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libraries/lvgl/docs/libs/qrcode.rst

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+.. _qrcode:
+
+=======
+QR code
+=======
+
+QR code generation with LVGL. Uses
+`QR-Code-generator <https://github.com/nayuki/QR-Code-generator>`__ by
+`nayuki <https://github.com/nayuki>`__.
+
+.. _qrcode_usage:
+
+Usage
+-----
+
+Enable :c:macro:`LV_USE_QRCODE` in ``lv_conf.h``.
+
+Use :cpp:func:`lv_qrcode_create` to create a qrcode object, and use
+:cpp:func:`lv_qrcode_update` to generate a QR code.
+
+If you need to re-modify the size and color, use
+:cpp:func:`lv_qrcode_set_size` and :cpp:func:`lv_qrcode_set_dark_color` or 
+:cpp:func:`lv_qrcode_set_light_color`, and
+call :cpp:func:`lv_qrcode_update` again to regenerate the QR code.
+
+Notes
+-----
+
+-  QR codes with less data are smaller, but they scaled by an integer
+   number to best fit to the given size.
+
+.. _qrcode_example:
+
+Example
+-------
+
+.. include:: ../examples/libs/qrcode/index.rst
+
+.. _qrcode_api:
+
+API
+---
+
+:ref:`qrcodegen`
+