# Bluetooth

Choose the mode for the Bluetooth module that is built into the board. The options are:

### Disabled

The board will not use the Bluetooth module.

### FrSky - Wireless Transmitter (Head)

![Bluetooth Tab](https://3767854731-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Md5nSb70RWQSfl1nJPs%2F-Md63F9e3fOx9oeN78TL%2F-Md64NJzaJIH4APfpIF8%2Fimage.png?alt=media\&token=18550782-0311-4597-b445-435165919298)

This mode puts Bluetooth into the transmit mode and it is usually set on the board that is attached to your head. It will send the first 8 channels selected to the Receiver board. The receiver can be another Nano33 BLE board or a Frsky compatible Bluetooth module.

### FrSky - Wireless Receiver (Remote)

![](https://3767854731-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Md5nSb70RWQSfl1nJPs%2F-Md63F9e3fOx9oeN78TL%2F-Md65NVEFqJpaBPiuIEh%2Fimage.png?alt=media\&token=3b1d88d3-0382-4a6b-887c-172ed42d34be)

Wireless receiver mode is used for the bridged method, [Option 3](https://headtracker.gitbook.io/head-tracker/getting-started/wiring/option-3-bridged). It acts like a FrSky Radio. 

When in this mode you will have an extra drop down Remote Connection. The drop down choices will show the valid Bluetooth addresses that were scanned. 

When set to First Available device it will connect to the first Head board it finds. If you pick an address from the list it will only connect to that address. The addresses will show up in the list as they are discovered. 

{% hint style="warning" %}
When setup as a receiver board you will want to leave all channels on this board set to **OFF**. This way the Bluetooth data from the head board will pass through to your radio.
{% endhint %}

{% hint style="info" %}
You can enable the Tilt and Pan on the receiver to use be able to tilt and roll your radio as additional inputs. Be sure the channels you pick here don't overlap the ones set on the Head board.
{% endhint %}

**To see received Bluetooth channels use the Channel Viewer under the Bluetooth tab**

### FrSky - Wireless Receiver - Scanner Mode

![](https://3767854731-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Md5nSb70RWQSfl1nJPs%2F-Md63F9e3fOx9oeN78TL%2F-Md66pzE5vsUpUrGJBso%2Fimage.png?alt=media\&token=77cda5f8-ee14-431f-bddc-e7210b367055)

If you have more than one transmitting head board around, it will automatically try to connect to the first before you can discover the others. Temporarily set this mode so it can discover all the head boards nearby without connecting to any of them. After discovery choose the one you want and set the mode back to Remote.


---

# 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://headtracker.gitbook.io/head-tracker/settings/gui-settings/bluetooth.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.