MicroByte Arduino

A modular, feature-rich firmware for the ESP32-S3-DevKitC-1, designed for embedded applications with advanced UI, multitasking, and hardware abstraction.
Supports LVGL GUI, FreeRTOS process management, OTA updates, external app loading, and robust system/resource monitoring.

Originally based on the microByte project, this version has been adapted for Arduino and PlatformIO environments, with a focus on modularity and ease of use.

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Features

• Modular Drivers: WiFi, SD, display (ST7789), sound, vibration, LED, user input
• Process Manager: Multitasking, resource monitoring, process callbacks
• LVGL GUI: Modern, user friendly interface
• OTA Updates: Wireless firmware upgrades
• External App Loader: Run user apps from SD card
• System Monitoring: Heap/stack usage, task stats, watchdog
• NTP Time Sync: Accurate timekeeping
• Logging & Error Handling: ESP-IDF style logs, resource alerts
• Power Management: (Planned) Sleep modes, peripheral shutdown

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Hardware

• Target: ESP32-S3-DevKitC-1 (16MB QD, 8MB PSRAM)
• Display: ST7789 SPI TFT
• Input: Buttons, vibration motor, LEDs, speaker/buzzer
• Storage: microSD card (SPI)
• Connectivity: WiFi

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Project Structure

src/
 ├── components/
 │    ├── core/           # Process manager, system, app loader
 │    ├── drivers/        # Hardware abstraction (SPI, display, input, etc.)
 │    ├── system/         # OTA, NTP, watchdog, logging
 │    └── ui/             # LVGL UI, screens, widgets
 ├── main.cpp             # Entry point
 └── ...

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Getting Started

Prerequisites

• PlatformIO or ESP-IDF toolchain
• ESP32-S3-DevKitC-1 board
• microSD card (optional, for app loader)

Build & Flash

1. Clone the repository:

   git clone https://github.com/DRIFTYY777/microByte_Arduino.git
   cd microByte_Arduino
   

2. Build and upload:

   pio run --target upload
   

3. Monitor serial output:

   pio device monitor
   

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Usage

• On boot, the LVGL UI is displayed.
• Use hardware buttons for navigation.
• Apps can be loaded from SD card.
• OTA updates are available via WiFi.

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Customization

• Pin assignments: Edit in src/components/drivers/ or use a centralized config (recommended).
• Add drivers: Place new drivers in drivers/ and register with the core.
• UI: Modify or add screens in ui/.

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Troubleshooting

• Linker errors: Ensure all source files (e.g., spiManager.c) are included in the build.
• SPI errors: Check device handle initialization and SPI bus setup.
• Resource warnings: Monitor heap/stack usage via serial logs.

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Contributing

Pull requests and issues are welcome!
Please document new modules and follow the existing code style.

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License

MIT License

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Screenshots

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Credits

• LVGL
• ESP-IDF
• PlatformIO

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