OpenTX Radio Transmitter Companion/Firmware 2.1.7

OpenTX is open source firmware for RC radio transmitters. The firmware is highly configurable and brings much more features than found in traditional radios. 

Latest OpenTX major version with completely new telemetry handling, safe for general use but please be aware that things may still be added or changed in further revisions.

Download and install Companion and use it to retrieve and transfer the latest OpenTX firmware to your radio.

[Taranis]

- Added Crossfire (inverted serial) protocol on S.PORT pin in the module bay (#2894)
- Added telemetry unit conversions from km/h (#3059)
- LR12 changes: removed option for remote failsafe configuration, added in EU firmware variant, enabled range check in EU mode
- Added support for language-specific chars in model notes

[Lua]

- Enhanced luaGetVersion(): return the radio type (#2947), returns version as numbers (#3095)
- Allow usage of PLUS, MINUS, MENU and ENT(short) and EXIT(short) keys in telemetry scripts (#2469)
- Lua string library added (#3095)
- Fixed: Close any Lua open files when radio powers off (#3062)
- getValue() now also returns pilot position (#2921)
- Added additional Taranis X9E fields
- Lua getFlightMode() function added (#3127, #2921)
- Fixed: Inputs were not exported as Lua fields
- Fixed: some wizard lines were not visible anymore (#3061)
- Lua PREC1 and PREC2 formatting parameters now functioning same as in 2.0 (#3150)

[Sky9x / 9XR-PRO / AR9X]

- Added support for FrSky D with inverted signal for 9XR pro (#3139)

[ARM]

- Fixed: Wrong telemetry unit and precision was used for V2 in logical switches (Taranis not affected) (#3071)
- Received value unit for Air speed sensor set to knots (all FrSky sensors send speed in knots) (#3043)
- Added support for FrSky Powerbox sensor (#2970)
- Fixed Special Function - Adjust GVAR: increment/decrement could cause GVAR value to overflow the allowed range (±1024) (#2917)
- Bad Value for GVAR When Adjusting GVx to Another GVx in Special Functions (#3103)

[All]

- Various texts and translations corrections
- Various small bug-fixes

[Companion]

- Lua 'execute' failed in non-root directory (in Simulator) (#3024)
- LR12 changes: removed option for remote failsafe configuration, added in EU firmware variant
- Added Clear option to the flight mode context menu (right click on the Name label) (#3026)
- New features for Telemetry Simulator: log replay, user friendly sensor values (#3124)
- Added F7 key to reload LUA permanent scripts in radio simulator (#3141)
- AR9X firmware flashing fall-back was wrong
- Command line options support added to standalone simulator (try "./simulator21 --help" on Linux and "simulator.exe /help" on Windows for usage) (#3160)
- Various rounding problem fixed: Telemetry sensor Ratio parameter (#3117), Outputs Sub-trim, Min and Max values (#3156)
- Fixed: telemetry sensors Ratio and Offset value increment/decrement step (#3121)
- Hardware/Calibration tab split int two tabs (#2974)
- Fixed Fahrenheit temperature conversion error (if PREC was not 0) (#3146)
- Application Setting 'Enable automatic backup before writing firmware' was not saved (#3040)
- Fixed RPM package problem on Fedora (#3130)
- Fixed conversion errors when loading 2.0.x EEPE (#3177)
- Various texts and translations corrections

About Device Firmware:

Applying a newer firmware version than the one already installed on your unit can bring various enhancements, include workarounds for diverse problems encountered by the device, and improve or add newly developed features.

On the other hand, downgrading the firmware version can recover the device’s functionality in the event of a software update either turning up faulty or causing the unit’s overall performance to drop. However, bear in mind that applying an older firmware isn’t recommended and might not always be possible.

When it comes to the update steps, due to the large variety of devices and numerous ways for installing a new firmware, it is recommended that you carefully read and understand the upgrade steps, and consider applying a different firmware only when you have familiarized yourself with the update method.

As the installation process is most of the times quite risky, this step should be taken by users that have the ability to successfully complete the update; regular users may initiate it at their own risk. Moreover, it’s best that this task be performed in a steady power environment such as the one ensured by a UPS unit.

Therefore, if you consider applying this release, hit the download button, take into account all the aforementioned aspects, and update the device’s firmware. Also make sure you constantly check with our website to ensure that you don’t miss a single new release.