Color Remote Control Settings

The Radio Settings section contains all options for configuring the radio. At the top of the page, you will see some icons that will take you to different radio settings pages when selected. The default screen for radio settings is the Tools screen.

1. Tools

On the Tools page in radio settings, you can select Lua script-based tools to execute. Lua scripts located in the SD card's Tools folder will be listed here. Selecting a tool will execute it in full-screen mode.
By default, EdgeTX includes several tools. Additional tools can be downloaded and added to the SD card. The following tools are included in the default EdgeTX SD card.

1.1 Model Locator (via RSSI)

The Model Locator tool helps find a lost model based on RSSI (if still available). The widget generates an audio representation (beeper-style) of the lost model's RSSI.
The widget also displays the RSSI in a visible color bar (0-100%).

1.2 Spectrum (INT)

The Spectrum Analyzer tool will display the strength of signals in the 2.4GHz band. It uses the internal MULTI-Module as a 2.4GHz spectrum analyzer.
The display shows frequencies on the 2.4GHz spectrum, from 2400MHz to 2480MHz. The X (horizontal) axis displays frequency (MHz), and the Y (vertical) axis displays relative signal strength.
T: Center frequency of the graph (fixed at 2440MHz)
S: Bandwidth of the graph (fixed at 80MHz)
T: Position of the cursor (vertical line)
Press ENT and scroll left or right to change the T value, which will move the vertical line to highlight a specific frequency.

1.3 Wizard Loader

The Wizard Loader tool:

Aircraft Wizard:

The Wizard Loader tool helps you set up a new model by running a setup wizard for a specific model type. Once a model type is selected, the wizard will guide you through a series of prompts, then configure your selected model based on the information provided.

Important

Note: The wizard does not create a new model, it only configures the currently selected model. You must manually create a new model first, then run the wizard. If you run this wizard on an already configured model, it will overwrite your model settings!

II. SD Card

SD Card screen displays the contents of the SD card, allowing you to browse folders and interact with files within them. All folders contain a README.txt file that describes the file types belonging to that folder.

After selecting a file in a folder, you will see the following options depending on the selected file type:

• Assign Bitmap - Assign the selected image file as the model image for the currently selected model.
• Copy - Copy the selected file.
• Delete - Delete the selected file.
• Execute - Execute Lua script. Used for files ending with .lua.
• Flash [target] - Flash the selected firmware file to the selected target module. For example: Flash bootloader, Flash internal multiprotocol.
• Paste - Paste the copied file.
• Play - Play the selected sound file.
• Rename - Rename the file.
• View Text - View selected .txt, .csv, and .lua files.

The folders listed on the SD card screen are the same as those seen when you connect your transmitter to a computer. Below are the folder names and descriptions for all folders that come with the default EdgeTX SD card.

2.1 FIRMWARE

Place the firmware files you want to flash in this folder. This folder is empty by default (except for the readme.txt file). When selecting a .bin file, you will be able to choose to flash the firmware to a specific module.

Additionally, only firmware files in this location can be seen from the bootloader menu. Selecting a .frsk file will give you the option to "Flash receiver via internal OTA".

2.2 IMAGES

2.2.1 Storage Path

• Place custom model images or splash screen images into the specified folder (default only contains readme.txt).
• After selecting an image, you can use the "Assign Bitmap" option to set it as the image for the current model.

2.2.2 Model Images (for Model Manager Thumbnails)

• Recommended dimensions:
  • 156×92 pixels (Model Manager thumbnails)
  • 192×114 pixels (for Model Info widget, improves clarity when zoomed in)
• Format: .png
• Filename requirements: No more than 9 characters
• Recommendation: For optimal performance, it is not recommended to use higher resolution images.

2.2.3 Splash Screen Images

• Recommended dimensions: Same as the transmitter screen resolution (most color screen transmitters are 480×272 pixels).
• Format: .png
• Filename: Must be splash.png.

2.2.4 Shutdown Screen

• Custom shutdown image: Adding shutdown.png in the IMAGES folder allows you to set the image displayed when the transmitter is powered off.
  

2.3 LOGS

This is the write location for log files configured in Special Function SD Log. These files can be viewed using the View Text option. This folder is empty by default (except for the readme.txt file).

2.4 MODELS

This folder is used to store model files, label information, and pre-flight checklists.

• Model files: Each model corresponds to a model[#].yml, containing all configuration options.
• Label information: Stored in labels.yml.
• Deleted models: Models deleted from the transmitter are moved to the DELETED folder, while remaining models can still be viewed in the Model Selection screen.
• Unused models: Any model files not listed in Models.yml (if used) will be moved to the UNUSED folder.
• Checklist (if Show Checklist is enabled):
  • Model note files are stored in this folder, must be in .txt format, and the name must exactly match the model name (e.g., Mobula6.txt).
  • Content is user-defined.
    

2.5 RADIO

This folder contains the radio.yml file. This file contains all transmitter configuration data. If this file is corrupted or lost, the transmitter will enter Emergency Mode and create a new radio.yml file with default settings.

2.6 SCREENSHOTS

This is the write location for screenshot image files configured in Special Functions Screenshots. This folder is empty by default (except for the readme.txt file).

2.7 SCRIPTS

This folder and its subfolders are where Lua scripts are placed. By default, it contains the following subfolders. You can download additional Lua scripts from https://github.com/EdgeTX/lua-scripts.

• Functions - This is the folder where function Lua scripts that can be activated through Special Function Lua Script are placed. This folder is empty by default (except for the readme.txt file). For more information about function Lua scripts, see: Function Scripts.
• Mixes - This is the folder where Lua mixer scripts are placed. This folder is empty by default (except for the readme.txt file). For more information about mixer Lua scripts, see: Custom Mixer Scripts.
• Tools - Contains Lua scripts available in the Tools screen.
• Wizards - Contains wizard Lua scripts available in the Tools screen.

2.8 SOUNDS

This is the folder where EdgeTX sound packs are placed. Sound packs are language-specific and are related to the Voice Language option in Transmitter Settings. Selecting a sound file in this folder will give you the Play option to play the selected sound file.

Sound packs can be manually downloaded from the following URL: https://github.com/EdgeTX/edgetx-sdcard-sounds/releases. Custom sounds can also be created for use in EdgeTX. To ensure your custom sounds can be played by EdgeTX, make sure they meet the following criteria:

• Filename: 123456.wav (maximum 6 characters plus .wav)
• Sample rate: 32 kHz (or 16 kHz, 8 kHz)
• Bits/sample: 16 (or 8)
• Channels: 1, mono
• Compression encoding: PCM

Important

Note: EdgeTX can correctly display a maximum of 799 sound files in the sound selection dropdown menu. Therefore, the maximum number of files in this folder should not exceed 799.

2.9 TEMPLATES

This is where model template files are stored. By default, it will have the following subfolders:

• PERSONAL - If you save a model as a template, it will be stored here.
• SoarETX - A set of glider templates provided by Jesper Frickmann.
• Wizard - Simple model templates that use Lua wizard scripts to configure models.

2.10 THEMES

This folder contains EdgeTX theme packs. The EdgeTX SD card comes with several theme packs that are automatically installed.

2.11 WIDGETS

This is where widget files are stored. You can add additional widgets to this folder to use with EdgeTX. You can download additional widgets from https://github.com/EdgeTX/lua-scripts.

III. Radio Settings

The Radio Settings screen is where you configure the basic settings for your radio. It includes the following options:
Date - Current date. This date is used for SD card log files.
Time - Current time. This time is used for SD card log files.
Additional Settings Buttons - When selected, these buttons provide additional configuration options for named areas.
Splash Screen - Duration the splash screen is displayed.
Startup Sound - Toggle to enable/disable the startup sound.
Shutdown Delay - Delay between pressing the power button and the radio turning off. Options are: 0s, 1s, 2s, 3s, 4s. It is recommended to set a delay of at least 1s to prevent accidental radio shutdown from unintended button presses.
Owner ID - Custom registration ID for ISRM module users only.
Country Code - Used by certain RF modules to ensure compliance with local RF regulations. Options are America, Japan, Europe.
Voice Language - Language of the voice pack. This setting and the voice pack folder on the SD card must match for sounds to play.
Units - Measurement units. Options are metric or imperial.
PPM Units - Precision level for displaying PPM values. Options are 0.- or 0.0
Switch Delay (sw. mid pos) - Minimum time (in milliseconds) a switch must be in the middle position before a special function is activated. This prevents the middle position of a 3-position switch from being activated when switching from low to high position.
USB Mode - Sets the default action when a USB cable is plugged into the USB data port and the radio is turned on. Options are: Ask, Joystick, Storage, and Serial.
Hats Mode - How the hat switch functions (NV14 & EL18 only).

• Trim Only: The trim hat switch will only be used for adjusting trim values.
• Key Only: The trim hat switch will be used for navigating menu options (as described below)
• Toggle: The trim hat switch function can be dynamically switched between Trim and Key.
  Rotary Encoder Mode - Default is Normal. The Inverted option reverses the direction of the scroll wheel.
  Default Channel Order - Default channel order for new models and trainer screens. Letters represent: A = Aileron (Roll), E = Elevator (Pitch), T = Throttle, R = Rudder (Yaw). Changing this setting does not affect existing models.
  Mode - The stick mode the transmitter will use. Defined by the action performed by the left stick. Options are:
  

IV. Theme

The Theme screen allows you to apply different color themes to your radio transmitter. By default, the EdgeTX SD card comes with the themes shown above. Long-pressing a selected theme will give you the following options:

• Set Active - Sets the selected theme as the active theme.
• Edit - Opens the theme editor to edit the selected theme.
• Copy - Copies the selected theme.
• Delete - Deletes the selected theme.
  Edit Theme screen:
  
  Selecting the Details button will open the Edit Theme Details screen. Here you can edit the theme's name, author, and description.
  
  To edit a theme in the Theme Editor, select a color variable from the list on the left side of the screen. Once selected, the Edit Color screen will be displayed.
  
  Use the color scale on the left side of the screen to select a color. You can switch between RGB and HSV color scales using the button in the top-right corner of the screen.
  Once the desired color is selected, press the theme icon in the top-left corner to return to the Edit Theme screen to select another color variable to edit. When finished, press the theme icon to exit the theme editor and save the changes.

Important

You can find more user-created themes and other theme creation resources here: https://github.com/EdgeTX/themes

V. Global Functions

Global Functions are special functions that apply to all models on the radio. They are configured in exactly the same way as a model's Special Functions, and the same functions are available. For more information on configuring global functions, see the Special Functions section, as they are essentially the same.

VI. Trainer Functions

The Trainer screen in the radio settings is used to configure how the master radio handles signals from the slave radio in trainer mode.

For the four main control inputs (aileron, elevator, throttle, rudder), the following options can be configured (from left to right in each row).

• Mode - How the master radio handles signals from the slave radio.
  • Off - Uses the master radio's stick values - does not use the slave radio's input.
  • Add - Adds the master and slave radio's stick values.
  • Replace - Replaces the master radio's stick values with the slave radio's stick values. (Default)
• Source Channel - The channel on the slave radio that is mapped to the control input.
• Weight - Percentage of the slave radio's stick travel to use. Use negative values to reverse the stick direction.
• Calibrate - Sets the center stick value for the slave radio.
• Multiplier - This value changes the weight for all sticks.

Important

Typically, the master radio's trim is used. Set the slave radio's trim to center.

Important

The master radio is the radio that is bound to the model receiver.

Important

A virtual trainer switch (Tnr) can be selected as a switch to activate special functions or curves. The switch is ON when the trainer link is active.

Seven. Hardware

The Hardware screen is where you configure specific radio hardware settings. It contains the following configuration options:
Battery Voltage Range - Sets the maximum and minimum voltage for the battery voltage meter. This should be set according to the battery type you are using.
Battery Calibration - Set this value to match the transmitter battery voltage.
Check RTC Voltage - When enabled, checks the RTC battery on startup and warns you if the battery voltage is low.
ADC Filter - Enable or disable the ADC filter. This filter can also be enabled/disabled per model in the model settings.

Important

The ADC filter is a filter for proportional channels (sticks, knobs, sliders) that smooths out small rapid movements caused by system electronic noise. Typically, for models with a flight controller, this filter should be disabled.

Silent Mode: When enabled, puts the transmitter into silent mode until a sound needs to be played. This prevents interference noise from high-power TX modules from coming out of the transmitter speaker.

7.1 Internal RF Type

Select the module type for the internal module slot. Options are: Multi, XJT, ISRM, CRSF. When selecting CRSF, you can also select the baud rate. You can read more about baud rates here.

7.2 External RF Sampling Mode

Options are Normal and OneBit. Most users should use the default setting Normal. Only users of X9D+ and X7 radios may want to use OneBit mode.

7.3 Bluetooth

Important

Note: This option is only visible in custom compiled versions of EdgeTX with the Bluetooth flag enabled.

Mode - The mode the Bluetooth module will use. Options are:

• Off
• Telemetry - Used for sending telemetry data via Bluetooth.
• Trainer - Used for Bluetooth trainer mode
  Name - The name that the Bluetooth device will display.
  Settings gear icon - When selected will show:
• PIN Code - The PIN code for the Bluetooth device in the radio (only visible in Telemetry mode)
• Local Address - The identification address of the Bluetooth device in the radio.
• Remote Address - The identification address of the Bluetooth device the radio is connected to.

7.4 Serial Ports

Shows a list of available auxiliary serial ports that can be configured and used. The listed ports are based on the ports available in the specific radio hardware. The ports listed below are only examples and may not exist in your radio.

• AUX1 - The first available auxiliary serial port can be configured with the following options:
  • Telemetry Mirror - The same telemetry data sent to the external module slot is also sent to the serial port.
  • Telemetry Input - Receive telemetry data via the serial port.
  • SBUS Trainer - Connect master and slave radios via the serial port.
  • LUA - Send/receive data to/from Lua scripts.
  • GPS - Receive GPS telemetry data via the serial port.
  • CLI - Send commands to the radio via the command line.
  • External Module - This allows configuring external access modules at runtime rather than through compile options. First, configure the hardware port (only available on AUX1 because AUX2 doesn't have TX DMA)
    
• AUX2 - The second available auxiliary serial port (depending on hardware), with the same options as AUX1 except for External Module
• USB-VCP - Virtual COM Port. This is one of the options provided when connecting the radio to a PC for most radios. Usually set to "CLI" for firmware updates on radios with internal ExpressLRS RF modules.

7.5 Input

Calibration - Used to calibrate your physical radio controls (sticks, knobs, sliders, and 6-position switches). The radio will prompt you to complete the calibration steps.
For your gimbal calibration, use left-to-right and up-down movements, not circular motions! Additionally, use normal pressure at the endpoints. Excessive endpoint pressure will result in gimbal calibration errors. Also, don't forget to calibrate your 6-position switches!

7.6 Axes, Knobs, and Switch Buttons

Selecting one of the axes, knobs, or switch buttons will open the configuration screen. On these screens, you will see all the predefined physical radio controls in EdgeTX.
Here, you can add a 3-character label to the control and change the control type as needed. Additionally, controls listed under the knob screen can also be configured to be reversed.

7.7 Debugging

Analog debug screens:

Switch test screens:

The Debug section allows testing and debugging analog controls and keys.
Analog - These screens will display data from your analog controls (sticks, sliders, knobs, 6-position switches) and the touchscreen on the radio. There are four views - Calibrated Analog, Filtered Raw with Offset, Unfiltered Raw, and Min Max and Range.
Keys - This screen will display the digital data of your keys, switches, trims, and rotary encoders (knobs).

Eight. Version

The Version screen displays information about the currently used EdgeTX version:

• FW - Firmware name
• VERS - Firmware version
• DATE - Firmware compilation date
• TIME - Firmware compilation time
• OPTS - Build options enabled at compile time.
  The complete list of build options can be found here: https://github.com/EdgeTX/edgetx/wiki/Compilation-options
  Module / RX Version screen:
  
  Module / RX Version provides you with information about the activated RX module for the currently selected model.

9. Other Settings

Selecting one of the 6 buttons on the Radio Settings screen will take you to one of the following additional settings screens.
Many of these additional settings are self-explanatory. Only settings that need clarification will be mentioned.

9.1 Sound

Mode - Configure when sounds are played.

• All - Beeps when buttons are pressed and plays sounds when there are alarms or warnings.
• No Keys - Does not beep when buttons are pressed or knobs are turned, but plays sounds when there are alarms or warnings. Also plays sounds triggered by special functions.
• Alarms - Only plays alarm or warning sounds. Also plays sounds triggered by special functions.
• Mute - Does not play beeps or sounds.
  Volume
  The main volume of the radio.
  Wav Volume
  The volume of alarms and warnings, as well as sounds played through the Play Track special function.
  Background Volume
  The volume of background .wav files (music) played through the BGMusic special function.

9.2 Altimeter

Altimeter options
Repeat Zero
Time in milliseconds before the tone repeats.

Important

Note: For the altimeter to work properly, it must be enabled through the Vario special or global function.

9.3 Haptic

Mode - Configure when the radio vibrates.

• All - Vibrates when buttons are pressed and when there are alarms or warnings.
• No Keys - Does not vibrate when buttons are pressed or knobs are turned, but vibrates when there are alarms or warnings.
• Alarms - Only vibrates during alarm or warning sounds.
• Mute - Does not produce vibrations.

9.4 Alarms

Sound Off
If sound mode is set to mute, a 'Alarms Disabled' visual warning is displayed when the transmitter is turned on.
Check RSSI on Power Off
Checks if the receiver is still connected to the radio when attempting to power off. If detected, an audio and visual alarm is issued.

9.5 Backlight

Mode

• Off - Always off.
• Keys - Turns on when buttons are pressed.
• Controls - Turns on when using sticks, switches, and knobs.
• Both - Turns on when using buttons, sticks, switches, and knobs.
• On - Always on.
  Time
  The duration the backlight stays on (in seconds). Minimum value is 5 seconds. Maximum value is 600 seconds.
  Alarms
  The backlight turns on when there are alarms or warnings.

9.6 GPS

Timezone:
The UTC time offset for the radio's location. Can be configured in 15-minute increments.
Adjust RTC
Adjusts the transmitter's real-time clock to match the time determined by GPS.
Coordinate Format
The format of the displayed GPS coordinates.

9.7 Enable Features

The Enable Features section of the radio settings allows you to configure the Global Settings tabs visible in the radio settings and model settings areas of EdgeTX. Configuration settings for the active model will be displayed to the right of the toggle switches. Model configuration will override global configuration.

9.8 Manage Models

Model Quick Select - Affects the manage models screen. Both options require you to first use the scroll wheel or short press to select the desired model.

• When Off: Short press/long press (short press/long press ENTER) on the selected model will display a menu where you can 'Select Model' to set it as active.
• When On: Short press (short press ENTER) on the selected model will activate it immediately. To activate the menu, long press or long press ENTER.
  Label Selection - ' Multiple' or ' Single' (default is Multiple). If Single is selected, only one label can be selected.
  Label Matching - ' Match All' or ' Match Any' (default is Match All). Match All is the current logic - only shows models with all selected labels. Match Any will show models with any selected label.
  Favorite Matching - Only available when Label Matching is set to ' Match Any'. Options are ' Must Match' and ' Optional Match' (default is Must Match). Only applies when 'Favorite' is one of the selected labels.
  If 'Must Match' is selected, only models with Favorite and other selections are shown. If 'Optional Match' is selected, models that match Favorite or any other label are shown.
  ————This article is referenced from the EdgeTX User Manual: https://zkl2333.gitbook.io/edgetx-user-manual/color-radios/radio-settings/radio-setup**