lvgl/lvgl
Oct 2024 – Jan 2026
6 Months active
Languages Used
cmakeC
Technical Skills
build systemscmakeC ProgrammingEmbedded SystemsLibrary DevelopmentDriver Development
Niklas Fiekas
PROFILE
Niklas Fiekas
Contributed to the lvgl/lvgl repository by developing and enhancing features across embedded systems, UI components, and driver integration using C and CMake. Delivered improvements such as raw Code 128 barcode encoding, flexible chart widget rendering, and evdev input device creation from existing file descriptors, addressing integration and visualization needs. Refactored input device timing for smoother scrolling and enhanced widget APIs for text and symbol handling, while also fixing style property retrieval bugs. Focused on build system reliability by correcting package configuration placement, ensuring reproducible builds and easier downstream integration. Demonstrated depth in embedded systems, UI development, and build systems.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
10Total
Bugs
2
Commits
10
Features
6
Lines of code
489
Activity Months6
Your Network
166 peopleWork History
January 2026
5 Commits • 2 Features
Jan 1, 2026January 2026 (2026-01) monthly contributions for lvgl/lvgl focused on UI widget enhancements and stability hardening. Delivered Textarea and Dropdown widget improvements with static/non-static setters and image-based symbol sources, along with a bug fix to the style property retrieval path. Outcomes include improved UI configurability, reduced runtime risk, and a smoother API for widget configuration across projects. Demonstrated proficiency in C/C++, pointer-based APIs, widget/property design, and regression-oriented fixes, aligning with business value goals of faster UI iteration and stronger stability.
5 Commits • 2 Features
Jan 1, 2026January 2026 (2026-01) monthly contributions for lvgl/lvgl focused on UI widget enhancements and stability hardening. Delivered Textarea and Dropdown widget improvements with static/non-static setters and image-based symbol sources, along with a bug fix to the style property retrieval path. Outcomes include improved UI configurability, reduced runtime risk, and a smoother API for widget configuration across projects. Demonstrated proficiency in C/C++, pointer-based APIs, widget/property design, and regression-oriented fixes, aligning with business value goals of faster UI iteration and stronger stability.
January 2026
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for lvgl/lvgl. Key feature delivered: Evdev Input—Create device from an existing file descriptor. This enables creating evdev input devices using pre-opened FDs, facilitating integration in embedded and pre-configured environments while preserving backward compatibility. The lv_evdev_create API was refactored to delegate to the new lv_evdev_create_fd, consolidating initialization paths and reducing duplication. Impact and accomplishments: This change lowers integration friction for customers who manage input device lifecycles externally and need to reuse existing file descriptors. It simplifies device adoption in diverse workflows and lays groundwork for more flexible input handling without breaking existing users. Technologies/skills demonstrated: C programming, evdev subsystem integration, file descriptor management, backward-compatible API refactoring, disciplined commit-driven development. Note: No major bugs fixed were documented for lvgl/lvgl in August 2025 based on the provided data.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for lvgl/lvgl. Key feature delivered: Evdev Input—Create device from an existing file descriptor. This enables creating evdev input devices using pre-opened FDs, facilitating integration in embedded and pre-configured environments while preserving backward compatibility. The lv_evdev_create API was refactored to delegate to the new lv_evdev_create_fd, consolidating initialization paths and reducing duplication. Impact and accomplishments: This change lowers integration friction for customers who manage input device lifecycles externally and need to reuse existing file descriptors. It simplifies device adoption in diverse workflows and lays groundwork for more flexible input handling without breaking existing users. Technologies/skills demonstrated: C programming, evdev subsystem integration, file descriptor management, backward-compatible API refactoring, disciplined commit-driven development. Note: No major bugs fixed were documented for lvgl/lvgl in August 2025 based on the provided data.
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary focusing on key accomplishments and business value. Key focus: delivering a configurable rendering option for LVGL's Chart Widget to support extended drawing sizes, enabling more flexible and accurate visualizations and reducing manual workarounds for complex charts.
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary focusing on key accomplishments and business value. Key focus: delivering a configurable rendering option for LVGL's Chart Widget to support extended drawing sizes, enabling more flexible and accurate visualizations and reducing manual workarounds for complex charts.
July 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 - lvgl/lvgl: Focused on improving input device timing and scroll accuracy to deliver a smoother scrolling experience. Refactored the indev module to decouple scroll momentum decay from the main read loop, added precise timestamp handling for input events, and leveraged a history of recent input vectors to enhance scroll throw calculations, resulting in improved responsiveness and accuracy across devices. Commit: c04a508d3501dd87847118abe87a823406a982c6.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 - lvgl/lvgl: Focused on improving input device timing and scroll accuracy to deliver a smoother scrolling experience. Refactored the indev module to decouple scroll momentum decay from the main read loop, added precise timestamp handling for input events, and leveraged a history of recent input vectors to enhance scroll throw calculations, resulting in improved responsiveness and accuracy across devices. Commit: c04a508d3501dd87847118abe87a823406a982c6.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for lvgl/lvgl focused on delivering barcode encoding enhancements. Key deliverable: raw Code 128 encoding support in the barcode module, enabling GS1 or raw encodings and updating generation logic for both paths. This strengthens the library's flexibility for inventory and scanning use cases and aligns with business goals of interoperability and ease of integration.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for lvgl/lvgl focused on delivering barcode encoding enhancements. Key deliverable: raw Code 128 encoding support in the barcode module, enabling GS1 or raw encodings and updating generation logic for both paths. This strengthens the library's flexibility for inventory and scanning use cases and aligns with business goals of interoperability and ease of integration.
May 2025
October 2024
1 Commits
Oct 1, 2024October 2024 focused on strengthening LVGL packaging reliability by correcting lvgl.pc placement during the build. This change ensures lvgl.pc is generated in CMAKE_CURRENT_BINARY_DIR, improving packaging, linking, and dependency management, and reducing downstream packaging risk.
October 2024
1 Commits
Oct 1, 2024October 2024 focused on strengthening LVGL packaging reliability by correcting lvgl.pc placement during the build. This change ensures lvgl.pc is generated in CMAKE_CURRENT_BINARY_DIR, improving packaging, linking, and dependency management, and reducing downstream packaging risk.
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Quality Metrics
Correctness95.0%
Maintainability92.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
Ccmake
Technical Skills
C ProgrammingC programmingDriver DevelopmentEmbedded SystemsEmbedded systemsLibrary DevelopmentUI DevelopmentUI developmentbuild systemscmakeembedded systemswidget development
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