# Example Projects

{% hint style="success" %}
**Good to know**

All example projects from Workers 4.0 have been re-developed and now use the new Workers 5.0 API VIs in-place of the Workers 4.0 generic messaging API.
{% endhint %}

### DMM HAL Demo Project (new)

This new example project demonstrates how to use the Public API of a Worker base class as an API abstraction for three Workers that inherit from it. This project was created using the new Public API Builder tool in Workers 5.0.

You can learn more about the Workers example projects in the section: [Example projects](/getting-started/example-projects.md).

<figure><img src="/files/gk4p44oiTdvY2zkAq3uO" alt=""><figcaption><p>DMM HAL demo project in Workers 5.0 (user interface front panel)</p></figcaption></figure>

<figure><img src="/files/ujScofgnQQZgFCnZlIHF" alt=""><figcaption><p>DMM HAL demo project in Workers 5.0 (user interface block diagram)</p></figcaption></figure>


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.