43 lines
1012 B
Markdown
43 lines
1012 B
Markdown
```eval_rst
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.. include:: /header.rst
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:github_url: |github_link_base|/libs/qrcode.md
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```
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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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## Get started
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- Download or clone this repository
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- [Download](https://github.com/lvgl/lv_lib_qrcode.git) from GitHub
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- Clone: git clone https://github.com/lvgl/lv_lib_qrcode.git
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- Include the library: `#include "lv_lib_qrcode/lv_qrcode.h"`
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- Test with the following code:
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```c
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const char * data = "Hello world";
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/*Create a 100x100 QR code*/
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lv_obj_t * qr = lv_qrcode_create(lv_scr_act(), 100, lv_color_hex3(0x33f), lv_color_hex3(0xeef));
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/*Set data*/
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lv_qrcode_update(qr, data, strlen(data));
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```
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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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