
Sam Walther developed core avionics features for the masa-umich/Rocket-Avionics repository, focusing on flight autosequence control, sensor integration, and data analytics over six months. He architected and refined state machine logic in C to enable deterministic launch sequencing, robust phase transitions, and safe deployment, integrating timing-based transitions and multi-sensor data for improved reliability. Sam enhanced flight data processing with complementary filters and curve fitting algorithms in C and Python, enabling accurate attitude estimation and post-flight analytics. His work included simulation development and real-time programming, resulting in maintainable, testable code that improved system stability, validation coverage, and operational safety.
March 2026: Monthly summary for masa-umich/Rocket-Avionics focusing on feature delivery and stability improvements. Key work included barometer lockout handling during subsonic-to-supersonic transitions to preserve sensor accuracy and autosequence stability, and the introduction of a synthetic flight simulator with related autosequence bug fixes to expand testing coverage and reliability. These efforts reduce operational risk during high-dynamic flight phases and provide a scalable framework for validation.
March 2026: Monthly summary for masa-umich/Rocket-Avionics focusing on feature delivery and stability improvements. Key work included barometer lockout handling during subsonic-to-supersonic transitions to preserve sensor accuracy and autosequence stability, and the introduction of a synthetic flight simulator with related autosequence bug fixes to expand testing coverage and reliability. These efforts reduce operational risk during high-dynamic flight phases and provide a scalable framework for validation.
February 2026 (2026-02): Delivered focused enhancements to flight autosequence reliability and apogee detection under variable atmospheric conditions for masa-umich/Rocket-Avionics. Highlights include timer-based sequencing improvements, robust temperature handling and state-transition fixes, and a next-gen apogee detection system with improved data handling and pressure management to ensure stable flight phase transitions. These efforts reduce sequencing risk, enable more predictable mission profiles, and lay groundwork for operations in non-standard atmospheres.
February 2026 (2026-02): Delivered focused enhancements to flight autosequence reliability and apogee detection under variable atmospheric conditions for masa-umich/Rocket-Avionics. Highlights include timer-based sequencing improvements, robust temperature handling and state-transition fixes, and a next-gen apogee detection system with improved data handling and pressure management to ensure stable flight phase transitions. These efforts reduce sequencing risk, enable more predictable mission profiles, and lay groundwork for operations in non-standard atmospheres.
Month: 2026-01 — Delivered a Flight Data Analytics feature in masa-umich/Rocket-Avionics that enables altitude and motion metrics curve fitting to derive acceleration, velocity, and altitude after the lockout phase in the flight sequence. This work is captured in commit 0dff4e126bab202db540f9b0cebbee6217ac1c88. Business value includes improved post-lockout telemetry interpretation, faster root-cause analysis, and data-driven decision making for flight safety and performance optimization. No major bugs are reported for this month based on the provided data. Technologies/skills demonstrated include data analytics, curve fitting, telemetry processing, and end-to-end feature delivery in an avionics context.
Month: 2026-01 — Delivered a Flight Data Analytics feature in masa-umich/Rocket-Avionics that enables altitude and motion metrics curve fitting to derive acceleration, velocity, and altitude after the lockout phase in the flight sequence. This work is captured in commit 0dff4e126bab202db540f9b0cebbee6217ac1c88. Business value includes improved post-lockout telemetry interpretation, faster root-cause analysis, and data-driven decision making for flight safety and performance optimization. No major bugs are reported for this month based on the provided data. Technologies/skills demonstrated include data analytics, curve fitting, telemetry processing, and end-to-end feature delivery in an avionics context.
December 2025 monthly summary for masa-umich/Rocket-Avionics focused on delivering higher fidelity flight control and data processing capabilities that enable safer deployment and more reliable flight phase transitions. Key outcomes include: (1) enhanced flight autosequence with ground-state handling and apogee detection, integrating multi-sensor data for robust phase changes and safer deploy; (2) improved attitude estimation through a complementary filter for pitch/roll and streamlining of flight sequence management by removing legacy state machine headers; and (3) a velocity and orientation buffer to better track pitch and yaw during critical flight phases, resulting in improved stability and control. The work integrates sensor fusion, state estimation, and sequence timing improvements to reduce risk, improve data quality for GNC, and accelerate validation cycles.
December 2025 monthly summary for masa-umich/Rocket-Avionics focused on delivering higher fidelity flight control and data processing capabilities that enable safer deployment and more reliable flight phase transitions. Key outcomes include: (1) enhanced flight autosequence with ground-state handling and apogee detection, integrating multi-sensor data for robust phase changes and safer deploy; (2) improved attitude estimation through a complementary filter for pitch/roll and streamlining of flight sequence management by removing legacy state machine headers; and (3) a velocity and orientation buffer to better track pitch and yaw during critical flight phases, resulting in improved stability and control. The work integrates sensor fusion, state estimation, and sequence timing improvements to reduce risk, improve data quality for GNC, and accelerate validation cycles.
Month: 2025-11 — Focused on refactoring the Flight Autosequence State Machine in masa-umich/Rocket-Avionics to improve maintainability and readiness for future flight logic enhancements. The change consolidates transition flow, reduces complexity, and positions the codebase for safer feature work and testing.
Month: 2025-11 — Focused on refactoring the Flight Autosequence State Machine in masa-umich/Rocket-Avionics to improve maintainability and readiness for future flight logic enhancements. The change consolidates transition flow, reduces complexity, and positions the codebase for safer feature work and testing.
Month 2025-10 focused on delivering the Flight Autosequence Control System (FSM and Timing) for the Rocket-Avionics project. The effort established a basic state machine and timing groundwork to enable deterministic launch sequencing, with groundwork for state management and timing-based transitions that improve ignition control and handoff events. No explicit major bugs were reported this month; the emphasis was architectural foundation and setup for future integration.
Month 2025-10 focused on delivering the Flight Autosequence Control System (FSM and Timing) for the Rocket-Avionics project. The effort established a basic state machine and timing groundwork to enable deterministic launch sequencing, with groundwork for state management and timing-based transitions that improve ignition control and handoff events. No explicit major bugs were reported this month; the emphasis was architectural foundation and setup for future integration.

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