> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-communications/bluetooth-start-device-discovery.md).

# Bluetooth Start Device Discovery

Starts the discovery of Bluetooth devices.

Action available for the following operating systems:

![](/files/-MGNsZjeYMKt8-HvBB5n)

### Parameters

**Targets**

* **MAC Address** *\<unquoted string> -* The control or variable where the MAC Address of the discovered device will be stored.
* **Name** *\<unquoted string> -* The control or variable where the name of the discovered device will be stored.
* **PairingState** *\<numeric> - T*he control or variable where the pairing state of the discovered device will be stored. It can be:
  * 0 - Not Paired
  * 1 - Paired

{% hint style="info" %}
This action starts the discovery process. When a Bluetooth device is discovered the event **Bluetooth Device Found** will be executed on the top form.
{% endhint %}

{% hint style="info" %}
When the discovery process is finished the event **Bluetooth Discovery Finished** will be executed on the top form.
{% endhint %}

{% hint style="info" %}
On Win32 clients, the process is actually synchronous. So this call will be a blocking call and for each device found the event **Bluetooth Device Found** will be executed and at the end the event **Bluetooth Discovery Finished** will be executed.
{% endhint %}

{% hint style="info" %}
On some Windows CE/Mobile devices this function may not be available. It will depend on the actual Bluetooth drivers of the device.
{% endhint %}