# HID

> Symcon documentation · English · generated on 2026-09-26  
> Index: https://www.symcon.de/en/llms.txt

Source: https://www.symcon.de/en/service/documentation/module-reference/i-o-instances/hid/

_Requires Symcon >= 2.0_

The HID (Human Interface Device) opens a USB interface, which is often used for communication between the gateway/ splitter instance and the connected device.

### Integration in IP-Symcon
The device to be controlled must be specified on the configuration page under "Device".
Checking "Open HID device" sets the connection to active after "Apply".
All settings/changes are only saved after "Apply" is clicked.

![Configuration page](https://www.symcon.de/media/pages/service/dokumentation/modulreferenz/io/hid/075319f394-1790424939/io-hid.png)

## HID_SendEvent

Source: https://www.symcon.de/en/service/documentation/module-reference/i-o-instances/hid/hid-sendevent/

`bool HID_SendEvent(int $InstanceID, int $ReportID, string $Text)`

_Requires Symcon >= 2.0_

sends a string to the I/O

**Parameters**

- `$InstanceID` (int): ID of the HID to be updated
- `$ReportID` (int): ID of the ReportID to be sent
- `$Text` (string): The string to be sent

**Returns** (bool): If the command succeeds, it returns __TRUE__, otherwise __FALSE__.

The string to be sent

**Example**

```php
HID_SendEvent(12345, 0, "Any data record"); //Sends the text "Any data record" to the HID with the ID 12345
```