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By uploading a resource, you agree on all of the above conditions. Also, you accept the responsibility to respond to user requests regarding the usage of your resources, to a reasonable extend. Providing proper documentation on the use of the resource can be one of the ways to fulfil that responsibility.

Model backups are the preferred way to post the models you want to share in this repository.

For the Taranis type radios, you can find an explanation on how to create and restore a model here.

For the Horus type radios, it is somewhat more difficult, since OpenTX doesn't support the backup process on the radio itself.

To 'create' a backup on a Horus radio, you first have to determine which file is containing your model. In the Horus model selection screen, select the model which you want to backup. In the lower left corner, a filename is now shown, ending with .bin. Connect your transmitter to a computer, and locate that file in the "Models" directory on your SD-card. Copy that file and give it a useful name (preferably not more then 8 characters befor the .bin).

That is your backup, and the file that you should share as a model backup file on this repository.

To restore a model backup posted on this site, you should follow the reverse procedure. Create a model on your transmitter, and give it the name you want, preferable the name of the backup file you are about to install, but not neccesarily. Then, note the name of the .bin file as it is mentioned on the left bottom part of the model selection screen. Now, last step, connect your transmitter to the computer, and copy the backup model that you want to restore to the "models" folder on the SD-card on the transmitter. Then, delete the .bin file that you noted was mentioned in the model selection screen, and make a copy of the backup file you want to restore, and rename that to the name of the .bin you just deleted.

Model backups need to be of the .BIN format.


See also on youtube.

Widgets are organised on the radio by sub-folders in the /WIDGETS folder. The name of the sub-folder is irrelevant, but must be less then 8 characters. If the folder name is longer, the widget will work, but the settings won't get stored permanently.

Within the sub-folder, OpenTX expects a lua script named 'main.lua'.

In order to minimise the chance of conflicts with people posting Widgets with the same sub-folder name, widgets are preferable uploaded by only uploading the 'main.lua'. It is up to the user to create a subfolder in the /WIDGETS folder, and put the download Widget-script in there.

Only if more then one file is neccesary to make the Widget work, is it adviced to upload a zipfile. In that case, it is prefered to have all content from WITHIN the subfolder zipped in a zipfile with any name. In this way, the file can be unzipped by using the 'unzip here' command in windows, creating a subfolder with the proper content that can in it's entirety be copied to the /WIDGETS folder on the SD-card, and renamed if neccesary.

Telemetry scripts are organised on the radio in the /SCRIPTS/'Modelname' folder (OpenTX 2.0) or the /SCRIPTS/TELEMETRY folder. The name of the script must be telem1.lua-telem7.lua for OpenTX 2.0, or any name.lua less then 6 characters for newer OpenTX versions. On versions higher than OpenTX 2.0, the script has to be selected as output page in the telemetry setup in the radio lenu.

To start a telemetry script, you need to long press PAGE.

Most well-written telemetry scripts can run as a One-time script as well. Just use the SDcard browser to locate the file, and long press ENTER to execute it.

If your radio type is not listed in the compatibility list for the item you would like to use, you have several options:

  • contact the author of the script.
    • his email is shown when clicking on the icon in the right upper corner, showing the authors username
  • post a comment on the product asking for a compatible version
    • when you log in you can comment on products
  • create a compatible version using companion (model setups only)
    • Using Companion software, you can convert models yourself.


Model conversion using Companion:

  • download the companion for the OpenTX version that the model backup file is compatible with
  • download the SD-card content for that OpenTX version
  • point the Companion to the SDcard content you downloaded (settings)
  • copy the model backup file you downloaded here to the model(s) directory
  • start Companion, select the radio type that the model backup file is compatible with, create a new radio file
  • start the simulator, and restore the model backup file
  • before stopping the simulator, create a radio backup file which will include the restored model
  • start Companion for the OpenTX version you want to convert to, select the radio type that the model backup file is compatible with, create a new radio file
  • open the radio backup file, it will get automatically converted
  • if wanted, change the radio type. the model setup will get automatically converted
  • check all switch assignments and telemetry setup
  • start the simulator, and create a model backup file

Unfortunatly, OpenTX is not very user friendly for 'single model exchange' functionality.