Manual for OpenTX 2.2
  • Introduction
  • The radio
  • Build Options
  • Companion
    • Basic Concepts
    • Setting up OpenTX Companion
    • Flashing Frsky Radios
  • Software overview
    • Navigation
    • Model Selection
    • Main views
    • Telemetry views
    • Radio menus
      • SD Browser
      • Global Functions
      • Trainer
      • Version
      • Diagnostics
      • Hardware
      • Calibration
    • Model menus
      • Model Setup
      • Heli Setup
      • Flight Modes
      • Inputs
      • Mixer
      • Outputs
      • Curves
      • Global Variables
      • Logical Switches
      • Special Functions
      • Custom Scripts
      • Telemetry
  • First steps
  • Advanced features
    • Flight modes
    • Telemetry Values
    • Audio
    • Global variables
    • Flashing the bootloader
    • Add-ons
    • S-PORT flashing
    • Build Option
    • Joystick emulation
    • Managing Throws
  • SD Card contents
  • Model Setup Examples
    • Standard Four Channel
    • Basic Elevon
    • Flaps - One Servo
  • FAQ
  • Contributors
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  1. Software overview
  2. Model menus

Global Variables

Global variables are values that can be substituted to the usual number on every Weight, Offset, Differential or Expo setting. Their main use is to group the adjustment of several parameters that should have the same value. For example, aileron differential on a glider with 4 surfaces responding to the aileron function. When trying to find the sweet spot for the differential value, instead of having to repeatedly edit the differential value in 4 mixers, all 4 can be set to use a global variable (e.g. GV1 resp. -GV1, selected by a LONG press of the ENTER key on the Differential field). Then adjusting GV1 on this page is all it takes for all differentials to be updated. Global variables are also flight mode specific, so instead of having to create separate mixer lines with different values depending on the flight mode one can simply use a global variable with different values for each flight mode. This can significantly help simplifying the mixer screen by avoiding many duplicate entries. Global variables can also be adjusted in flight thanks to the Adjust GVx Custom Function that will be described later, and help adjusting those parameters that are easier to tweak in flight like D/R ratios, expos or again differential. The Global variables screen allows setting a name for each of the 5 available variables for conveniency, and seeing/setting the value each of them will have in each of the 9 flight modes.

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Last updated 4 years ago

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