A custom boot firmware and bootable operating system for the Elecrow CrowPanel 7.0" ESP32-S3 HMI Display.

• Display: 7.0" TFT LCD (800x480 resolution)
• Processor: ESP32-S3-WROOM-1-N4R8 (240MHz dual-core)
• Memory: 4MB Flash, 8MB PSRAM
• Touch: Capacitive touch screen
• Connectivity: WiFi 802.11 b/g/n, Bluetooth 5.0
• Interfaces: 2x UART, 2x GPIO, 2x I2C, 1x Battery, TF card slot

• Custom bootloader with SD card support
• LVGL-based graphical user interface
• Touch screen support
• WiFi and Bluetooth connectivity
• File system support (SPIFFS + SD card)
• Modular application loading system
• Over-the-air (OTA) update capability

├── bootloader/          # Custom bootloader
├── firmware/           # Main firmware
├── os/                 # Bootable OS components
├── apps/               # Application modules
├── tools/              # Build and flash tools
├── docs/               # Documentation
└── examples/           # Example applications

• ESP-IDF v5.0 or later
• Python 3.7+
• Required tools: esptool, idf.py

# Set up ESP-IDF environment
source $IDF_PATH/export.sh

# Build the project
idf.py build

# Flash to device
idf.py flash

1. Format SD card as FAT32
2. Copy os/ directory contents to SD card root
3. Insert SD card into device
4. Power on device

• Bootloader: Custom bootloader with SD card detection
• Firmware: Main system firmware with LVGL integration
• OS: Modular operating system components
• Apps: Loadable application modules

MIT License - see LICENSE file for details