31 lines
749 B
Markdown
31 lines
749 B
Markdown
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# QR code
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QR code generation with LVGL. Uses [QR-Code-generator](https://github.com/nayuki/QR-Code-generator) by [nayuki](https://github.com/nayuki).
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## Usage
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Enable `LV_USE_QRCODE` in `lv_conf.h`.
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Use `lv_qrcode_create()` to create a qrcode object, and use `lv_qrcode_update()` to generate a QR code.
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If you need to re-modify the size and color, use `lv_qrcode_set_size()` and `lv_qrcode_set_dark/light_color()`, and call `lv_qrcode_update()` again to regenerate the QR code.
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## Notes
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- QR codes with less data are smaller, but they scaled by an integer number to best fit to the given size.
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## Example
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```eval_rst
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.. include:: ../../examples/libs/qrcode/index.rst
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```
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## API
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```eval_rst
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.. doxygenfile:: lv_qrcode.h
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:project: lvgl
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