> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso/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/kalipso/6.0/documentation/actions/group-communications/serial-flush.md).

# Serial Flush

**Serial Flush**

Flushes the buffers of a specified serial port and causes all buffered data to be sent.

Action available for the following operating systems:

<figure><img src="https://1102213384-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM6Wz3tBjSWbCweZ8NltT%2Fuploads%2FruABjDF2Z7iy255xGivq%2F01_Supported_OS.png?alt=media&amp;token=166f7395-72c9-406f-91f1-e41412516cba" alt="OS Supported: Android, iOS, Win, Win32"><figcaption></figcaption></figure>

## Parameters

* **Serial Port** *\<unquoted string> -* The number of the port to flush. Typically is a Com Port. You can choose from pre-defined Com Ports from Com0 to Com13. It's also possible defined a port dynamically by choosing option *dynamic* for this parameter.