, forked from TFT_eSPI with significant enhancements to support Seeed's development boards and display modules.

Key Features

  • Enhanced Processor Support: Expanded compatibility with Seeed's diverse microcontroller lineup
  • E-Paper Display Integration: Full support for E-Paper displays with SSD1680, SSD1681, and JD79686B drivers
  • Platform-Specific Optimizations: Tailored implementations for superior performance on Seeed hardware
  • Unified API: Consistent programming interface across different display technologies
  • Power Management: Advanced sleep/wake functionality for battery-powered applications

Supported Platforms

Core Hardware Support

  • Wio Terminal
  • XIAO SAMD21
  • XIAO RP2040/RP2350
  • XIAO ESP32C3/ESP32S3/ESP32C6
  • XIAO NRF52840
  • XIAO MG24
  • XIAO RA4M1

Display Technologies

  • Standard TFT LCD displays (inherited from TFT_eSPI)
  • E-Paper displays (new implementation)
    • SSD1680-based displays
    • SSD1681-based displays
    • JD79686B-based displays

E-Paper Implementation

The library includes a comprehensive implementation for E-Paper displays, providing:

  • EPaper Class: Specialized class extending TFT_eSprite for E-Paper functionality
  • Dual-Buffer Rendering: Efficient update mechanism using sprite-based buffering
  • Power Management: Automatic sleep/wake cycles to maximize battery life
  • Partial Updates: Support for region-specific refresh to improve update speed
  • Display Orientation: Flexible orientation settings via configurable mirroring
// Example usage
EPaper epaper;
epaper.begin();
epaper.fillScreen(TFT_WHITE);
epaper.drawString("Hello E-Paper", 10, 10, 2);
epaper.update();  // Explicit update required for E-Paper displays

Technical Enhancements

Processor-Specific Optimizations

  • Added specialized implementations for SAMD21, RA4M1, nRF52840, and MG24 processors
  • Expanded ESP32 variant support including C3, C6, and S3 models
  • Register-level optimizations for maximum performance on each platform

File System Integration

  • Seamless integration with Seeed_Arduino_FS for compatible platforms
  • Fallback to standard FS library for other platforms

Low-Level Display Interface

  • Platform-specific implementations of SPI and parallel interfaces
  • DMA acceleration where supported by hardware
  • Custom pin configurations for Seeed development boards

Example Applications

The library includes numerous examples demonstrating:

  • Basic drawing and text rendering
  • Advanced sprite manipulation
  • E-Paper-specific applications
  • Hardware-accelerated rendering techniques

Installation

  1. Download this repository
  2. Install it into your Arduino libraries folder
  3. Select the appropriate setup configuration for your hardware

Documentation

For detailed implementation information:

  • Refer to original TFT_eSPI documentation for core functionality
  • See examples directory for platform-specific usage guidance
  • Explore the Extensions directory for advanced features

Licensing

This library is released under the same license as the original TFT_eSPI library.

Acknowledgments

Based on the excellent work of Bodmer's TFT_eSPI library, with significant enhancements by the Seeed Studio development team to support Seeed's hardware ecosystem.

For more information, please refer here