# Communication over laptop's Bluetooth

**URL:** <https://discourse.processing.org/t/communication-over-laptops-bluetooth/14056>\
**Category:** Processing for Android\
**Created:** [September 18, 2019, 8:33pm UTC](https://discourse.processing.org/t/communication-over-laptops-bluetooth/14056 "2019-09-18T20:33:54Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [November 14, 2020, 7:04pm UTC](https://discourse.processing.org/t/communication-over-laptops-bluetooth/14056/4 "2020-11-14T19:04:32Z")

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Hello,

You can use the [Bluetooth SPP](https://en.wikipedia.org/wiki/List_of_Bluetooth_profiles#Serial_Port_Profile_(SPP)).

I have done this with an app on my phone such as:  
[Bluetooth RGB](https://play.google.com/store/apps/details?id=nextprototypes.bluetoothtRGB&hl=en)

And also with an Arduino + HC05, an app written with [Ketai library](http://ketai.org/) for an Android device (phone and tablet) and across two PCs.

On the W10 PC side find “More Bluetooth Options” and set up a COM port:

 ![image](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/3/38410a0f5c9c2d6fd2e9d64f8705935a73f5385c.png)

You can then use the Processing serial library to communicate over the COM port:

> **[Serial \\ Libraries \\ Processing.org](https://processing.org/reference/libraries/serial/index.html)**

Processing does not know it is serial over Bluetooth, serial over USB or otherwise… it is just serial communication over a COM port.

`:)`

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