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NArmistead

PROFILE

Narmistead

Over six months, contributed to SunDevilRocketry’s embedded systems by developing and refining firmware modules in C, focusing on reliability, maintainability, and hardware integration. Work included centralizing error handling and dependency management in the Flight-Computer-Firmware repository, introducing a unified error code system, and streamlining initialization for consistent behavior across modules. Delivered a camera control module and enhanced IMU data handling in the mod repository, improving sensor precision and error diagnosability. Implemented a high-precision timer and refactored sensor modules for maintainable data retrieval. Leveraged C, Makefile scripting, and version control to reduce technical debt, simplify debugging, and enable safer, more predictable flight operations.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

20Total
Bugs
0
Commits
20
Features
11
Lines of code
12,730
Activity Months6

Work History

June 2026

6 Commits • 4 Features

Jun 1, 2026

June 2026 monthly summary: Delivered targeted firmware and sensor module refinements for SunDevilRocketry, emphasizing dependency freshness, debugging efficiency, startup simplification, and maintainable data retrieval. These changes reduce integration risk, speed up issue resolution, and better align flight computer code with real sensor initialization and data paths.

May 2026

3 Commits • 1 Features

May 1, 2026

May 2026 performance summary for SunDevilRocketry/mod: Delivered foundational IMU data handling enhancements with sensor configurability to enable more precise and tunable flight data processing. Implemented signed integer conversions for accelerometer and gyroscope data to improve precision and dynamic range, added constants for gyro settings and sensitivity, and introduced macros for gravity and IMU sensor ranges. Included project maintenance improvements to facilitate future development. No major bugs fixed this month. Business value: more accurate sensor data and easier calibration, enabling tighter flight control and faster iteration. Technologies demonstrated: embedded C practices, macros usage, type safety with signed/const integers, and maintainability-focused engineering.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026: Implemented a high-precision fine timer in the Sun Devil Rocketry embedded library to improve timing accuracy across firmware operations. This enables more reliable control loops, synchronized sensor reads, and deterministic mission-critical behavior, laying the groundwork for future precision timing features and more predictable flight software performance.

August 2025

1 Commits • 1 Features

Aug 1, 2025

In August 2025, delivered a focused enhancement to the SunDevilRocketry/mod camera module: introduced a CAMERA_STATUS enum for explicit error reporting and refined set_camera_state to distinguish invalid selections from success, significantly improving reliability and diagnosability of camera operations.

July 2025

2 Commits • 1 Features

Jul 1, 2025

July 2025 performance highlights for SunDevilRocketry/mod: Delivered a Camera Control Module for the Flight Computer, enabling GPIO-based turn-on/off control for main and drogue cameras. The work includes header files and type definitions to support hardware abstraction and future integrations. Two commits were made: b23ea165f61fa7591e7eae494022aaceae555fde (New camera module) and 12e7ebf5bfb170fac4bc35162abccfb2f742872f (Clean up camera module). Major bugs fixed: none reported this month. Impact: reduces wiring complexity, improves reliability of camera control during flight, and creates a foundation for automated camera sequencing and data capture. Technologies/skills demonstrated: embedded GPIO control, C module architecture, hardware-software integration, code cleanup/refactor, header/type definition management.

June 2025

7 Commits • 3 Features

Jun 1, 2025

June 2025 delivered core reliability and maintainability improvements across SunDevilRocketry firmware and tooling, focusing on centralized error handling, modular common utilities, and synchronized dependencies. Key outcomes include: unified error handling via central Error_Code and fail-fast initialization across firmware components (app, canard/rev2, data-logger/rev2, dual-deploy, terminal); integration of a shared common module to enable consistent behavior and reduce duplication; external dependency synchronization by updating submodules to newer commits to mitigate drift and build issues; in mod, introduction of unified error handling and delay abstraction with a comprehensive ERROR_CODE enum and wrapper functions for HAL_Delay and Error_Handler, with naming consistency improvements. These changes improve system reliability, reduce debugging time, and streamline onboarding for new firmware modules, while demonstrating proficiency in embedded C, HAL, build tooling, and version control practices.

Activity

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Quality Metrics

Correctness92.4%
Maintainability90.0%
Architecture90.0%
Performance89.0%
AI Usage23.0%

Skills & Technologies

Programming Languages

CMakefileNone

Technical Skills

Build SystemsC ProgrammingC programmingDependency ManagementEmbedded SystemsError HandlingFirmware DevelopmentHardware ControlMakefileMakefile scriptingVersion Controldata processingdebuggingembedded systemserror handling

Repositories Contributed To

2 repos

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

SunDevilRocketry/mod

Jun 2025 Jun 2026
6 Months active

Languages Used

C

Technical Skills

C ProgrammingEmbedded SystemsFirmware DevelopmentHardware ControlC programmingembedded systems

SunDevilRocketry/Flight-Computer-Firmware

Jun 2025 Jun 2026
2 Months active

Languages Used

CMakefileNone

Technical Skills

Build SystemsC ProgrammingEmbedded SystemsError HandlingFirmware DevelopmentMakefile