About Letus Helix
The Letus Helix app is designed to be a simple and intuitive way of changing settings on the Letus Double Helix, Helix Pro, Standard Helix, and Helix Jr. Many settings from the SimpleBGC GUI (PC/Mac-based configuration...
Version History Minor bug fixes. 1.5.0 07/23/2020 - More profile information is stored in the app. This allows additional features to be accessed now and in future versions. - Firmware version 2.69 is supported by this version. Note that we do not recommend upgrading to this version unless your Helix was shipped with it or you have a specific feature that you need from that firmware version. - Joystick can be calibrated automatically on the RC/joystick page. - Eliminated orientation/calibration screen and moved most important functionality into the System screen - Eliminated Menu Button screen and moved most important functionality into the System screen - Eliminated Set PID values screen, since it has been replaced with the Initial Setup screen - Roll rotation (on Motion Control screen) has been upgraded slightly - Minor bug fixes 1.4.9 07/02/2020 - Added an initial setup wizard, that allows news users to input their camera model and information on accessory locations to come up with initial PID and power settings. - Added a fine tuning screen (based on and accessed through the initial setup wizard) that helps users troubleshoot any remaining issues with PID and power settings. - Added a Show Experimental Features switch (accessible through iOS settings) that allows users to try beta features that are usable, but not fully developed yet. 1.4.8 01/02/2020 - Allows the user to connect to iPhone/iPad on iOS 13. - Support for firmware 2.43 removed. Users currently using firmware 2.43 should upgrade to 2.56. (See http://letus.net/how-do-i-upgrade-my-firmware-to-version-2-56-b2/ for details on how to do this) - Motion analysis screen (beta/experimental) added. This page allows the user to record a short section of motion and then view it on a graph. Data may be sent to Letus and a smoothness rating is given to rate the smoothness of the motion on that axis. - Restore system screen added. This allows the user to store all system settings and calibrations (EEPROM) to the iOS device and restore them at a later date. - Due to iOS 13 limitations, the app no longer checks the name of the Wi-Fi network that it is connected to make sure the user is connected to a Helix instead of another network. 1.4.7 09/19/2019 Updated Set PID Values screen with improved options for encoded Helixes. Bug fix on automatic power setting feature. 1.4.3 05/29/2018 Adds a new tool for automatically setting power for encoded Helixes Improves ability of Set notch filter tool to detect buzzing Updated for use with iPhone X Bug fix Note: Requires at least iOS 9.0 1.4.1 12/07/2017 Added an automatic notch filter setting button to help get rid of buzzing automatically. Added a separate Update Library screen to allow users to only add the Letus-provided profiles that they want. Added a button to allow users to donate their favorite profiles to the Helix community, so that other users will be able to use them in future versions of this app. Got rid of Bind RC Receiver button so that users will use the Menu button screen for binding (much more reliable way to bind Helix and RC radio). Minor bug fixes. Minor improvements to the appearance of app. 1.4.0 08/21/2017 Minor bug fixes associated with the Profile Library screen. 1.3.4 06/01/2017 Allows use of firmware version 2.63 Improved compatibility when using library profiles created in different firmware versions Removal of the Jittery and Buzzing tools (updated recommendations for PID values on Set PID values screen) Various minor bug fixes Greatly improved support for encoded Helixes, including: - System check looks for encoder calibration problems - Roll axis balancing assistant for encoded Helixes. - Ability to e-mail encoded profiles to other encoded Helix users without corruption of encoder calibration - Set PID values screen has new options for encoded Helixes - Library has new default profiles available for encoded Helixes 1.3.3 05/09/2017 Fixes a bug that could cause the app to crash when the Write button is pressed in certain circumstances. 1.3.2 12/16/2016 - Added ability to use the app with firmware versions 2.60 and 2.61 (firmware recommended for Helixes with encoders) - Improved data transfer checking/reliability to eliminate profile corruption with weak Wi-Fi connections. - Minor changes to visual appearance. - Adapted system check to work with new encoded Helixes. - Added time-lapse motion to menu button options for Helixes with firmware version 2.61 or later. 1.3.1 12/05/2016 Ability to e-mail profiles from library and save them to library Added a Status Check page with options for a general system check and RC function check Updated Set PID values page to incorporate use of filters and update PID choices Support for turning encoders on/off and calibrating them (if physically present) Added Bind RC to list of menu functions Removed compatibility with firmware versions 2.41 and 2.42. Improved compatibility in using library profiles from different firmware versions. Set power screen now zeroes out the booster power if set to zero, making the app better for troubleshooting. Several minor bug fixes Minor enhancements to visual appearance 1.3.0 09/08/2016 - Added a switch to turn confirmation beeps on/off - Changed the picker options on the joystick screen to show virtual channels in Klassen/Hurricane Wheel mode - Changed steppers on the orientation/calibration screen to extend their range from -15 to 15 to a new range of -25 to 25. - App now senses if the user is connected to a Double Helix and provides appropriate profiles and PID values, as well as some customization in what tools/screens are available. - Added logic to the app allowing it to distinguish between 2.43 b6 profiles, 2.56 b2 (for Jr. or Std.), and DH profiles based on the firmware version on the Helix and whether the user is connected to a Double Helix. App provides appropriate profiles when the Update library button is pressed in the profile library. - Added profiles for 2.56 b2, including 6 for Jr, 6 for Std, and 5 for the Double Helix (accessible by pressing the Update library button in the profile library) - Bug fixes and improvements in the profile library, connection button reliability, appearance and layout of screens. 1.2.1 01/30/2016 Ability to use firmware version 2.56. Ability to change settings in the iOS settings area for Spectrum satellite and Klassen Wheel use. Ability to bind with new Spektrum satellite receivers from within the app Ability to see control source values in joystick/RC screen with either type of RC receiver Ability to scroll the follow screen on small iPhone screens Addition of Euler angles on follow screen Ability to store extended variables (filters, outer PI, etc.) to the library Ability to add or change basic filters (LPF only) Ability to change axes inside the manual PID adjustment screen. Profile library will convert old profiles from firmware version 2.43 to work with current firmware. Updated documentation/help screens Minor bug fixes 1.2.0 12/10/2015 Bug fixes and added functionality in the follow screen. 1.1.1 07/06/2015 1.1.0 06/30/2015
Previous Versions
Here you can find the changelog of Letus Helix since it was posted on our website on 2023-07-04 10:42:21.
The latest version is 1.5.0 and it was updated on 2026-06-12 00:32:16. See below the changes in each version.
Letus Helix version 1.5.0
Updated At: 2026-06-12
Changes: Version History Minor bug fixes. 1.5.0 07/23/2020 - More profile information is stored in the app. This allows additional features to be accessed now and in future versions.
- Firmware version 2.69 is supported by this version. Note that we do not recommend upgrading to this version unless your Helix was shipped with it or you have a specific feature that you need from that firmware version.
- Joystick can be calibrated automatically on the RC/joystick page.
- Eliminated orientation/calibration screen and moved most important functionality into the System screen
- Eliminated Menu Button screen and moved most important functionality into the System screen
- Eliminated Set PID values screen, since it has been replaced with the Initial Setup screen
- Roll rotation (on Motion Control screen) has been upgraded slightly
- Minor bug fixes 1.4.9 07/02/2020 - Added an initial setup wizard, that allows news users to input their camera model and information on accessory locations to come up with initial PID and power settings.
- Added a fine tuning screen (based on and accessed through the initial setup wizard) that helps users troubleshoot any remaining issues with PID and power settings.
- Added a Show Experimental Features switch (accessible through iOS settings) that allows users to try beta features that are usable, but not fully developed yet. 1.4.8 01/02/2020 - Allows the user to connect to iPhone/iPad on iOS 13.
- Support for firmware 2.43 removed. Users currently using firmware 2.43 should upgrade to 2.56. (See http://letus.net/how-do-i-upgrade-my-firmware-to-version-2-56-b2/ for details on how to do this)
- Motion analysis screen (beta/experimental) added. This page allows the user to record a short section of motion and then view it on a graph. Data may be sent to Letus and a smoothness rating is given to rate the smoothness of the motion on that axis.
- Restore system screen added. This allows the user to store all system settings and calibrations (EEPROM) to the iOS device and restore them at a later date.
- Due to iOS 13 limitations, the app no longer checks the name of the Wi-Fi network that it is connected to make sure the user is connected to a Helix instead of another network. 1.4.7 09/19/2019 Updated Set PID Values screen with improved options for encoded Helixes.
Bug fix on automatic power setting feature. 1.4.3 05/29/2018 Adds a new tool for automatically setting power for encoded Helixes
Improves ability of Set notch filter tool to detect buzzing
Updated for use with iPhone X
Bug fix
Note: Requires at least iOS 9.0 1.4.1 12/07/2017 Added an automatic notch filter setting button to help get rid of buzzing automatically.
Added a separate Update Library screen to allow users to only add the Letus-provided profiles that they want.
Added a button to allow users to donate their favorite profiles to the Helix community, so that other users will be able to use them in future versions of this app.
Got rid of Bind RC Receiver button so that users will use the Menu button screen for binding (much more reliable way to bind Helix and RC radio).
Minor bug fixes.
Minor improvements to the appearance of app. 1.4.0 08/21/2017 Minor bug fixes associated with the Profile Library screen. 1.3.4 06/01/2017 Allows use of firmware version 2.63
Improved compatibility when using library profiles created in different firmware versions
Removal of the Jittery and Buzzing tools (updated recommendations for PID values on Set PID values screen)
Various minor bug fixes
Greatly improved support for encoded Helixes, including:
- System check looks for encoder calibration problems
- Roll axis balancing assistant for encoded Helixes.
- Ability to e-mail encoded profiles to other encoded Helix users without corruption of encoder calibration
- Set PID values screen has new options for encoded Helixes
- Library has new default profiles available for encoded Helixes 1.3.3 05/09/2017 Fixes a bug that could cause the app to crash when the Write button is pressed in certain circumstances. 1.3.2 12/16/2016 - Added ability to use the app with firmware versions 2.60 and 2.61 (firmware recommended for Helixes with encoders)
- Improved data transfer checking/reliability to eliminate profile corruption with weak Wi-Fi connections.
- Minor changes to visual appearance.
- Adapted system check to work with new encoded Helixes.
- Added time-lapse motion to menu button options for Helixes with firmware version 2.61 or later. 1.3.1 12/05/2016 Ability to e-mail profiles from library and save them to library
Added a Status Check page with options for a general system check and RC function check
Updated Set PID values page to incorporate use of filters and update PID choices
Support for turning encoders on/off and calibrating them (if physically present)
Added Bind RC to list of menu functions
Removed compatibility with firmware versions 2.41 and 2.42.
Improved compatibility in using library profiles from different firmware versions.
Set power screen now zeroes out the booster power if set to zero, making the app better for troubleshooting.
Several minor bug fixes
Minor enhancements to visual appearance 1.3.0 09/08/2016 - Added a switch to turn confirmation beeps on/off
- Changed the picker options on the joystick screen to show virtual channels in Klassen/Hurricane Wheel mode
- Changed steppers on the orientation/calibration screen to extend their range from -15 to 15 to a new range of -25 to 25.
- App now senses if the user is connected to a Double Helix and provides appropriate profiles and PID values, as well as some customization in what tools/screens are available.
- Added logic to the app allowing it to distinguish between 2.43 b6 profiles, 2.56 b2 (for Jr. or Std.), and DH profiles based on the firmware version on the Helix and whether the user is connected to a Double Helix. App provides appropriate profiles when the Update library button is pressed in the profile library.
- Added profiles for 2.56 b2, including 6 for Jr, 6 for Std, and 5 for the Double Helix (accessible by pressing the Update library button in the profile library)
- Bug fixes and improvements in the profile library, connection button reliability, appearance and layout of screens. 1.2.1 01/30/2016 Ability to use firmware version 2.56.
Ability to change settings in the iOS settings area for Spectrum satellite and Klassen Wheel use.
Ability to bind with new Spektrum satellite receivers from within the app
Ability to see control source values in joystick/RC screen with either type of RC receiver
Ability to scroll the follow screen on small iPhone screens
Addition of Euler angles on follow screen
Ability to store extended variables (filters, outer PI, etc.) to the library
Ability to add or change basic filters (LPF only)
Ability to change axes inside the manual PID adjustment screen.
Profile library will convert old profiles from firmware version 2.43 to work with current firmware.
Updated documentation/help screens
Minor bug fixes 1.2.0 12/10/2015 Bug fixes and added functionality in the follow screen. 1.1.1 07/06/2015 1.1.0 06/30/2015
Letus Helix version 1.5.0
Updated At: 2020-07-23
Changes: Jul 23, 2020
Version 1.5.0
Minor bug fixes.
Letus Helix version 1.5.0
Updated At: 2020-07-23
Changes: Minor bug fixes.
Disclaimer
Official App Store Link
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