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niekky

PROFILE

Niekky

Trung Kien contributed to SunDevilRocketry by developing and refining embedded flight computer firmware, focusing on safety, telemetry, and hardware configurability. He engineered robust IMU calibration workflows, launch detection systems, and real-time sensor plotting, integrating these features into modular C codebases. His work included overhauling flash memory management for reliable preset storage, expanding GPS and sensor data models, and implementing PID control debugging modes to accelerate development cycles. By updating build systems and synchronizing submodules, he improved release stability and maintainability. Across SunDevilRocketry repositories, Trung Kien’s solutions demonstrated depth in embedded systems, C programming, and real-time control systems.

Overall Statistics

Feature vs Bugs

74%Features

Repository Contributions

88Total
Bugs
11
Commits
88
Features
32
Lines of code
4,409
Activity Months6

Work History

April 2025

4 Commits

Apr 1, 2025

April 2025 Monthly Summary for SunDevilRocketry development: Key features and fixes delivered across two repositories focused on safety, stability, and build reliability. Implemented critical sensor and control-system improvements with targeted hotfixes, and aligned submodules to maintain code integrity. Overall impact: Improved orientation accuracy for safety-critical flight behavior, enhanced launch-detection robustness, stabilized PID performance, and better build stability through submodule synchronization. These changes reduce risk during flight operations and shorten debugging cycles for future iterations. Technologies/skills demonstrated: embedded C/firmware development, real-time control systems, safety-critical software practices, hotfix/triage discipline, Git-based version control, and submodule management.

March 2025

20 Commits • 13 Features

Mar 1, 2025

March 2025 performance summary: This month delivered robust servo control capabilities and broader flight-system integration across SunDevilRocketry/sdec and Flight-Computer-Firmware, reinforcing autonomous operations and data-quality. Key features delivered include a Servo Command System with validated input and reliable byte serialization for the flight computer, USB/Canard/terminal SERVO command integration, GPS module integration for STM32H750 with updated build system, and a comprehensive data-logging and calibration framework with launch-detection improvements. Improvements in timing and reliability (tdelta, tick timer, and expanded flash buffers) underpinned safer loop timing and data integrity. Notable bug fixes included valve number mapping corrections, removal of a duplicate imu_offset, servo command execution break fix, and improved preset data writes. These changes collectively enhance maintainability, safety, and operational readiness of the rocket avionics stack, enabling faster iteration and more reliable launches.

February 2025

18 Commits • 7 Features

Feb 1, 2025

February 2025 performance summary highlighting GPS data handling improvements, firmware throughput upgrades, and release stability enhancements across SunDevilRocketry repos. Delivered scalable data models, preparatory scaffolding for motors 3 & 4, improved preset management, and higher-speed communications to enable richer telemetry and faster iteration cycles.

January 2025

16 Commits • 4 Features

Jan 1, 2025

January 2025: Consolidated reliability gains and expanded hardware configurability across two repositories. In SunDevilRocketry/Flight-Computer-Firmware, delivered a comprehensive overhaul of flash memory and preset data persistence, including refactored read/write paths, integration of PRESET_DATA structures, refined address handling and buffer sizing, improved error handling, and memory-safety improvements with padding fixes, erase-before-write, and explicit flash sizing. This effort enhances sensor data integrity, config preset reliability, and resilience during power cycles. Also refreshed external dependencies to incorporate updated fixes (Unity/lib submodules) addressing read/write errors in the subproject. In SunDevilRocketry/mod, extended SERVO_PRESET to support additional servos (rp_servo3 and rp_servo4), enabling configuring more hardware without code changes, and added improved error reporting for presets with the new FLASH_PRESET_NOT_FOUND status. Overall, the month delivered measurable improvements in data integrity, fault diagnosability, and hardware flexibility with clear business value for reliability, maintenance, and future scalability.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for the Flight-Computer-Firmware team. Focused on improving testability and debugging capabilities for the PID control loop to accelerate development cycles without impacting production behavior.

November 2024

29 Commits • 7 Features

Nov 1, 2024

November 2024 performance highlights across SunDevilRocketry repositories. Focused on safety, telemetry, and configurability for flight firmware and tooling. Key features include: a robust IMU calibration workflow with LED indicators and an auto-trigger when ignition is shorted; a launch detection system integrated into the main loop with data logging and runtime flags to improve fault tolerance and flight decision-making; major presets and telemetry expansion with flash-based save/read (BARO_PRESET, SERVO_PRESET) and a redesigned preset data model, plus expanded sensor data to include velocity and barometric altitude; flight computer data expansion and parsing improvements to support new fields (velocity, baro altitude, temperature) and more reliable data decoding; and real-time sensor plotting with a dedicated plotting module and CLI (pplot) to accelerate diagnostics and validation of flight data. Additional readiness improvements include hardware preset read/save commands and ongoing refinements across the sensor data framework. Overall, these efforts enhance safety, reduce configuration time, deliver richer telemetry for operational insight, and improve developer productivity through modular, well-tested components.

Activity

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Quality Metrics

Correctness84.2%
Maintainability84.6%
Architecture77.4%
Performance76.6%
AI Usage20.2%

Skills & Technologies

Programming Languages

AssemblyCMakefilePython

Technical Skills

Aerospace EngineeringBuild SystemsC ProgrammingCalibrationCode OrganizationCode RefactoringCommand HandlingCommand Line InterfaceCommand Line Interface DevelopmentCommand-line Interface DevelopmentControl SystemsData FormattingData ParsingData ProcessingData Structures

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

SunDevilRocketry/Flight-Computer-Firmware

Nov 2024 Apr 2025
6 Months active

Languages Used

CAssemblyMakefile

Technical Skills

C ProgrammingCalibrationControl SystemsEmbedded SystemsFirmware DevelopmentFlash Memory Management

SunDevilRocketry/sdec

Nov 2024 Mar 2025
3 Months active

Languages Used

Python

Technical Skills

Code OrganizationCommand Line Interface DevelopmentCommand-line Interface DevelopmentData ParsingData ProcessingData Visualization

SunDevilRocketry/mod

Nov 2024 Apr 2025
5 Months active

Languages Used

C

Technical Skills

Aerospace EngineeringC ProgrammingData StructuresEmbedded SystemsFirmware DevelopmentSensor Integration

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