Files

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Ken Van Hoeylandt fa4a6e255c New kernel drivers and device implementation updates (#561 )

- Added modular device support and devicetree bindings for ILI9341, ILI9488, CST816S, XPT2046, and GPIO button input, updating several board configurations for display/touch/backlight/keyboard/battery.
- Added a setting to control deprecated HAL usage (device property + Kconfig).

2026-07-12 23:54:55 +02:00

assets

USB host support (#527 )

2026-06-03 23:10:37 +02:00

include/tactility

New kernel drivers and more (#560 )

2026-07-12 00:29:12 +02:00

source

New kernel drivers and device implementation updates (#561 )

2026-07-12 23:54:55 +02:00

source-fonts

USB host support (#527 )

2026-06-03 23:10:37 +02:00

CMakeLists.txt

Update properties parsing for app manifest and device manifest files (#544 )

2026-07-03 00:29:01 +02:00

LICENSE-Apache-2.0.md

Rename icons, fix T-Lora Pager config and more (#502 )

2026-02-15 13:32:52 +01:00

README.md

Rename icons, fix T-Lora Pager config and more (#502 )

2026-02-15 13:32:52 +01:00

README.md

lvgl-module

This module manages the lifecycle of the LVGL library within the Tactility ecosystem.

What the library does

The lvgl-module provides:

Lifecycle Management: Handles initialization and termination of the LVGL library.
Task Management: Manages the LVGL main loop task.
Thread-Safety: Provides mutex-based locking mechanisms (lvgl_lock, lvgl_unlock) to ensure safe access to LVGL APIs from multiple tasks.
Font Access: Provides a unified interface to access pre-configured text and icon fonts.

Different types of fonts

The module supports two main categories of fonts:

Text Fonts

Standard text rendering uses the Montserrat font. Three sizes are pre-configured:

FONT_SIZE_SMALL
FONT_SIZE_DEFAULT
FONT_SIZE_LARGE

Icon Fonts

Icons are provided by the Material Symbols font, divided into three usage-specific sets:

Statusbar Icons: Optimized for the system status bar.
Launcher Icons: Sized for application launchers.
Shared Icons: General purpose icons used across the system.

How to update the fonts

Font sizes and symbols are configurable:

On ESP32 (IDF): Sizes can be updated via menuconfig or by editing sdkconfig. Look for CONFIG_TT_LVGL_FONT_SIZE_* and CONFIG_TT_LVGL_*_ICON_SIZE parameters.
On Simulator/POSIX: Default sizes are defined in Modules/lvgl-module/CMakeLists.txt.

If you change an icon font size, ensure that a corresponding C file exists in source-fonts/ (e.g., material_symbols_shared_24.c). These files are generated from TTF/OTF fonts using the LVGL font converter.

License

This module is licensed under the Apache v2.0 license.