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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  • All radios
  • Arm Radios
  • FrSky Radios
  • FrSky Taranis
  • FrSky Horus
  • AVR radios only

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  1. Advanced features

Build Option

PreviousS-PORT flashingNextJoystick emulation

Last updated 4 years ago

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This page list the different options that are availabe for the

All radios

  • ppmus: Displays channel values in microseconds instead of %.

  • nooverridech: No OVERRIDE CHx functions available.

  • faimode: Disables all telemetry except for RSSI and voltage, for compliance with contest regulations.

  • faichoice: Adds a menu entry in the radio general settings to enable FAI mode. Allows you to train on contest day with telemetry, then turn FAI mode on in the menu before the contest to disable telemetry. FAI mode can then not be turned off on the radio again without connecting to a computer to avoid cheating.

Arm Radios

Sky9X, Ar9X, 9XR Pro and all FrSky radios

  • eu: Removes D8 FrSky protocol support which is not legal for use in the EU on radios sold after Jan 1st, 2015

  • multimodule: support

FrSky Radios

  • noheli: Removes the Heli CCPM mixer menu page.

  • nogvars: Disables global variable support and the associated menu page.

  • lua: Support for lua model scripts.

  • luac: Enable Lua compiler

  • bindopt: Enable menu for binding D16 receiver with/without telemetry

    and 9-16ch instead of 1-8ch

  • cli: Instead of joystick emulation, USB connection is Command Line Interface

  • masstorage: Instead of joystick emulation, USB connection is mass storage (as in the Bootloader).

FrSky Taranis

This includes the Tranis X9D, X9D+, X9E and Q X7

  • sqt5font: An alternative display font.

  • internalppm: Support for PPM internal module hack. Only enable if

    you place to replace the internal module with a custom module.

  • horusstick (X9E only): Horus gimbals installed (Hall sensors)

  • shutdownconfirm (X9E only): Confirmation before radio shutdown

  • haptic (X9D only): Haptic module installed

FrSky Horus

For the Horus X12S

  • pcbdev: Use ONLY with first DEV pcb version (Beta Horus)

AVR radios only

Gruvin9x, FlySky 9X and Mega250 radio

  • notemplates: Removes the Templates menu page.

different radios
DIY Multiprotocol TX Module