lvgl/docs/libs/qrcode.md

QR code

QR code generation with LVGL. Uses QR-Code-generator by nayuki.

Usage

Enable LV_USE_QRCODE in lv_conf.h.

Use lv_qrcode_create() to create a qrcode object, and use lv_qrcode_update() to generate a QR code.

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.

Notes

• QR codes with less data are smaller, but they scaled by an integer number to best fit to the given size.

Example

.. include:: ../../examples/libs/qrcode/index.rst

API

.. doxygenfile:: lv_qrcode.h
  :project: lvgl