apache/mynewt-core
Oct 2024 – Sep 2025
3 Months active
Languages Used
YAMLC
Technical Skills
Configuration ManagementBuild SystemsC ProgrammingEmbedded SystemsLog ManagementMemory Management
Andrzej Kaczmarek
PROFILE
Andrzej Kaczmarek
Andrzej Kaczmarek contributed to apache/mynewt-core and espressif/esp-nimble, focusing on embedded systems, C programming, and configuration management. He enabled default floating-point support in syscfg.yml to prevent regressions on FP-dependent platforms and optimized configuration saves by introducing a configurable duplicate check, improving write throughput. Andrzej enhanced runtime diagnostics by extending assert callbacks and stabilized logging through careful memory management. He updated the Nordic nrfx library and aligned ADC driver APIs, ensuring compatibility with evolving hardware features. His work demonstrated a deep understanding of system programming, balancing performance, reliability, and maintainability across firmware, drivers, and build systems.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
9Total
Bugs
4
Commits
9
Features
4
Lines of code
123
Activity Months3
Your Network
40 people
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered a critical Nordic nrfx library update and API alignment in apache/mynewt-core, stabilizing ADC interactions with the latest Nordic features and setting up a smoother upgrade path for future MCU driver changes.
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered a critical Nordic nrfx library update and API alignment in apache/mynewt-core, stabilizing ADC interactions with the latest Nordic features and setting up a smoother upgrade path for future MCU driver changes.
September 2025
November 2024
7 Commits • 3 Features
Nov 1, 2024November 2024 performance highlights across apache/mynewt-core and espressif/esp-nimble, focused on stability, performance, and debugging capabilities. Delivered targeted features and fixes with clear business value: faster, configurable saves; broader CMSIS DSP support; enhanced runtime diagnostics; and corrected messaging paths to reduce risk in production deployments. The changes improve deployment reliability, developer velocity, and platform compatibility, enabling safer feature iterations and more robust customer deployments.
November 2024
7 Commits • 3 Features
Nov 1, 2024November 2024 performance highlights across apache/mynewt-core and espressif/esp-nimble, focused on stability, performance, and debugging capabilities. Delivered targeted features and fixes with clear business value: faster, configurable saves; broader CMSIS DSP support; enhanced runtime diagnostics; and corrected messaging paths to reduce risk in production deployments. The changes improve deployment reliability, developer velocity, and platform compatibility, enabling safer feature iterations and more robust customer deployments.
October 2024
1 Commits
Oct 1, 2024Month: 2024-10 — Key work in apache/mynewt-core focused on ensuring floating-point support is reliably enabled by default. A bug fix updates the default value for CONFIG_FLOAT_SUPPORT in syscfg.yml to enable FP support by default, preventing FP arithmetic regressions on FP-dependent platforms. The change is implemented in commit 7980a6a5b990fdd0a56cba000cc17e6fb0751432 with message 'sys/config: Fix default CONFIG_FLOAT_SUPPORT value'.
1 Commits
Oct 1, 2024Month: 2024-10 — Key work in apache/mynewt-core focused on ensuring floating-point support is reliably enabled by default. A bug fix updates the default value for CONFIG_FLOAT_SUPPORT in syscfg.yml to enable FP support by default, preventing FP arithmetic regressions on FP-dependent platforms. The change is implemented in commit 7980a6a5b990fdd0a56cba000cc17e6fb0751432 with message 'sys/config: Fix default CONFIG_FLOAT_SUPPORT value'.
October 2024
Activity
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Quality Metrics
Correctness89.0%
Maintainability89.0%
Architecture84.4%
Performance82.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
CYAML
Technical Skills
Bluetooth Low Energy (BLE)Build SystemsC ProgrammingConfiguration ManagementDriver DevelopmentEmbedded SystemsFirmware DevelopmentLog ManagementMemory ManagementOperating SystemsSystem Programming
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
espressif/esp-nimble
Nov 2024 – Nov 2024
1 Month active
Languages Used
C
Technical Skills
Bluetooth Low Energy (BLE)Embedded SystemsMemory Management