43 lines
1012 B
Markdown
43 lines
1012 B
Markdown
|
```eval_rst
|
||
|
|
.. include:: /header.rst
|
||
|
|
:github_url: |github_link_base|/libs/qrcode.md
|
||
|
|
```
|
||
|
|
|
||
|
|
# QR code
|
||
|
|
|
||
|
|
QR code generation with LVGL. Uses [QR-Code-generator](https://github.com/nayuki/QR-Code-generator) by [nayuki](https://github.com/nayuki).
|
||
|
|
|
||
|
|
## Get started
|
||
|
|
- Download or clone this repository
|
||
|
|
- [Download](https://github.com/lvgl/lv_lib_qrcode.git) from GitHub
|
||
|
|
- Clone: git clone https://github.com/lvgl/lv_lib_qrcode.git
|
||
|
|
- Include the library: `#include "lv_lib_qrcode/lv_qrcode.h"`
|
||
|
|
- Test with the following code:
|
||
|
|
```c
|
||
|
|
const char * data = "Hello world";
|
||
|
|
|
||
|
|
/*Create a 100x100 QR code*/
|
||
|
|
lv_obj_t * qr = lv_qrcode_create(lv_scr_act(), 100, lv_color_hex3(0x33f), lv_color_hex3(0xeef));
|
||
|
|
|
||
|
|
/*Set data*/
|
||
|
|
lv_qrcode_update(qr, data, strlen(data));
|
||
|
|
```
|
||
|
|
|
||
|
|
## Notes
|
||
|
|
- QR codes with less data are smaller, but they scaled by an integer number to best fit to the given size.
|
||
|
|
|
||
|
|
|
||
|
|
## Example
|
||
|
|
```eval_rst
|
||
|
|
|
||
|
|
.. include:: ../../examples/libs/qrcode/index.rst
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
```eval_rst
|
||
|
|
|
||
|
|
.. doxygenfile:: lv_qrcode.h
|
||
|
|
:project: lvgl
|