---
title: "qr scanner · RUAL Documentation"
description: "A basic QR code scanner that uses video input"
canonical: https://docs.rual.nl/block-types/Component%20UI/component_qr_scanner
language: en
---

[Cluster](https://docs.rual.nl/cluster)

[Blocks](https://docs.rual.nl/block-types)

[Interfaces](https://docs.rual.nl/interfaces)

[Blueprints](https://docs.rual.nl/blueprints)

[Tutorials](https://docs.rual.nl/tutorials)

[Home automation](https://docs.rual.nl/home-automation)

[Examples](https://docs.rual.nl/examples)

[Reference](https://docs.rual.nl/reference)

[Architecture](https://docs.rual.nl/architecture)

[Troubleshooting](https://docs.rual.nl/troubleshooting)

Other

# qr scanner

This block is part of the [`Component UI`](https://docs.rual.nl/block-types/Component%20UI) group and was last modified in core [`v10.4.28`](https://docs.rual.nl/core-versions/100428).

A basic QR code scanner that uses video input

- On Scan required `inpinfunction`

- One time `condition` If set to true, the qr scan will only call the function one time and then stop the scanning progress

Default `false`

- uicomponent `uicomponent`

A typical wiring for [qr scanner](https://docs.rual.nl/block-types/Component%2520UI/component_qr_scanner): the `uicomponent` out pin feeds [build PDF](https://docs.rual.nl/block-types/files/file_generate_pdf).

[![Studio canvas example for the qr scanner block: typical wiring for qr scanner.](https://docs.rual.nl/canvas-examples/component_qr_scanner.png)](https://docs.rual.nl/canvas-examples/component_qr_scanner.png?v=3)

## Version history

Introduced in [`v10.4.28`](https://docs.rual.nl/core-versions/100428).

- [Back to `Component UI`](https://docs.rual.nl/block-types/Component%20UI): Return to the main group to view all sub-groups

- [Back to `barcode`](https://docs.rual.nl/block-types/Component%20UI?group=barcode): Return to the group to view all blocks within this group

Was this page helpful? [Tell us what to improve](https://docs.rual.nl/support) · RUAL Docs is an integral component of the [RUAL ecosystem](https://rual.nl)