> For the complete documentation index, see [llms.txt](https://btwifimod.gitbook.io/untitled/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://btwifimod.gitbook.io/untitled/esp-bluetooth-wifi-module.md).

# ESP Bluetooth Wifi Module

## Welcome

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This documentation is for using an ESP32 based module inside an OpenTX or EdgeTX radio.\
\
Currently the only available Bluetooth modules available that work with Open/Edge TX are the CC2540 with FrSky firmware this one is known as "Bluetooth Trainer". The newer version which is known as PARA is also available from FrSky. \
\
There are two modes of interfacing. The current AT Command Set and the new Packet Based Interface. Below are features under both modes and their status.

### Git Hub Code Link

{% embed url="<https://github.com/dlktdr/BTWifiModule>" %}

### AT Command Set - Currently OpenTX & EdgeTX Compatible

* [x] Bluetooth Trainer Functionality - Master Mode
* [x] Bluetooth Trainer Functionality - Slave Mode
* [x] Bluetooth Joystick - Wirelessly use radio as a Joystick for your simulator software

  **Note:** This is a separate firmware, since you can't switch on the radio. Setup the radio as Bluetooth/Slave, then connect your PC Game Console, etc. <https://github.com/dlktdr/BTWifiModule/tree/joystick>
* [ ] Bluetooth Telemetry

### Packet Based Interface - New design and Status

Work is being done in this branch - <https://github.com/dlktdr/BTWifiModule/tree/PacketMode>\
And the EdgeTx code to go with it - <https://github.com/dlktdr/edgetx/tree/ESPInterface>

* [x] Bluetooth Joystick
* [ ] Bluetooth Trainer - Master
* [ ] Bluetooth Trainer - Slave
* [ ] Bluetooth Audio Source - Mirror the audio output from the Radio
* [ ] IMU output, use Tilt / Roll as available channels on the radio
* [ ] ESPNow LR Mode for trainer - Longer Range, Reliability.. Maybe
* [ ] Wifi FTP server, Access to SD card - This won't be a high speed interface, mainly for small SD card changes, reading/writing models, updating firmware, upload a photo for your model.
* [ ] Serial port output (mirror) Connection to HM11 or Direct to Serial Class
  * [ ] Telemetry Mirror to BT serial port
  * [ ] Telemetry Mirror to BT HM11
* [ ] MavLink output as a WIfi AP / Station. (Incorporate DroneBridge code Maybe..)

If you see anything in this list that jumps out at you and want to help please do.