inertialsense/inertial-sense-sdk
Nov 2024 – Sep 2025
11 Months active
Languages Used
BashBatchCC++CMakePythonShellYAML
Technical Skills
BashBuild AutomationBuild ScriptingBuild System ManagementBuild SystemsC Development
Walt Johnson
PROFILE
Walt Johnson
Walt developed and maintained the inertialsense/inertial-sense-sdk, focusing on embedded systems, data integrity, and developer productivity. Over 11 months, he delivered features such as robust flash configuration tooling, enhanced logging, and improved sensor data mapping, using C, C++, and Python. Walt modernized build automation with CMake and Python scripting, expanded cross-platform support, and strengthened test workflows. He addressed firmware stability, bootloader compatibility, and data validation, while refining Python bindings for analytics. His work emphasized maintainability through code refactoring and documentation, resulting in a more reliable SDK that supports advanced device configuration, efficient testing, and high-fidelity sensor data processing.
Overall Statistics
Feature vs Bugs
69%Features
Repository Contributions
183Total
Bugs
31
Commits
183
Features
68
Lines of code
18,577
Activity Months11
Your Network
8 peopleSame Organization
@inertialsense.com3
Work History
September 2025
5 Commits • 3 Features
Sep 1, 2025September 2025: Focused on extending sensor data fidelity, robust device enumeration, and code quality improvements in the inertial-sense-sdk. Delivered feature enhancements for magnetometer and GPS state handling, extended wheel_encoder data with variance fields, and a critical fix to DFU device counting, alongside minor code quality cleanup. These changes improve calibration reliability, data mappings, and hardware support, enabling more accurate analytics and smoother user experiences.
5 Commits • 3 Features
Sep 1, 2025September 2025: Focused on extending sensor data fidelity, robust device enumeration, and code quality improvements in the inertial-sense-sdk. Delivered feature enhancements for magnetometer and GPS state handling, extended wheel_encoder data with variance fields, and a critical fix to DFU device counting, alongside minor code quality cleanup. These changes improve calibration reliability, data mappings, and hardware support, enabling more accurate analytics and smoother user experiences.
September 2025
August 2025
11 Commits • 6 Features
Aug 1, 2025August 2025: Focused on reliability, data integrity, and test efficiency for the inertial-sense-sdk. Delivered bootloader stability and compatibility improvements, expanded EVB-2 testing configuration, strengthened GPS/INS data validation, and enhancements to test tooling and developer documentation. These efforts reduce firmware update risk, improve navigation data quality, and accelerate testing and onboarding for developers and customers.
August 2025
11 Commits • 6 Features
Aug 1, 2025August 2025: Focused on reliability, data integrity, and test efficiency for the inertial-sense-sdk. Delivered bootloader stability and compatibility improvements, expanded EVB-2 testing configuration, strengthened GPS/INS data validation, and enhancements to test tooling and developer documentation. These efforts reduce firmware update risk, improve navigation data quality, and accelerate testing and onboarding for developers and customers.
July 2025
10 Commits • 4 Features
Jul 1, 2025July 2025 (2025-07) - Delivered substantial enhancements to the inertial-sense-sdk flash configuration tooling, synchronization, and UI, while finalizing branding alignment and stability fixes. The work improves automation, reliability, and cross-hardware support, enabling faster configuration workflows and clearer device information propagation across FPkg updates.
10 Commits • 4 Features
Jul 1, 2025July 2025 (2025-07) - Delivered substantial enhancements to the inertial-sense-sdk flash configuration tooling, synchronization, and UI, while finalizing branding alignment and stability fixes. The work improves automation, reliability, and cross-hardware support, enabling faster configuration workflows and clearer device information propagation across FPkg updates.
July 2025
June 2025
7 Commits • 2 Features
Jun 1, 2025June 2025: Delivered stability fixes and new GPX support across inertial-sense-sdk. Highlights include IMX/Flash configuration and data mapping stability fixes to ensure data integrity and prevent out-of-bounds writes on STM32L4; added GPX flash configuration support in cltool and SDK with dedicated read/write methods; enhanced build tooling by propagating all clean_all script arguments to build_all.py for consistent cross-environment behavior; improved CLI help formatting for readability.
June 2025
7 Commits • 2 Features
Jun 1, 2025June 2025: Delivered stability fixes and new GPX support across inertial-sense-sdk. Highlights include IMX/Flash configuration and data mapping stability fixes to ensure data integrity and prevent out-of-bounds writes on STM32L4; added GPX flash configuration support in cltool and SDK with dedicated read/write methods; enhanced build tooling by propagating all clean_all script arguments to build_all.py for consistent cross-environment behavior; improved CLI help formatting for readability.
May 2025
15 Commits • 4 Features
May 1, 2025May 2025 deliverables across the inertial-sense-sdk focused on accelerating development cycles, improving data fidelity, and strengthening integration reliability. Key efforts spanned build tooling modernization, Python bindings stability, data logging fidelity, and targeted refactors that improve maintainability and diagnostics.
15 Commits • 4 Features
May 1, 2025May 2025 deliverables across the inertial-sense-sdk focused on accelerating development cycles, improving data fidelity, and strengthening integration reliability. Key efforts spanned build tooling modernization, Python bindings stability, data logging fidelity, and targeted refactors that improve maintainability and diagnostics.
May 2025
April 2025
38 Commits • 17 Features
Apr 1, 2025April 2025 – inertial-sense-sdk: Focused on configurability, data presentation, and developer productivity. Delivered YAML parameter support in SuperNPP, updated data_sets headers/definitions, introduced delta-time plotting (including RTK delta-time) and report-generation timestamps, and expanded flash config with new parameters and override capability. Added directory history for faster navigation and improved NPP output formatting. Implemented critical fixes to stabilize builds and UX (IO GPS type cleanup, removal of stray debug code, Windows batch/test script fixes). These changes enhance configurability, observability, and developer efficiency while delivering tangible business value for customers and the team.
April 2025
38 Commits • 17 Features
Apr 1, 2025April 2025 – inertial-sense-sdk: Focused on configurability, data presentation, and developer productivity. Delivered YAML parameter support in SuperNPP, updated data_sets headers/definitions, introduced delta-time plotting (including RTK delta-time) and report-generation timestamps, and expanded flash config with new parameters and override capability. Added directory history for faster navigation and improved NPP output formatting. Implemented critical fixes to stabilize builds and UX (IO GPS type cleanup, removal of stray debug code, Windows batch/test script fixes). These changes enhance configurability, observability, and developer efficiency while delivering tangible business value for customers and the team.
March 2025
26 Commits • 12 Features
Mar 1, 2025March 2025 performance summary for inertial-sense-sdk focused on delivering configurability, reliability, and testing maturity that directly support business value and faster iteration cycles.
26 Commits • 12 Features
Mar 1, 2025March 2025 performance summary for inertial-sense-sdk focused on delivering configurability, reliability, and testing maturity that directly support business value and faster iteration cycles.
March 2025
February 2025
10 Commits • 5 Features
Feb 1, 2025February 2025 summary for inertial-sense-sdk: delivered key features and bug fixes with emphasis on telemetry reliability, GPS robustness, and maintainability, driving data integrity and developer productivity. Notable outcomes include improved UART DMA reliability with clearer telemetry metrics, robust GPS data handling, streamlined packet write logic, expanded sensor configuration, and enhanced Python bindings and PIMU documentation.
February 2025
10 Commits • 5 Features
Feb 1, 2025February 2025 summary for inertial-sense-sdk: delivered key features and bug fixes with emphasis on telemetry reliability, GPS robustness, and maintainability, driving data integrity and developer productivity. Notable outcomes include improved UART DMA reliability with clearer telemetry metrics, robust GPS data handling, streamlined packet write logic, expanded sensor configuration, and enhanced Python bindings and PIMU documentation.
January 2025
25 Commits • 7 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for inertial-sense-sdk focusing on delivering business value through reliable plotting, API cleanliness, and robust fault handling. Key features delivered include multi-plot support for IMU and IMU3 plotting, extensive plotting enhancements and documentation improvements, and targeted API/API cleanup. Major testing and ROS/tooling improvements also shipped to enable faster validation and smoother integration with downstream workflows. Significant bug fixes addressed core plotting issues, data integrity, and fault handling, improving reliability for developers and end users. Highlights: - Plotting enhancements: added ability to plot both IMU and IMU3 at the same time (commit 75b4bac9d7b75acf58f2584fd4716beefd19d453). - Refactor and API cleanup: Logreader regcmp refactor, rename ISMatrix.h macros, comment updates, and merge from 2.2.2-rc, with copyright updated to 2025 (commits 19a29b117719792c21e5cb972355e4c695ca7d04; 862657caa883e7ade104a8a51ad2dd63fd26c6d8; 3b839fb32f4fd7121915c2df073b1a61878ee41d; ee90850cee6c2e44249a0b34d8058b7ef4ba0a9f; 899e6bb627f6ecc3197ce6afabe3bf3d7d50ebb5). - Testing and validation: added NMEA runtime test (commit b6c01d0c301b90914a50e876977e0f6929ef214c). - ROS and versioning improvements: bump ROS version and normalize version dirty character (commits 11f904de2a0bbc3916348b96ea737eee72ad6e99; 4b44b4571a5b829d4050e55fc7d8b64156509999). - Fault handling and reliability: IMU fault rejection and integration of ser check init fault handling into LogInspector (commits 8ef5fc60105c6c682489c490b2f1238139018af9; ed527b39aea3180712a98f508e7b0b0ad4dfe831; 6f884c0a59bcbc8efaa6bb88b6e2c1cb71c2b476). - Other improvements: plotting fixes (core plotting pointer fixes, --nobuild respect, directory creation, IMX reset bug, triple plot fixes, LogInspector IMUPQR units, pybindMacros.h), NMEA runtime test, and additional plotting/documentation fixes (commits 87d0a1bd04e847da781d1e6067723e0b983048d2; 7953043695c911684dc10ffe9ae4af32a33ad67a; bd1a0730dcb232188d14437e7043b5b61ea213f6; abeb1e18902544d1884e089daf620463f231dd3a; 8f93790331968b949ed1eb2b8b58d8d13c51d0a6; 4dd1b8a16e06ccf0cb7238607523e0039c2ec337; 7c2ebf476614e229d446ab772f15286002d757f4; e5e365134c4fe5a510da059c0a84dbc9709db865; 11f904de2a0bbc3916348b96ea737eee72ad6e99; 4b44b4571a5b829d4050e55fc7d8b64156509999; aaff0ba89feb742f2bfd3d5167ef41cd40a84f11; 318d1981340f495befb75175cb484842e37fec25; 98b024777bedffb1321b21f8646b26497b68e8b1; 60c680c6ab54e2192a097b1e76f95744b99e2d69).
25 Commits • 7 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for inertial-sense-sdk focusing on delivering business value through reliable plotting, API cleanliness, and robust fault handling. Key features delivered include multi-plot support for IMU and IMU3 plotting, extensive plotting enhancements and documentation improvements, and targeted API/API cleanup. Major testing and ROS/tooling improvements also shipped to enable faster validation and smoother integration with downstream workflows. Significant bug fixes addressed core plotting issues, data integrity, and fault handling, improving reliability for developers and end users. Highlights: - Plotting enhancements: added ability to plot both IMU and IMU3 at the same time (commit 75b4bac9d7b75acf58f2584fd4716beefd19d453). - Refactor and API cleanup: Logreader regcmp refactor, rename ISMatrix.h macros, comment updates, and merge from 2.2.2-rc, with copyright updated to 2025 (commits 19a29b117719792c21e5cb972355e4c695ca7d04; 862657caa883e7ade104a8a51ad2dd63fd26c6d8; 3b839fb32f4fd7121915c2df073b1a61878ee41d; ee90850cee6c2e44249a0b34d8058b7ef4ba0a9f; 899e6bb627f6ecc3197ce6afabe3bf3d7d50ebb5). - Testing and validation: added NMEA runtime test (commit b6c01d0c301b90914a50e876977e0f6929ef214c). - ROS and versioning improvements: bump ROS version and normalize version dirty character (commits 11f904de2a0bbc3916348b96ea737eee72ad6e99; 4b44b4571a5b829d4050e55fc7d8b64156509999). - Fault handling and reliability: IMU fault rejection and integration of ser check init fault handling into LogInspector (commits 8ef5fc60105c6c682489c490b2f1238139018af9; ed527b39aea3180712a98f508e7b0b0ad4dfe831; 6f884c0a59bcbc8efaa6bb88b6e2c1cb71c2b476). - Other improvements: plotting fixes (core plotting pointer fixes, --nobuild respect, directory creation, IMX reset bug, triple plot fixes, LogInspector IMUPQR units, pybindMacros.h), NMEA runtime test, and additional plotting/documentation fixes (commits 87d0a1bd04e847da781d1e6067723e0b983048d2; 7953043695c911684dc10ffe9ae4af32a33ad67a; bd1a0730dcb232188d14437e7043b5b61ea213f6; abeb1e18902544d1884e089daf620463f231dd3a; 8f93790331968b949ed1eb2b8b58d8d13c51d0a6; 4dd1b8a16e06ccf0cb7238607523e0039c2ec337; 7c2ebf476614e229d446ab772f15286002d757f4; e5e365134c4fe5a510da059c0a84dbc9709db865; 11f904de2a0bbc3916348b96ea737eee72ad6e99; 4b44b4571a5b829d4050e55fc7d8b64156509999; aaff0ba89feb742f2bfd3d5167ef41cd40a84f11; 318d1981340f495befb75175cb484842e37fec25; 98b024777bedffb1321b21f8646b26497b68e8b1; 60c680c6ab54e2192a097b1e76f95744b99e2d69).
January 2025
December 2024
18 Commits • 4 Features
Dec 1, 2024In 2024-12, the inertial-sense-sdk team delivered a set of reliability, time-synchronization, and data visualization enhancements across a single-repo workflow, with a clear focus on cross-platform stability, GPS-to-UTC timing accuracy, and expanded data inspection capabilities. These efforts reduce field troubleshooting time, improve firmware build reliability, and empower data-driven decisions from richer UTC-based visualization and raw IMU data options. Key outcomes include stabilizing the firmware build system, strengthening NMEA ZDA time handling and GPS time conversion, expanding UTC time display and plotting utilities in LogInspector, and introducing a dedicated IMU3 raw data logging preset, all while maintaining code quality through targeted maintenance and refactoring.
December 2024
18 Commits • 4 Features
Dec 1, 2024In 2024-12, the inertial-sense-sdk team delivered a set of reliability, time-synchronization, and data visualization enhancements across a single-repo workflow, with a clear focus on cross-platform stability, GPS-to-UTC timing accuracy, and expanded data inspection capabilities. These efforts reduce field troubleshooting time, improve firmware build reliability, and empower data-driven decisions from richer UTC-based visualization and raw IMU data options. Key outcomes include stabilizing the firmware build system, strengthening NMEA ZDA time handling and GPS time conversion, expanding UTC time display and plotting utilities in LogInspector, and introducing a dedicated IMU3 raw data logging preset, all while maintaining code quality through targeted maintenance and refactoring.
November 2024
18 Commits • 4 Features
Nov 1, 2024Month 2024-11: Delivered a comprehensive set of features and robustness improvements for the inertial-sense-sdk, prioritizing data integrity, cross-platform build automation, and diagnostic capabilities. Key features include enhanced logging with ISLogger improvements, new ISMatrix math utilities for faster IMX MCU operations, modernization of build and CI/CD tooling, and GNSS time fault reporting. Major fixes address log/packet processing robustness and file filtering reliability, with ongoing code hygiene improvements for maintainability.
18 Commits • 4 Features
Nov 1, 2024Month 2024-11: Delivered a comprehensive set of features and robustness improvements for the inertial-sense-sdk, prioritizing data integrity, cross-platform build automation, and diagnostic capabilities. Key features include enhanced logging with ISLogger improvements, new ISMatrix math utilities for faster IMX MCU operations, modernization of build and CI/CD tooling, and GNSS time fault reporting. Major fixes address log/packet processing robustness and file filtering reliability, with ongoing code hygiene improvements for maintainability.
November 2024
Activity
Loading activity data...
Quality Metrics
Correctness89.0%
Maintainability89.2%
Architecture84.4%
Performance82.6%
AI Usage21.0%
Skills & Technologies
Programming Languages
BashBatchCC++CMakeCMakeScriptPythonShellYAMLbat
Technical Skills
BashBatch ScriptingBootloader DevelopmentBuffer ManagementBug FixBuild AutomationBuild ManagementBuild ScriptingBuild SystemBuild System ConfigurationBuild System ManagementBuild SystemsBuild ToolsCC Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline