You got a good attitude right there.

New Tools

• OrientationEstimator uses a Madgwick-based orientation filter to combine gyroscope, acclerometer, and magnetometer data to estimate the orientation of the rocket relative to the Earth's surface. During flight, it switches to gyroscope-only updates. The data stream labels of ROLL, PITCH, and YAW were added and connected to our ground station orientation visualizer.

Tool Updates

• The timing of when sectors are erased for DataSaverSPI has been adjusted to occur one page earlier, so that while the buffer is being filled, the next sector is being erased, rather than the sector erase blocking a buffer flush. This eliminates a 50 ms loop time spike that would occur every few seconds on MARTHA 1.4.
• PROBE_TEMPERATURE is added as a data name to DataNames.h for logging the IREC 2026 payload. The name is intentionally generic, so any future external temperature probes can reuse it.
• SensorDataHandler now uses >= to check if enough time has elapsed to save another instance of the data. For example, if a new altitude sample arrives exactly 10 ms after the previous one, and the minimum interval is configured to 10 ms, it will now save the altitude sample instead of waiting for the next one. This was previously causing our altimeter data to be saved only at 20 ms intervals rather than the desired 10 ms.

PR Log

• Fix/erase sector timing by @Elan456 in #92
• On-board Ahrs (orientation estimator) by @Jshepherd06 in #93
• Add PROBE_TEMPERATURE to DataNames.h by @Elan456 in #100

Release Name Significance

“You got a good attitude right there.” comes from the Apollo 11 transcript. Neil Armstrong and Buzz Aldrin were on the lunar surface, while Michael Collins was orbiting in the command module, communicating with Capcom about the command module's desired attitude.

Full Changelog: v0.6.0...v0.7.0

Uplink complete. The computer’s yours.

Major Organizational Changes

• The Native repo has been deprecated because all tests have been moved into Avionics itself
• Aggressive warning flags have been added to the platformio.ini to force better code quality
• A template for creating flight computer software that uses the Avionics repo has been made at Flight-Computer-Template, thanks to @Mayday-01

Tool Updates

• VVE handles duplicate timestamps by skipping rather than using a minimum dt, which was causing underestimating apogee predictions
• Telemetry and the CommandHandler work together to allow for a remote shell where commands can be sent over the radio interface via initalizing with a ccc entry sequence to pause telemetry streaming and redirect the CommandHandler to the UART port being used for the radio
• The BaseStateMachine now has callback functionality, so the flight computer can register functions to be called when the state machine enters a specific state. This makes it easier to setup "on launch" and "on apogee" event triggers.

PR Log

• fix: return carriage handling by @Elan456 in #83
• March 7th Flight Test Documentation by @Elan456 in #85
• Remote shell by @Elan456 in #86
• Fix VVE duplicate timestamp handling @LoganRundle-1 in #87
• Move tests from Native into Avionics by @Elan456 in #88
• Variable Names Refactor by @Elan456 in #89
• Add lots of warning build flags and address all warnings by @Elan456 in #90
• State Machine callbacks by @Elan456 in #91

Release Name Significance

“Uplink complete. The computer’s yours.” comes from the Apollo 11 transcript, when Houston finishes sending guidance data to the onboard computer and then returns control to the astronauts. It mirrors how the remote shell takes control over the flight computer's telemetry system for remotely inputting commands before resuming normal operations.

Full Changelog: v0.5.0...v0.6.0

Go for Launch

Summary

The focus of this new release is everything that happens prior to launch. It starts with GitHub workflows, ensuring fewer bugs make it into main, and continues with an auto-updating documentation website that helps new contributors understand how each tool works. Once the flight computer is plugged in, the new FastLaunchDetector provides low-latency “soft launch” detection while the new GroundLevelEstimator continuously updates the ground-level altitude all the way up until launch. PowerManagement monitors the flight computer’s battery voltage so we know how much longer we can realistically sit on the pad, and lets us quickly attribute unstable behavior or full shutdowns to dying batteries instead of software. Additionally, adding packet numbers to the header of each radio packet lets us evaluate the signal integrity of our telemetry and ensure the connection is strong before launch. With all of these systems in place, we can much more confidently say we are Go for Launch.

New Tools

• FastLaunchDetector @Jshepherd06
• PowerManagement @Jshepherd06
• GroundLevelEstimator @jstikel
• Native GitHub Workflow @LoganRundle-1
• Analytic Apogee Predictor @LoganRundle-1
• LIS2MDL simulation @Mayday-01
• Signal Integrity Visualization @sajustu
• Documentation Website via doxygen @Elan456
• Clang-Tidy GitHub Workflow @Elan456

Tool Updates

• Telemetry now sends packet numbers in the header @jstikel
• Soft launch added to standard state machine @Jshepherd06
• Avionics shell simplification and tidy-up @Elan456
• Data injection handshake stability improvements @Elan456
• Removed all dynamic memory from CircularArray @Elan456
• Docstrings added across all tools

PR Log

• docs: add live telem test flight to flight tests doc by @Elan456 in #51
• Infra/test workflow by @LoganRundle-1 in #53
• Initial documentation website by @Elan456 in #64
• Infra/test workflow by @LoganRundle-1 in #65
• Feature/add lis2 mdl support by @Mayday-01 in #63
• feat: Add initial implementation of GLE by @jstikel in #66
• Fix documentation workflow by @Elan456 in #68
• Switched GLE from running average to exponential moving average by @jstikel in #69
• Add a README to all subdirectories by @Elan456 in #70
• Minor documentation adjustments by @Elan456 in #71
• Fastlaunchdetector by @Jshepherd06 in #48
• Clang Tidy Workflow + Telemetry Clean Up by @Elan456 in #72
• docs: add Telemetry.md by @Snapwhiz914 in #73
• feat: update PowerManagement voltage calculation logic by @Jshepherd06 in #74
• feat: improve data injection reliability with 3 byte ack by @Elan456 in #75
• Fix Data saver behavior with FLD by @Jshepherd06 in #76
• Simplify Avionics Shell (UARTCommandHandler) by @Elan456 in #77
• Telemetry by @jstikel in #80
• Feature/apogee predictor by @LoganRundle-1 in #79

New Contributors

• @LoganRundle-1 made their first contribution in #53
• @Mayday-01 made their first contribution in #63
• @jstikel made their first contribution in #66

Full Changelog: v0.4.0...v0.5.0

Acquisition of Signal

Key Events

• First live telemetry on a rocket via a custom PCB

New Tools

• Telemetry sending and packet composition @Snapwhiz914
• Base State Machine @Jshepherd06
• Polynomial apogee prediction @Elan456
• Generic data sources ground station dashboard @jinthejangle
• Orientation visualizer @randymoore44

PR Log

• Docs/irec flights by @Elan456 in #38
• Feature/clang tidy by @Elan456 in #39
• Telemetry by @Snapwhiz914 in #45
• feat: add initial polynomial apogee prediction model + disable pre-co… by @Elan456 in #47
• Basesm by @Jshepherd06 in #46
• Telemetry by @Snapwhiz914 in #49
• fix: have SerialSim hold BaseStateMachine ptr by @Elan456 in #50

New Contributors

• @Snapwhiz914 made their first contribution in #45
• @Jshepherd06 made their first contribution in #46

Full Changelog: v0.3.0...v0.4.0

MECO Confirmed!

Key Events

• First successful burn out detection for use in Active Aero systems
• Software-deployed aero brakes
• Integration of the latest Avionics into the Active Aero software stack
• Check out the new flight test log

New Tools

• Burnout State Machine @mcschoo
• Power Management @reinaj28
• Ground Station Dashboard GUI @jinthejangle
• SPI SD Card Stream Data Saving @Elan456
• Discrete Vertical Velocity Estimator @Elan456
• 1D Apogee Predictor @Elan456

PR Log

• Breakout Vertical Velocity Estimator by @Elan456 in #32
• docs: flash data saving by @Elan456 in #31
• Issue: Launch Predictor by @mcschoo in #34
• Burnout State Machine + Apogee Prediction + VVE Separation by @Elan456 in #35
• Added initial power managment by @reinaj28 in #28
• Add April 2025 flights to flight tests doc by @Elan456 in #36

New Contributors to Avionics

• @mcschoo made their first contribution in #34
• @reinaj28 made their first contribution in #28

Full Changelog: v0.2.0...v0.3.0

We have Apogee!

Key Events

• First ever successful live, on-rocket, apogee detection on March 8th. It worked twice in a row on two different L1 cert rockets on two different MARTHA 1.3 boards (MARTHA B1 and B2)
• First working serial-streamed simulations
• First-ever altitude data collection from a launch from MARTHA.

What's Changed

• Simulation by @mvari1 in #26
• Add Mar 8th launch summary to flight tests README by @Elan456 in #29

B1 Summary	B2 Summary (Parachute)

Full Changelog: v0.1.0...v0.2.0

T-0!

What's Changed

• Feature/sensor data handler by @Stelath in #1
• Add SD card writing by @Elan456 in #2
• SD serial support by @Elan456 in #3
• Feature/arduino hal by @Elan456 in #4
• Starter code for the flash driver by @mvari1 in #7
• Flash Driver Fix by @mvari1 in #9
• Flash by @mvari1 in #11
• M1.1 by @Elan456 in #12
• CC1125 by @mvari1 in #13
• Fix/hal and native comp by @Elan456 in #14
• Add more detail to PR template by @Elan456 in #16
• DataSaverSPI using Adafruit SPIFlash + Mock and Testing improvements by @Elan456 in #15
• Uart cmd handler by @mvari1 in #17
• Allowing passing in any Stream for command line by @Elan456 in #18
• Data Saver SPI Data Dumping + Data Integrity Fixes by @Elan456 in #20
• Readme update by @Elan456 in #21
• Cc1125 mvari by @mvari1 in #22
• Feb 8 by @Elan456 in #24

New Contributors

• @Elan456 made their first contribution in #2
• @mvari1 made their first contribution in #7

Full Changelog: https://github.com/CURocketEngineering/Avionics/commits/v0.1.0

Active-Aero Pre-Renovation Avionics Tag

What's Changed

• Feature/sensor data handler by @Stelath in #1
• Add SD card writing by @Elan456 in #2
• SD serial support by @Elan456 in #3

Full Changelog: https://github.com/CURocketEngineering/Avionics/commits/4-13-AA