FV-31 Cypher Wiki

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Welcome to the Flex Innovations - FV-31 Cypher Wiki

FV-31 Cypher

Aircraft Info

NOTE: We have confirmed reports of PROBLEMS using the BetaFlight 10.7 configurator (with common pre-4.2.6 firmware). Do NOT use BetaFlight PC Configurator 10.7 or higher with Cypher unless you know you are 4.2.6 or higher!

PLEASE use the 10.6.0 (10.5.1 works with FW 3.5) Configurator as described in the Configuration Tools For BetaFlight section a bit below. Attempting to use 10.7 or higher may cause loss of function and/or USB Comms. Use of the Alternate 'boot pin' Firmware Flash procedure (with a proper Cypher .HEX file) linked at bottom of Firm Ware Update page linked just below to recover function and USB comms.

NOTE: Updating to FW 4.2.6 lifts this restriction and allows the use of Configurator 10.7.0

Firmware Updates

Manuals and Documents

Product Information


CAUTION: You must disconnect all motors and securely restrain your Cypher when making and/or testing configuration changes

Configuration Tools for Betaflight

Use a Configuration Tool to Set the Angle/Six Axis Level aka Calibrate Accelerometer

NOTE: The wing-leveling six-axis mode is named ANGLE MODE in Betaflight lingo.
  • Place your Cypher on a level surface. Check that wings are level. Shim the nosewheel up 2-5mm to set a more positive angle. (The angle relates to trim speed and can be set to taste).
  • Connect to your configuration tool and navigate to the Setup page.
  • With the Cypher level per above, click the Calibrate Accelerometer button.
  • Note the settings are now zeroed out. You are finished. Click Disconnect.

Radio Brand Setup Information NOT In Manual

NOTE: There is additional information below on Telemetry for your consideration.

General FLEXF3 LED Notes

  • BLUE LED
    FLEXF3 Reference Diagram with LED's
    • Solid Blue LED indicates the PCB has power
  • RED LED
    • Solid Red LED indicates the motors are Armed and can run or are running.
    • Flashing RED LED indicates the motors are NOT able to be armed (Not Ready to Arm).
    • Unlit RED LED indicates motors are able to be armed (Ready to Arm).

ARMING/DISARMING, and Troubleshooting ARMING Difficulties

FV-31 Cypher Arming (Default)
Use low throttle then right rudder to arm.
Use low throttle then left rudder to disarm

NOTE:
Cypher is ARMED by commanding stick center, throttle low, then hold right rudder.
Cypher is DISARMED by commanding stick center, throttle low, then hold left rudder.
These commands work at all times in all flight modes... Including when airborne!
ARMING is only allowed when all the proper conditions are met.

  • Click this link to see notes on trouble shooting including a complete list of Prevention Flag Meanings
  • Review notes at link above for Betaflight 3.5
  • Note your Cypher's Arming Disable Flags using the Betaflight Configurator on the Setup page in the Info box at right.
  • Some common (beep code) Examples: (visible by Red LED flash or in configurator)
    • (2) FAILSAFE - Rx signal indicates Failsafe (or rx signal not found)
    • (3) RXLOSS - No valid Rx signal found - Check Tx and Rx on and bound and connected
    • (7/8) THROTTLE - Throttle too high - lower throttle or check that trim is sufficiently low
    • (8/9) ANGLE - Cypher must be level within 25 degrees to arm
    • (13/14) CLI - CLI (Command Line Interface) mode is active - Exit CLI and/or Disconnect configurator. (Disconnect configurator and USB cable and/or Bluetooth)
    • (17/18) MSP - Connected to configurator - Disconnect (Disconnect configurator and USB cable and/or Bluetooth)
    • (20/26) ARM SWITCH - Arm Switch in Unsafe position

(First number for BF3.5, second number for BF4.2.x)

Experimenter and Tech Corner

Betaflight Wiki for reference

  • Click this link for the Betaflight Wiki
  • Note that FV-31 Cypher code is based on Betaflight version 3.5 (Or 4.2.x if latest firmware). It is unique code, and it is not possible to build it with the 'generic source code'. Likewise, Cypher code is unique, and is not expected to work with other vehicles.
  • Note that the FLEXF3 Board/PCBA is hardware specifically developed by Flex Innovations for the FV-31 Cypher.

Enabling Telemetry

Optional Electronic/Configurator Adjustments

Important Power and Accessory Notes



CAUTION: You must disconnect all motors, or securely restrain your Cypher when making and/or testing configuration changes