# Device Simulator Web app

Our KPN Things **Device Simulator  Web app** allows you to test KPN Things with your own mobile phone/laptop as a device. If you do not yet have a suitable device, you can use the Web app to still build a working data flow.

### Features

* **Mobile/laptop as a device** - Easily add the Web app as a Device in your KPN Things account.
* **Choose sensors** - The app allows you to choose which metrics to use as Device data. 

<figure><img src="/files/Sdf7TtqXj9scwQf7dOdZ" alt=""><figcaption><p>Device simulator app features</p></figcaption></figure>

## Add the Device Simulator Web app

Follow the steps to add the Device Simulator Web app as a device.

{% stepper %}
{% step %}

### Register your Web app in KPN Things

On your computer go to the KPN Things portal.

1. Click on **Devices** to show the device overview on the **Things Manager** tab
2. Click on **Add new Device** to add the Device Simulator

<figure><img src="/files/7I53wUZVM550AhnE4Kvq" alt=""><figcaption></figcaption></figure>

3. Click on **Device Simulator Web app**
4. Give your device a recognizable **name**
5. You can add a **description**, this is useful when you have multiple devices and want to provide context. This is not a mandatory field.
6. Click **Add Device** to finish this step

<div align="left"><figure><img src="/files/UOadErBn1u15hgV6oAaH" alt=""><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}

### Open the Device Simulator Web app

You can open the Device Simulator Web app in three ways:&#x20;

1. In your internetbrowser on your computer or laptop
2. On your phone with the QR code
3. Share the URL and open the Device Simulator Web app

<figure><img src="/files/9Q0gMMYiEdAar0BrpGtt" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Send your first measurement

Select which measurements you want to be send.

1. Click the corresponding **checkboxes** by selecting or deselecting to choose measurements
2. Click **Send data now** to send your first measurement

<figure><img src="/files/UQAPpW38jXyHiVOBNsxe" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Check the incoming message

In KPN Things portal refresh the page. You now see a value next to Last message, indicating that the measurement is recieved from your Device simulator app.

<figure><img src="/files/LZHk7iPNaOAasEYcvyR6" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Ready to build your data flow

You are now ready to setup your first data **Flow** in KPN Things.
{% endstep %}
{% endstepper %}

{% content-ref url="/pages/tgUjCO6EqVI9N2sEtZSR" %}
[Configure a flow](/kpn-things/getting-started/tutorials/configure-a-flow.md)
{% endcontent-ref %}

Or connect your own test devices with our other device templates.

{% content-ref url="/pages/XPQYqK7quaahDW35zfkV" %}
[Connect devices](/kpn-things/getting-started/tutorials/connect-devices.md)
{% endcontent-ref %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

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

```
GET https://docs.kpnthings.com/kpn-things/getting-started/quickstart/device-simulator-web-app.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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.