> For the complete documentation index, see [llms.txt](https://wecon.gitbook.io/pistudio-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wecon.gitbook.io/pistudio-manual/6.-object/6.5-display/6.5.2-qr-code.md).

# 6.5.2 QR code

**Introduction**

Similar to the universal QR code, users could scan this object to get the connection or content. But it provides settings content for QR code.

**Description**

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Lup_3URExwDkfqKABSb%2F-LuqXEIUyBfQ3kzwA8Xl%2F-LuqYIZa_pC9d_fsX09W%2Fimage.png?alt=media\&token=1779f7c9-7ea4-4a4f-8380-ecfd324d6a77)

**1) QR set**

**Variable QR:** It is for setting read address, the content of QR code is from this setting address;

**QR String:** It is for set static content for QR code;

✎**Note:**

* HMI machine ID address: HSW10494 \~ HSW10558;
* So if user want to use QR code to display machine ID in project screen, please check \[Variable QR], and set address is HSW10494;