patch 1.8b ^1/12/25

Fluctus Control Center

• Fixing Locate tab’s map not refreshing

Fluctus firmware

• Critical security improvement and fix concerning gyrometer failures in flight

update 1.8 ^2/08/25

Fluctus Control Center

• To avoid confusion: all mentions of “arming” clarified and removed from the Realtime tab, pyro testing without making the flight computer go for launch is now performed by “unlocking” the outputs
• New flight readiness panel in Overview tab, clearly indicating if the flight computer is go for launch and if there’s any warning associated (no config loaded, too low battery voltage, unexpected pyro continuity anomaly, no gps fix, etc.)
• Added a cleaner way to Disarm the flight computer after pyro testing/flight attempt in Realtime tab
• Few UI changes

Fluctus firmware

• Improved immunity to gyrometer hardware failures (could have caused apogee misdetection)
• Sending a warning when the current pyro continuities does not match the expected ones configured in flight rules
• Better auto flight arming condition, now checking if the Fluctus is being oriented at less than 30° of vertical for the first 30 seconds after bootup
• Quick channel reconfiguration command added
• Distinct buzzer beeping alert on both ascent and descent pyro-active flight phases

Fluctus Telemetry mobile app

• Same more intuitive arming and flight readiness indication upgrades as in the Control Center
• Added the ability to quickly reconfigure the channel on which Fluctus is transmitting
• Few UI changes

patch 1.7b ^17/05/25

Fluctus Control Center

• BUGFIX: Configurator rules outmode reading was altered when using counters
• Remote analog inputs reading

Fluctus firmware

• BUGFIX: Inertial navigation was resetting at airstart on certain conditions
• Reenabling barometric backup for launch detection (30m/s)
• Analog inputs sampling range is now between 0 and 1650 millivolts, as per hardware
• Option to send analog input values through telemetry

update 1.7 ^31/01/25

Fluctus Control Center

• Proper telemetry handling of flights above barometer’s range (19480m)

Fluctus firmware

• Compatibility added for the new IMU embedded in latest Fluctus hardware
• Fixing some slight timing issues with inertial navigation apogee detection for flight above 19480m
• Rebuilt auto sanity startup check (testing way more parameters, including GPS)
• Under the hood cleaning and optimization of the gyrometer driver
• Changes made on the sensor illusion feature (still in beta)
• Tweaked accelerometer calibration procedure

Fluctus Telemetry mobile app

• BUGFIX: USB ground station connection sometimes impossible
• UI changes for better scaling on low dpi screen settings
• Ground station version check fixed

Notes:
Firmware 1.7 is required for all Fluctus shipped from now on.

patch 1.6b ^23/01/25

Fluctus Control Center

• Fixing missing UI text font issue
• Fixing telemetry speaker flight statistics sentence at apogee
• Fixing device list sporadic behaviors

update 1.6 ^22/01/25

Fluctus Control Center

• BUGFIX: Overview tab GPS signal lock indicator glitched
• BUGFIX: Application sometimes crashes when using the realtime data plotting
• BUGFIX: Proper handling when telemetry logging folder is not allowed
• BUGFIX: Config display messed up in the blackbox viewer
• BUGFIX: BlackBox Viewer 3D map generation was failing on rare edge cases
• Updated expiring map API key
• Quick ground station reconnection menu added
• Better (less annoying) version mismatch error handling
• Super convenient Silicdyne product detection and device list selection added
• Lots of UI tweaks and improvements
• Imperial units option added for basic telemetry, speaker, and blackbox overview data
• Telemetry display interpolation and rebuilt orientation visualizer for ground level indication
• Realtime graphs are now automatically halted at touchdown for instant flight profile review
• Rocket distance from launch pad added to Locate tab
• More appropriate telemetry data unit scaling
• Tower tilt angle is now logged and shown post-flight in the blackbox viewer
• Improved telemetry speaker (less stuttering, details touchdown sentence, etc.)
• Better radio communication error handling (silent parsing error handling)
• Safer firmware updater (products IDs are better checked to ensure compatibility)
• Application window don’t reduce anymore after clicking in a dialog box
• Compliance with every back-end changes made on Fluctus firmware
• Rebuilt in-app channel scanner interface (still in early stages)
• Exit G.S. connection buttons added

Fluctus firmware

• BUGFIX: Premature pyro firing with arm on bootup when using long duration fire setting (> 5s)
• Completely redesigned barometric vertical speed measurement system – much smarter and cleaner estimate
• Flight timer now running during configured countdown, holding at zero while waiting for launch, and incrementing again at liftoff
• Maximum angle variable now only look for the maximum reached over the last second of flight (avoid staging abort due to oscillations at tower exit)
• Fluctus now measures and send orientation relative to world’s ground, before and after flight (useful for launch tower adjustment)
• GPS configuration tweaked for better in flight 3D tracking
• New UART telemetry data output feature on GPO4
• Runcam Split 4 compatibility added (power button press emulation)
• GPS altitude is now logged and some optimizations made on other blackbox flight values
• Better roll-rate measurement filtering
• Radio transmission specs revised for better FCC and CE compliance:
  • For the US915 band: channel 0 (A) is on 902.500 Mhz and channel 25 (Z) is at 927.500 Mhz (1.000 Mhz increment), now using 500 khz bandwidth
  • For the EU868-P band: now there’s only 2 channels (A and B) which uses 125khz bandwidth on 869.4625 Mhz and 869.5875 Mhz respectively
• More reliable checksum radio packet verification (now on 2 bytes)
• Rotating auxiliary messages added to reduce total radio packet size
• Slightly increased telemetry rate
• Less sensitive (more reliable) mounting error detection and correction
• Each rule output can now control independent servo angles (out-val)
• Rule counters can now be set to a specific value (out-val)
• More optimized on-board screen handling and general performance improvements under the hood
• Main tick frequency increased from 40 to 50hz
• Launch detection accel threshold tuned to 4G, baro threshold tuned to 30m/s
• Inertial (dead-reckoning) apogee detection delay tuned to 5% of total ascent duration
• Touchdown detection tuned for better reactivity
• Dead reckoning estimates now correctly ignored after apogee
• Better sensor measure fault handling improving overall reliability
• Now skipping gyrometer integration for one tick after launch detection (avoid a bit of origin shifting due to the long sampling blackout at launch)
• Embedded UI tweaks and improvements
• Pyro handling system fully revised
• GPO4 more safely locked when using runcam or telemetry output options
• Proper product identification

Fluctus Telemetry mobile app

• Added ability to automatically log incoming radio packets in csv files
• Imperial units option added for telemetry and speaker
• Many UI improvements
• Fixed map loading and distance to rocket issue on iOS
• Improved telemetry speaker with added flight statistics sentences
• Added RunCam camera control buttons and rule command control
• Improved error handling and overall reliability, compliance with all Fluctus firmware and FCC changes related to 1.6

update 1.5 ^20/09/24

Fluctus Control Center

• Added support for Europe 868Mhz frequency band
• Proximity channel scanning (experimental)
• Fluctus ID displayed in Live telemetry UI header
• Remembering last channel spec selection
• Logging all incoming packets by default

Fluctus firmware

• Automatic channel switching (increment) on bootup if the current one is already occupied
• Reorganized and optimized radio packet
• Displaying UID on power up
• Better radio reception handling
• Added support for Europe 868Mhz frequency band
• Default channel switched to Alpha
• Default pyro firing time set to 0.5 seconds
• Faster bootup
• inFreefall now false after apogee

patch 1.4b ^05/09/24

Fluctus Control Center

• BUGFIX: USB not refreshing correctly after idling for too long

update 1.4 ^13/08/24

Fluctus Control Center

• Added support for the new Steady communication protocol
• Minor UI tweaking (main commands buttons)

Fluctus firmware

• Recognition for Steady radio call sign
• Added support for new bootloader
• Radio receive gain boosted

update 1.3 ^24/03/24

Fluctus Control Center

• Major UI changes, finally with scalable windows
• Integrated rules logic examples (dual deploy, staging…)
• Blackbox viewer motor’s thrust characterisation tool
• Blackbox viewer rocket’s aero drag coefficient calculation tool
• Ground station’s received radio packets logging
• Telemetry speaker enhanced
• Intervals added for flight data csv export
• Pre-loaded defaults in configurator
• HiCont panel removed
• Blackbox viewer touchdown speed estimation revised

Fluctus firmware

• BUGFIX: shifted blackbox rule flag index
• Better barometric speed measurement using FIR filtering
• More consistent apogee detection from flight to flight
• RunCam™ camera remote control feature
• More reliable touchdown detection
• Undervoltage lockout at power-up removed
• Non-detailled blackbox mode removed

patch 1.2b ^28/01/24

Fluctus Control Center

• BUGFIX: DPI scaling problem with some Windows installations

update 1.2 ^06/01/24

Fluctus Control Center

• Product call sign handling
• Better error handling

Fluctus firmware

• BUGFIX: Touchdown sometimes detected after apogee when flying over the barometer range
• Radio product call sign
• Slightly revised flight sequencer’s flags
• Blackbox now log the instantaneous non-filtered battery input voltage