115 lines
4.5 KiB
Markdown
115 lines
4.5 KiB
Markdown
## Overview
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Tactility is a front-end application platform for ESP32. It is mainly intended for touchscreen devices.
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It provides an application framework that is based on code from the [Flipper Zero](https://github.com/flipperdevices/flipperzero-firmware/) project.
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**Status: Alpha**
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Noteworthy features:
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- Touch UI capabilities (via LVGL) with support for input devices such as on-device trackball or keyboard.
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- An application platform that can run apps and services.
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- Basic applications to boost productivity, such as a Wi-Fi connectivity app.
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- Run Tactility apps on PC to speed up development.
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Requirements:
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- ESP32 (any?) with a display that has touch capability
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- [esp-idf 5.1.2](https://docs.espressif.com/projects/esp-idf/en/v5.1.2/esp32/get-started/index.html) or a newer v5.1.x
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## Making apps is easy!
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Apps are described in "manifest". The manifest provides some basic information on
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the app name and icon, but also tells Tactility what needs to happen when the app runs.
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UI is created with [lvgl](https://github.com/lvgl/lvgl) which has lots of [widgets](https://docs.lvgl.io/8.3/widgets/index.html)!
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Creating a touch-capable UI is [easy](https://docs.lvgl.io/8.3/get-started/quick-overview.html) and doesn't require your own render loop!
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```c
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static void app_show(TT_UNUSED App app, lv_obj_t* parent) {
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lv_obj_t* label = lv_label_create(parent);
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lv_label_set_text(label, "Hello, world!");
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
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// Widgets are auto-removed from the parent when the app is closed
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}
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const AppManifest hello_world_app = {
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.id = "helloworld",
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.name = "Hello World",
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.icon = NULL,
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.type = AppTypeUser,
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.on_start = NULL,
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.on_stop = NULL,
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.on_show = &app_show,
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.on_hide = NULL
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};
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```
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This shows as follows:
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## Supported Hardware
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Any ESP32 device with a touch screen should be able to run Tactility,
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because LVGL is set up in a platform-agnostic manner.
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Implementing drivers can take some effort, so Tactility provides support for several devices.
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Predefined configurations are available for:
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| Device | Screen&Touch | SD card | Other |
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|------------------------------------------|--------------|---------|----------|
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| [LilyGo T-Deck][tdeck] | ✅ | ✅ | Keyboard |
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| [Waveshare S3 Touch][waveshare_s3_touch] | ✅ | ⏳ | |
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| Yellow Board 2432S024C (\*) | ✅ | ✅ | |
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- ✅: Capable and implemented
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- ⏳: Capable but not yet implemented
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- ❌: Not capable
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(*) Note: Only the capacitive version is supported. See AliExpress [here][2432s024c_1] and [here][2432s024c_2].
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[tdeck]: https://www.lilygo.cc/products/t-deck
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[waveshare_s3_touch]: https://www.waveshare.com/wiki/ESP32-S3-Touch-LCD-4.3
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[2432s024c_1]: https://www.aliexpress.com/item/1005005902429049.html
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[2432s024c_2]: https://www.aliexpress.com/item/1005005865107357.html
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## Guide
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### Build environment setup
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Ensure you have [esp-idf 5.1.2](https://docs.espressif.com/projects/esp-idf/en/v5.1.2/esp32/get-started/index.html) installed, then select the correct device:
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Copy the `sdkconfig.board.YOUR_BOARD` into `sdkconfig`. Use `sdkconfig.defaults` if you are setting up a custom board.
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### Building firmware
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You can run `idf.py flash monitor`, but there are some helpers available too:
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`./build.sh` - build the ESP-IDF or the PC version of Tactility (*)
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`./build.sh -p /dev/ttyACM0` - optional: you can pass on extra parameters for esp-idf builds
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`./run.sh` - Does `flash` and `monitor` for ESP-IDF and simply builds and starts it for PC
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The build scripts will detect if ESP-IDF is available. They will adapter if you ran `${IDF_PATH}/export.sh`.
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### Development
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Take a look at the [App Lifecycle](docs/app-lifecycle.md).
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Directories explained:
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- `app-esp`: The ESP32 application example
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- `app-sim`: The PC/simulator application example
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- `boards`: Contains ESP modules with drivers
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- `tactility`: The main application platform code ([src/](./tactility/src))
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- `tactility-esp`: ESP-specific application code (e.g. wifi app and service)
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- `tactility-core`: Core functionality regarding threads, stdlib, etc. ([src/](./tactility-core/src))
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- `libs`: Contains a mix of regular libraries and ESP modules
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Until there is proper documentation, here are some pointers:
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## License
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[GNU General Public License Version 3](LICENSE.md)
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