2025-10 monthly summary for masa-umich repositories (Rocket-Avionics and McNugget). Delivered robust features and reliability improvements across embedded sensor emulation, automation tooling, and security posture, with a strong focus on business value and technical excellence.

September 2025 monthly performance summary: Delivered a foundational platform overhaul across Rocket-Avionics that enables modular firmware development and sets the stage for Lonely Mission deployments. Implemented an interrupt-driven MS5611 sensor emulation for SEB, refactoring sensor interactions to use SPI interrupts and cleaning up UART/SPI configurations for improved responsiveness. Automated hardware instrumentation and data-acquisition workflow in McNugget, including a new Python script to configure analog/digital tasks, read instrumentation sheets, and handle PTs, VLVs, and TCs with robust error handling. Added automated channel creation and configuration with UX and connectivity improvements, enabling reliable channel setup in Synnax, safer hostname resolution, and clearer status feedback through colorized console output. These changes collectively enhance maintainability, reduce setup time, and improve data quality for mission-critical operations.

June 2025 performance summary for masa-umich/Rocket-Avionics. Focused on delivering core flight software interfaces and robust sensor emulation with tangible business value. Key features delivered: - MS5611 Sensor Emulation: Implemented a dedicated C emulation file with command definitions and fixed PROM values; updated firmware to remove unused SPI CS definitions, invoked the emulation loop, and adjusted SPI NSS handling to improve stability. - Flight Computer TCP Server (Limewire Interface): Delivered a central TCP server for the Limewire flight computer interface, including setup instructions, example usage, and refactored listener/reader/writer threads; added Raw_message structure and messaging helpers to streamline communications. Major bugs fixed: - Removed unused SPI chip select definitions and corrected NSS handling to resolve SPI-related inconsistencies in the emulation path. - Improved stability of the sensor emulation loop and clarified control flow during startup sequences to reduce boot-time failures. - Refactored and modularized TCP server threading model (listener/reader/writer) to mitigate race conditions and simplify maintenance. Overall impact and accomplishments: - Established a centralized, testable flight computer interface for Limewire, accelerating integration, QA, and dataflow debugging. - Delivered robust sensor emulation that better supports ground truth testing and system validation with clearer firmware behavior. - Improved code maintainability and testability through refactors and clean interface boundaries. Technologies/skills demonstrated: - C firmware development, embedded sensor emulation, and fixed PROM handling - TCP server design, multithreading (listener/reader/writer), and messaging helpers - Raw_message structures and messaging patterns, improved setup/documentation for onboarding

In April 2025, focused on boosting testability, hardware integration, and reliability for masa-umich/Rocket-Avionics. Delivered Python-based serial data logging tooling and a serial port simulator, consolidated tooling by removing legacy scripts, and established a robust testing workflow. Implemented MS5611 barometer driver with variable-length SPI handling and updated the simulator to generate valid dummy responses for end-to-end testing. Integrated W25N01GV/W25N04KV flash memory drivers and LSM6DSO32XTR IMU, with updates to the simulator and main flight software to utilize the new drivers. Addressed SPI reliability by validating chip select before processing data and added a non-blocking serial port timeout in the simulator to support keyboard interrupts. Corrected an over-aggressive timer subsystem by removing STM32F0xx HAL Timer and Timer Extended driver files to eliminate unintended timer functionality. Overall, these changes improve hardware interoperability, test coverage, and reliability, enabling faster iteration and more robust flight software.

March 2025: Focused on robustness and safety improvements in masa-umich/mcnugget. Delivered two critical items: a Windows-specific keyboard interrupt handler to gracefully handle Ctrl+C, reducing unexpected terminations; and a refactor of the autosequence script for hotfire tests to tighten timing and valve control, improving pressure regulation, ignition timing, and overall reliability. These changes enhance cross-platform stability, reduce operational risk during test runs, and set the stage for more repeatable, safe test executions. Key technologies demonstrated include cross-platform interrupt handling, scripting/refactor for high-stakes test automation, and careful calibration of control logic in automated sequences.

February 2025 monthly summary for masa-umich/Rocket-Avionics. Delivered sensor and networking enhancements to improve reliability, scalability, and performance. Key deliverables include: (1) MS5611 Sensor Driver Enhancements and Altitude Calculation with robust communication, direct ADC reads, improved abstraction and error handling, and refined altitude calculation using compensated pressure and temperature; included usage examples and updated docs. (2) Ethernet Communication via SPI6 Support, enabling Ethernet by adding SPI6 peripheral support, updating project configurations, and adjusting the system clock to accommodate the peripheral. (3) New TCP Server Architecture with Thread-Safe Messaging, introducing a modern client/server module structure, migrating legacy TCP code, and adding a thread-safe message queue and concurrency controls for managing connections. These efforts improve sensor reliability, network capabilities, and a scalable server design.

2025-01 Monthly Performance Summary: Focused on delivering core flight-capability features, improving data reliability, and strengthening maintainability. Key outcomes include end-to-end valve control and barometer data pathways, enhanced DAQ processing, and repository modernization.