UBC-Snowbots/RoverFlake2
Nov 2024 – Sep 2025
11 Months active
Languages Used
C#C++CMakeGitPythonShellURDFXAML
Technical Skills
Audio PlaybackBuild System ConfigurationC++C++ DevelopmentCMakeDevOps
Roozki
PROFILE
Roozki
Rowan Zawadzki developed and maintained the RoverFlake2 robotics platform for UBC-Snowbots, delivering 61 features and 17 bug fixes over 11 months. He architected modular subsystems for navigation, sensor fusion, camera pipelines, and arm control, emphasizing maintainability and operator usability. Working primarily in C++ and Python, Rowan integrated ROS 2, ONVIF, and GNSS technologies to enable autonomous navigation, real-time health monitoring, and distributed camera control. His work included refactoring hardware interfaces, stabilizing build systems, and implementing configuration-driven extensibility. The depth of his contributions ensured robust, scalable operations and streamlined onboarding, with a clear focus on long-term reliability and deployment readiness.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
135Total
Bugs
17
Commits
135
Features
61
Lines of code
71,805
Activity Months11
Your Network
8 peopleWork History
September 2025
3 Commits • 1 Features
Sep 1, 20252025-09 Monthly Summary – RoverFlake2 (UBC-Snowbots) Focused on maintainability of the arm hardware interface and stability of the build/package configuration to enable safer, faster iteration on hardware control features. Key outcomes: - ArmSerial Interface Maintainability Enhancement: Refactor of the ArmSerial class to remove unused methods and member variables and to reorganize header/source files, improving clarity and long-term maintainability of the arm hardware interface. (Commit: 7d0747245adbea86ba7db06f7c04a1544485eb68) - Package Configuration Stabilization: Stabilized build/package configuration by applying an initial change to package.json to address dependency/script issues, followed by a rollback on the correct branch to revert unintended modifications and restore integrity. (Commits: ec84a6c07d37b1c37ea06f9da63607dcbe2c8add; 2a0e627c58c4599499bd9a2d73d1f06e49d937c4) Overall impact: - Reduced technical debt in the arm control path and improved maintainability, enabling quicker feature iteration and safer deployments. - Restored build reliability and CI stability by correcting configuration changes and preventing drift from unintended commits. Technologies/skills demonstrated: - C++ refactoring and header/source organization for hardware interfaces - Build and dependency management (package.json) and recovery rollback procedures - Version control discipline and targeted rollbacks to preserve stability - Focus on business value through reduced risk and faster iteration cycles.
3 Commits • 1 Features
Sep 1, 20252025-09 Monthly Summary – RoverFlake2 (UBC-Snowbots) Focused on maintainability of the arm hardware interface and stability of the build/package configuration to enable safer, faster iteration on hardware control features. Key outcomes: - ArmSerial Interface Maintainability Enhancement: Refactor of the ArmSerial class to remove unused methods and member variables and to reorganize header/source files, improving clarity and long-term maintainability of the arm hardware interface. (Commit: 7d0747245adbea86ba7db06f7c04a1544485eb68) - Package Configuration Stabilization: Stabilized build/package configuration by applying an initial change to package.json to address dependency/script issues, followed by a rollback on the correct branch to revert unintended modifications and restore integrity. (Commits: ec84a6c07d37b1c37ea06f9da63607dcbe2c8add; 2a0e627c58c4599499bd9a2d73d1f06e49d937c4) Overall impact: - Reduced technical debt in the arm control path and improved maintainability, enabling quicker feature iteration and safer deployments. - Restored build reliability and CI stability by correcting configuration changes and preventing drift from unintended commits. Technologies/skills demonstrated: - C++ refactoring and header/source organization for hardware interfaces - Build and dependency management (package.json) and recovery rollback procedures - Version control discipline and targeted rollbacks to preserve stability - Focus on business value through reduced risk and faster iteration cycles.
September 2025
August 2025
11 Commits • 6 Features
Aug 1, 2025August 2025 monthly summary for UBC-Snowbots/RoverFlake2: Delivered a comprehensive set of capabilities across PTZ camera control, system health visibility, GNSS data persistence, arm actuation, and ROS ecosystem improvements. These efforts enhance rover operability, safety, and data integrity, while accelerating automation readiness and operator confidence.
August 2025
11 Commits • 6 Features
Aug 1, 2025August 2025 monthly summary for UBC-Snowbots/RoverFlake2: Delivered a comprehensive set of capabilities across PTZ camera control, system health visibility, GNSS data persistence, arm actuation, and ROS ecosystem improvements. These efforts enhance rover operability, safety, and data integrity, while accelerating automation readiness and operator confidence.
July 2025
17 Commits • 6 Features
Jul 1, 2025July 2025 monthly summary for UBC-Snowbots/RoverFlake2: Significant progress across networking, perception, navigation, and data pipelines. Delivered automated DDS network setup tooling and robust health monitoring, established GNSS/NMEA data acquisition, advanced autonomous navigation with LiDAR integration, and enhanced camera control. Strengthened data logging, launch orchestration, and ROS 2 node integration to improve reliability and operational readiness for field deployments. The month also laid groundwork for expanded science sensing with a new gas sensor package.
17 Commits • 6 Features
Jul 1, 2025July 2025 monthly summary for UBC-Snowbots/RoverFlake2: Significant progress across networking, perception, navigation, and data pipelines. Delivered automated DDS network setup tooling and robust health monitoring, established GNSS/NMEA data acquisition, advanced autonomous navigation with LiDAR integration, and enhanced camera control. Strengthened data logging, launch orchestration, and ROS 2 node integration to improve reliability and operational readiness for field deployments. The month also laid groundwork for expanded science sensing with a new gas sensor package.
July 2025
June 2025
8 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for RoverFlake2: Delivered a robust Navigation, Localization, and Sensor Fusion framework (GPS–IMU fusion, ROS 2 sensor fusion nodes, and pose estimation) with URDF/RViz/SLAM scaffolding and TF publishing, expanded perception with lidar integration, and established groundwork for GNSS integration. Added an Audio Feedback Speaker Node for audible rover interactions. Fixed Dashboard stability issues, updated the DDS cyclone profile to be git-ignored, and provided template copy guidance. Bumped the interface version from 20 to 21 to maintain compatibility (no code changes required). These efforts improve autonomous reliability, operator feedback, and deployment readiness while aligning with ROS2 best practices and long-term maintenance.
June 2025
8 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for RoverFlake2: Delivered a robust Navigation, Localization, and Sensor Fusion framework (GPS–IMU fusion, ROS 2 sensor fusion nodes, and pose estimation) with URDF/RViz/SLAM scaffolding and TF publishing, expanded perception with lidar integration, and established groundwork for GNSS integration. Added an Audio Feedback Speaker Node for audible rover interactions. Fixed Dashboard stability issues, updated the DDS cyclone profile to be git-ignored, and provided template copy guidance. Bumped the interface version from 20 to 21 to maintain compatibility (no code changes required). These efforts improve autonomous reliability, operator feedback, and deployment readiness while aligning with ROS2 best practices and long-term maintenance.
May 2025
3 Commits • 2 Features
May 1, 2025May 2025 — Delivered scalable camera pipeline enhancements and IP camera integration to support multi-camera rover operations and ROS 2 control; no explicit major bug fixes documented; focus on feature delivery and platform readiness.
3 Commits • 2 Features
May 1, 2025May 2025 — Delivered scalable camera pipeline enhancements and IP camera integration to support multi-camera rover operations and ROS 2 control; no explicit major bug fixes documented; focus on feature delivery and platform readiness.
May 2025
April 2025
4 Commits • 3 Features
Apr 1, 2025April 2025 performance summary for RoverFlake2. Focused on improving system health visibility, distributed subsystem coordination, and camera pipeline configuration. Delivered an overhaul of the heartbeat monitoring system, modernized the Dashboard HMI for multiple onboard computers, and established foundational camera pipeline configuration parameters. Implemented stability improvements to the distributed UI and heartbeat feedback loop to enable faster diagnosis and more reliable operations, setting the stage for scalable health tracking across the rover stack.
April 2025
4 Commits • 3 Features
Apr 1, 2025April 2025 performance summary for RoverFlake2. Focused on improving system health visibility, distributed subsystem coordination, and camera pipeline configuration. Delivered an overhaul of the heartbeat monitoring system, modernized the Dashboard HMI for multiple onboard computers, and established foundational camera pipeline configuration parameters. Implemented stability improvements to the distributed UI and heartbeat feedback loop to enable faster diagnosis and more reliable operations, setting the stage for scalable health tracking across the rover stack.
March 2025
35 Commits • 23 Features
Mar 1, 2025March 2025 was productive for RoverFlake2, delivering core CBS integration, initiating the camera processing path, and advancing architecture toward modularity and publish/subscribe patterns. System reliability and maintainability were improved through targeted stability fixes and ongoing infrastructure improvements, setting the stage for scalable operations and easier future integration.
35 Commits • 23 Features
Mar 1, 2025March 2025 was productive for RoverFlake2, delivering core CBS integration, initiating the camera processing path, and advancing architecture toward modularity and publish/subscribe patterns. System reliability and maintainability were improved through targeted stability fixes and ongoing infrastructure improvements, setting the stage for scalable operations and easier future integration.
March 2025
February 2025
22 Commits • 6 Features
Feb 1, 2025February 2025 — RoverFlake2 (UBC-Snowbots) Key features delivered: - Hardware/CBS Management Progress: Began maturing the CBS hardware management module with port discovery/workflows and node renaming to hardware manager, laying groundwork for scalable hardware orchestration. Notable commits include c7799bbe4e (Making progress), f3baafbf035d8dbf2a9bfa28a70536df7fe12488 (cbs progress), 9ba62fb2b1e6caef03ed0017573f31bc0ad9bb71 (findMyPort working well), and e52c7911ddc70e3cf714e8b4190e369900ce47c7 (renamed cbs manager node to hardware manager). - Arm Panel and IK Implementation: Established Arm Panel pipeline and IK movement with HMI integration, enabling IK-driven motion and speed control. Key commits: f6cf941dcc55aab9ce7aad00ca43cfdde67f8d72 (Arm Panel pipeline set up), a92013a2337722cda63ba0233ce7387c3296d475 (Added ik movement to HMI), 92ab0b7c1f452271df7aa95fe73b9786287bc223 (servo ik working), 934eb93897af1eb864090a8eaa228a6c6a7b155d (hmi speeds now work for IK). - CI/Networking Setup: Implemented Cyclone DDS configuration and Zerotier-based addressing to enable reliable networked operation across components. Commits include 5c280e6561fc48e112b3d3bdacaed855bd364509 (cyclonedds config) and 4e99119419b74a449940d57e0fceae31842097d6 (Added peer address just using zerotier for now). - Misc/Improvements: Misc progress and working state updates; CBS hardware manager cleanup; minor CBS arm interface fixes; arm serial notifications and config cleanups toward stability. Notable commits: 05e5ae79aac0d3eec7d12735aacb579d7bc53a35 (Stuff is actually working now!), baae074e705ff22419a3dce7523cecd3014105c2 (Minor cleanup on cbs hardware manager), 92eee084f32529d4055dbae784da00920756f844 (minor fix on cbs arm interface). Major bugs fixed: - Arm Panel/IK: Resolved parsing issues (sscanf → sanitized with ss and input handling) and x/y coordinate issues affecting IK; commits include 06fe92f3d53f3b013a89c3a115d2303d6bb38cda and 7af582c235455097c5d7cdae6e6af8fbfa6d0fe3. - Misc stability: General stability improvements and conflict resolutions during merges; commits 0dc20dac18748dd26c21a5cc7fd129fd025a62e2 and 5a9c010fdd51e322accb3ea7a55dfb6a1dffdc9e. - CBS Arm interface: Minor fixes to ensure reliable operation; commit 92eee084f32529d4055dbae784da00920756f844. - Arm serial: Investigations into serial reliability with initial remediation; commit 4f65f9fbd0f9c6be4f60761c172a9467331a29b2. Overall impact and accomplishments: - Significantly accelerated hardware integration readiness for RoverFlake2 by maturing the CBS hardware management module and stabilizing arm IK workflows, enabling more efficient testing and deployment cycles. - Improved reliability and performance of the arm control loop via IK integration and HMI synchronization, unlocking more realistic operator-in-the-loop tests. - Established repeatable networking configuration (CycloneDDS) and Zerotier addressing to support distributed components and scalable deployments. - Reduced risk of large-scale merge conflicts and introduced cleaner hardware management code through targeted cleanup and fixes. Technologies/skills demonstrated: - Hardware management and port discovery strategies; naming conventions and system reorganization. - Arm Panel integration, Inverse Kinematics, and HMI synchronization. - Cyclone DDS/Cyclone DDS config and Zerotier-based networking; remote connectivity planning. - Debugging and stabilization of serial communication and coordinate logic; code hygiene and merge conflict resolution. Business value: - Shortened hardware integration cycle with a clearer hardware management model. - More capable robotic arm behavior through IK-enabled motion and responsive HMI, enabling richer automation and test scenarios. - Reliable networked orchestration enabling parallel development and remote testing across components. - Increased stability reduces downtime and supports faster iteration toward production-quality features.
February 2025
22 Commits • 6 Features
Feb 1, 2025February 2025 — RoverFlake2 (UBC-Snowbots) Key features delivered: - Hardware/CBS Management Progress: Began maturing the CBS hardware management module with port discovery/workflows and node renaming to hardware manager, laying groundwork for scalable hardware orchestration. Notable commits include c7799bbe4e (Making progress), f3baafbf035d8dbf2a9bfa28a70536df7fe12488 (cbs progress), 9ba62fb2b1e6caef03ed0017573f31bc0ad9bb71 (findMyPort working well), and e52c7911ddc70e3cf714e8b4190e369900ce47c7 (renamed cbs manager node to hardware manager). - Arm Panel and IK Implementation: Established Arm Panel pipeline and IK movement with HMI integration, enabling IK-driven motion and speed control. Key commits: f6cf941dcc55aab9ce7aad00ca43cfdde67f8d72 (Arm Panel pipeline set up), a92013a2337722cda63ba0233ce7387c3296d475 (Added ik movement to HMI), 92ab0b7c1f452271df7aa95fe73b9786287bc223 (servo ik working), 934eb93897af1eb864090a8eaa228a6c6a7b155d (hmi speeds now work for IK). - CI/Networking Setup: Implemented Cyclone DDS configuration and Zerotier-based addressing to enable reliable networked operation across components. Commits include 5c280e6561fc48e112b3d3bdacaed855bd364509 (cyclonedds config) and 4e99119419b74a449940d57e0fceae31842097d6 (Added peer address just using zerotier for now). - Misc/Improvements: Misc progress and working state updates; CBS hardware manager cleanup; minor CBS arm interface fixes; arm serial notifications and config cleanups toward stability. Notable commits: 05e5ae79aac0d3eec7d12735aacb579d7bc53a35 (Stuff is actually working now!), baae074e705ff22419a3dce7523cecd3014105c2 (Minor cleanup on cbs hardware manager), 92eee084f32529d4055dbae784da00920756f844 (minor fix on cbs arm interface). Major bugs fixed: - Arm Panel/IK: Resolved parsing issues (sscanf → sanitized with ss and input handling) and x/y coordinate issues affecting IK; commits include 06fe92f3d53f3b013a89c3a115d2303d6bb38cda and 7af582c235455097c5d7cdae6e6af8fbfa6d0fe3. - Misc stability: General stability improvements and conflict resolutions during merges; commits 0dc20dac18748dd26c21a5cc7fd129fd025a62e2 and 5a9c010fdd51e322accb3ea7a55dfb6a1dffdc9e. - CBS Arm interface: Minor fixes to ensure reliable operation; commit 92eee084f32529d4055dbae784da00920756f844. - Arm serial: Investigations into serial reliability with initial remediation; commit 4f65f9fbd0f9c6be4f60761c172a9467331a29b2. Overall impact and accomplishments: - Significantly accelerated hardware integration readiness for RoverFlake2 by maturing the CBS hardware management module and stabilizing arm IK workflows, enabling more efficient testing and deployment cycles. - Improved reliability and performance of the arm control loop via IK integration and HMI synchronization, unlocking more realistic operator-in-the-loop tests. - Established repeatable networking configuration (CycloneDDS) and Zerotier addressing to support distributed components and scalable deployments. - Reduced risk of large-scale merge conflicts and introduced cleaner hardware management code through targeted cleanup and fixes. Technologies/skills demonstrated: - Hardware management and port discovery strategies; naming conventions and system reorganization. - Arm Panel integration, Inverse Kinematics, and HMI synchronization. - Cyclone DDS/Cyclone DDS config and Zerotier-based networking; remote connectivity planning. - Debugging and stabilization of serial communication and coordinate logic; code hygiene and merge conflict resolution. Business value: - Shortened hardware integration cycle with a clearer hardware management model. - More capable robotic arm behavior through IK-enabled motion and responsive HMI, enabling richer automation and test scenarios. - Reliable networked orchestration enabling parallel development and remote testing across components. - Increased stability reduces downtime and supports faster iteration toward production-quality features.
January 2025
9 Commits • 4 Features
Jan 1, 2025January 2025 focus: deliver operator-centric rover control features, establish robust automation scaffolding, and accelerate deployment readiness for RoverFlake2. The month produced hands-on velocity control for rover testing, end-effector integration groundwork, CBS bootstrapping for orchestrated autonomy, and watchdog deployment readiness, with clear paths for field testing and future MoveIt integration.
9 Commits • 4 Features
Jan 1, 2025January 2025 focus: deliver operator-centric rover control features, establish robust automation scaffolding, and accelerate deployment readiness for RoverFlake2. The month produced hands-on velocity control for rover testing, end-effector integration groundwork, CBS bootstrapping for orchestrated autonomy, and watchdog deployment readiness, with clear paths for field testing and future MoveIt integration.
January 2025
December 2024
9 Commits • 4 Features
Dec 1, 2024Monthly work summary for 2024-12 on UBC-Snowbots/RoverFlake2 highlighting key feature deliveries, reliability improvements, and operational impact. Focused on arm calibration, UI usability, build reliability, and system health monitoring to enhance accuracy, efficiency, and uptime.
December 2024
9 Commits • 4 Features
Dec 1, 2024Monthly work summary for 2024-12 on UBC-Snowbots/RoverFlake2 highlighting key feature deliveries, reliability improvements, and operational impact. Focused on arm calibration, UI usability, build reliability, and system health monitoring to enhance accuracy, efficiency, and uptime.
November 2024
14 Commits • 4 Features
Nov 1, 2024Month: 2024-11 summary for UBC-Snowbots/RoverFlake2. Delivered key features with a focus on realism, maintainability, and onboarding. Highlights include the Arm Simulation Bridge and State Management with a sim helper node, joint state publishing, and launch/config utilities to enable realistic arm testing; centralized arm control parameters and topic constants to simplify maintenance and support MoveIt integration; Rover URDF/Description packaging refactor consolidating assets under rover_description to improve clarity and future integration; tooling, setup automation, and UX improvements including a sounds package and repo hygiene updates to streamline onboarding.
14 Commits • 4 Features
Nov 1, 2024Month: 2024-11 summary for UBC-Snowbots/RoverFlake2. Delivered key features with a focus on realism, maintainability, and onboarding. Highlights include the Arm Simulation Bridge and State Management with a sim helper node, joint state publishing, and launch/config utilities to enable realistic arm testing; centralized arm control parameters and topic constants to simplify maintenance and support MoveIt integration; Rover URDF/Description packaging refactor consolidating assets under rover_description to improve clarity and future integration; tooling, setup automation, and UX improvements including a sounds package and repo hygiene updates to streamline onboarding.
November 2024
Activity
Loading activity data...
Quality Metrics
Correctness80.0%
Maintainability81.0%
Architecture79.0%
Performance70.6%
AI Usage20.2%
Skills & Technologies
Programming Languages
BashCC#C++CMakeCSSGitHeaderIDLJSON
Technical Skills
3D ModelingAudio PlaybackBuild System ConfigurationBuild SystemsC++C++ DevelopmentCMakeCSSCamera ControlCamera IntegrationCode OrganizationComputer VisionConfiguration ManagementControl SystemsDDS
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline