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OpenTX – Beginner’s Guide

What do you do when you first get your Taranis Plus X9D radio?

This guide helps you understand the basics so that you can set up basic models and add further features.

Most of the programming described here is done on the Taranis radio itself. The PC software that can also program your Taranis, called ‘Companion’, will only be described for features which cannot be done on the Taranis, like backing up software and viewing graphs of logged data.

Note that this guide refers to OpenTX version 2.1.

 

The latest documentation (June 2016) for the Taranis radio is at the following location. http://openrcforums.com/forum/viewtopic.php?f=45&t=8724

Download the seven PDF files for the complete set of documentation.

Navigating Around the Screens

For a diagram showing all the screens and how to navigate from one screen to another, refer to the Control Flow Diagram here.

Radio Setup Screen

Select each of the items in the Radio Setup screen and set the required settings. Refer to the Radio Setup screen here.

 

Date

Set the date to the current date.

Time

Set the time to the current time.

Battery Meter Range

If you use the supplied NiMh battery to power the Taranis, the default setting is ‘6.0 – 8.0’ Volts.

If you use a 3S (11.1V nominal) LiPo battery to power the Taranis, set the Battery Meter Range to ‘10.4 – 12.0’ Volts.

Battery Low Alarm

If you use the supplied NiMh battery to power the Taranis, the default setting is ‘6.5’ Volts.

If you use a 3S (11.1V nominal) LiPo battery to power the Taranis, set the Battery Low Alarm voltage to ’10.4’ Volts.

Default Channel Order

The default channel order is used by the model setup wizard. Choose the order you prefer. The default is 1=throttle, 2=aileron, 3=elevator, 4=rudder.

 

 

The other parameters can be left with their default values for now.

Switch Test Screen

 

Check that all the push buttons and trim switches work.

Refer here for more information.

Analog Inputs Screen

 

Check that the stick movements, S1, S2, LS and RS change the analog input value in the range FC00 to 0400. (The numbers are hexadecimal.) If the range of movement is not approximately as expected, go to the Calibration screen and perform a calibration of all the analog inputs.

Refer here for more information

Calibration Screen

 

Calibrate all the analog inputs here if the range of numbers of any of the analog inputs on the Analog Inputs screen is not as expected.

Refer here for more information.

Create a New Plane Model

The simplest way to create a new model is to use the wizard.

Using the Wizard

On the Model Selection screen, select an unused number and press Enter LP from the menu, select ‘Create Model’ and press Enter again. This starts the model creation wizard. For this example, select the plane and press Enter.

 

 

On each page is a question. Use the Enter key to edit the selected answer and the ‘-‘ and ‘+’ keys to select the answer. Press the Enter key to end editing.

 

 

Press the Page key to move to the next page. On the final page, a summary is displayed. For this example, the final screen is shown here.

 

                             

 

Press Enter LP to complete the wizard. The wizard has set up four inputs on the Inputs screen and four channels on the Mixer screen and they are shown here.

 

The input parameters to each Input are the four control sticks.

The input parameters to each Mixer channel are the four variable names shown in the left hand column of the Inputs screen.

 

Some further steps are now required to complete the basic set up of the model. Now go to the Model Setup screen.

Model Setup Screen

(Refer here for information on the Model Setup screen.)

 

Model Name

On the Model Setup screen, fill in the Model Name.

Model Image

Select a Model Image. The model image will be shown on the main screen. (View the images on the SD Card screen in the BMP folder.)

Timers

The timers can be used for a variety of functions. For example, to use a switch to set, run and reset a timer, see application note 2.

Internal RF

Set the Mode to D16 for receivers X4R, X6R, X8R, S6R etc.

Bind the Receiver and Setting Failsafe Conditions

For an example of binding and setting the failsafe conditions, see application note 13.

 

 

The other parameters can be left with their default values for now.

Outputs Screen

Reverse Channels

Move the sticks and check that the control surfaces move the correct direction. If not, on the Outputs screen, invert the output. (Refer here for more information on the Outputs/Servos screen.)

 

This completes the basic setup of a simple plane.

Model Matching

When you bind a model to a receiver, the receiver number on the Model Setup screen is sent to the receiver and retained. If you use the wizard to create each model, the receiver number is set the same as the model number.

However, if you copy (or move or restore) a model, the copy has the same receiver number as the original model. If you then bind the second receiver, it will be given the same receiver number as the model you copied from. This means that both the original model and the copied model will connect to both receivers. You might end up flying an aircraft using the wrong model!

 

 

After copying (or moving or restoring) a model, change the model number in the “Internal RF” section of the Model screen to the new model number before binding to the new plane.

 

 

The moral of the story is ..

 

 

WARNING

 

After copying (or moving or restoring) a model, change the Internal RF receiver number on the Model Setup screen of the copied model to match the model number before binding. This will ensure each receiver has a unique receiver number so that only one model can connect to each receiver.

More Model Features

To add more features to your model, see the application notes here.

 

Phantom Divide

 

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