# Use Bluetooth with EdgeTX The support for Bluetooth in EdgeTX is limited to: * Bluetooth Trainer Mode * Bluetooth Telemetry Streaming The following Bluetooth options are **not** supported. * Bluetooth Audio * Wireless file access and transfers * Bluetooth joystick ### Firmware To use Bluetooth, if your radio does not come as standard with a Bluetooth module fitted (thus meaning the Bluetooth option should already be enabled in the firmware) you will need a custom compiled version of EdgeTX that needs to be built with the **BLUETOOTH=YES** CMake flag. You can create customized versions of EdgeTX using the CloudBuild tab on the[ EdgeTX Buddy website](https://buddy.edgetx.org/). Once the correct version of EdgeTX firmware is installed in your radio, the Bluetooth configuration options will be available on the **Hardware** page of **Radio** Settings. ### Hardware The only off-the-shelf Bluetooth modules supported by EdgeTX are: [FrSky Bluetooth Module](https://de.aliexpress.com/item/4001192317700.html?gatewayAdapt=glo2deu) [FrSky ACCESS PARA Wireless Module](https://www.horusrc.com/en/frsky-horus-x10-para-wireless-module.html) You can also create your own Bluetooth module by purchasing an ESP32 development kit and flashing it with the firmware from following project:[ https://btwifimod.gitbook.io/untitled/getting-started/hardware](https://btwifimod.gitbook.io/untitled/getting-started/hardware) ### Telemetry Applications The [INAV Telemetry Viewer app](https://play.google.com/store/apps/details?id=crazydude.com.telemetry) can be used on your Android smartphone to view your telemetry data over bluetooth. ### Other Important Notes: * Bluetooth is only supported on radios that have at least one AUX serial port. * The compile time option **Bluetooth** will reserve one AUX port (on radios with 2 AUX ports, AUX2 is reserved for Bluetooth) and it will NOT be available in the normal user interface for other purposes. * EdgeTX Bluetooth trainer or telemetry has nothing to do with internal or external RF module Bluetooth functionality. * EdgeTX Bluetooth can NOT be used for Bluetooth joystick functionality at the moment. --- # 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://manual.edgetx.org/edgetx-how-to/use-bluetooth-with-edgetx.md?ask= ``` 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.