> For the complete documentation index, see [llms.txt](https://linemasters-organization.gitbook.io/linemaster-2.4ghz-zephyr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://linemasters-organization.gitbook.io/linemaster-2.4ghz-zephyr/programing/home-screen.md).

# Home screen

The home screen displays basic information about the handle and the currently selected model.

At the top bar, you’ll find:

* **Top left corner:** Status of sound and haptic alerts (enabled or disabled)
* **Top right corner:** Battery status, shown with an icon

Just below the bar, you may see alert messages related to the selected model, such as:

* Model not bound
* Failsafe not set

Next, the **current throttle trim value** is shown.

At the very bottom of the screen, you’ll see the **name of the selected model**. When no model is selected, `**************` will appear as the model name.

<figure><img src="https://2459909962-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FW9fL5Zh8HwfuJD6BOe0P%2Fuploads%2FRDc2jPwlpdfYoTIUlRZ1%2F0629.png?alt=media&amp;token=cdb349c2-ab3e-49d2-ae51-88bb35501036" alt=""><figcaption></figcaption></figure>

### Throttle Trim

The throttle trim is a value between **0% and 100%**, defining how much throttle is applied when the trigger is fully released.

* By default, it’s set to **0%** and automatically resets when the device is turned off/on or when switching models.
* You can adjust the trim using the `←` and `→` buttons on the navigation cursor.
* Each time you change the value, a beep will sound.
* Reaching the minimum or maximum limit triggers a **double beep with vibration**.

{% embed url="<https://www.youtube.com/watch?v=v993nPpFCjA>" %}

{% hint style="info" %}
Adjusting the throttle trim allows you to set a constant minimum speed for the model without needing to hold the trigger down. This can be useful in specific flight phases—such as preventing stalls by maintaining a guaranteed minimum speed.
{% endhint %}