
Aytürk Düzen developed and enhanced Bluetooth and embedded systems features across the nrfconnect/sdk-nrf and nrfconnect/sdk-nrfxlib repositories, focusing on hardware integration, configuration management, and power optimization. He implemented board support and overlay configurations for new Nordic hardware, enabling reliable Bluetooth sample operation and streamlined validation. Using C, YAML, and cmake, Aytürk generalized test infrastructure for multi-core boards, improved power management benchmarks, and synchronized manifest versioning for traceability. His work addressed conditional compilation, device configuration, and firmware development, resulting in robust, maintainable solutions that improved build stability, hardware compatibility, and energy efficiency across evolving Nordic Semiconductor platforms.
March 2026 monthly summary for sdk-nrf: Delivered Bluetooth sample enhancements for two boards, nRF54ls05b and nRF54lm20b, improving hardware compatibility and test coverage across platforms. The work tightens platform support, accelerates customer integration, and demonstrates strong collaboration between hardware configuration, overlays, and YAML tooling.
March 2026 monthly summary for sdk-nrf: Delivered Bluetooth sample enhancements for two boards, nRF54ls05b and nRF54lm20b, improving hardware compatibility and test coverage across platforms. The work tightens platform support, accelerates customer integration, and demonstrates strong collaboration between hardware configuration, overlays, and YAML tooling.
February 2026 monthly summary for nrfconnect/sdk-nrf: Delivered a focused feature enabling the Bluetooth Sample on the nRF54ls05b via an overlay configuration, ensuring proper aliasing for the event generator unit. This work strengthens sample reliability and accelerates hardware validation for the board family. No major bug fixes were reported in this period; the emphasis was on completing the overlay-based configuration and tightening integration with the existing sample framework.
February 2026 monthly summary for nrfconnect/sdk-nrf: Delivered a focused feature enabling the Bluetooth Sample on the nRF54ls05b via an overlay configuration, ensuring proper aliasing for the event generator unit. This work strengthens sample reliability and accelerates hardware validation for the board family. No major bug fixes were reported in this period; the emphasis was on completing the overlay-based configuration and tightening integration with the existing sample framework.
January 2026: Delivered two high-impact features for nrfconnect/sdk-nrfxlib, focusing on versioning integrity and communication efficiency. Ensured manifest versioning synchronization across MPSL Front-End and added LE Coded PHY support for periodic advertising in SoftDevice Controller. Both changes include traceable commits and changelog updates, enabling clearer release management and RAM/Distance estimation improvements.
January 2026: Delivered two high-impact features for nrfconnect/sdk-nrfxlib, focusing on versioning integrity and communication efficiency. Ensured manifest versioning synchronization across MPSL Front-End and added LE Coded PHY support for periodic advertising in SoftDevice Controller. Both changes include traceable commits and changelog updates, enabling clearer release management and RAM/Distance estimation improvements.
September 2025: Delivered Power Management Benchmark Enhancements for the nRF54H20 idle state in sdk-nrf. Implemented configuration-flag driven device power management enabling the radio core to optimize power during idle states, resulting in improved idle power benchmarks with minimal surface area. Commit d112a56de8c59df4861b4fb6a4b6cb8e7b736497.
September 2025: Delivered Power Management Benchmark Enhancements for the nRF54H20 idle state in sdk-nrf. Implemented configuration-flag driven device power management enabling the radio core to optimize power during idle states, resulting in improved idle power benchmarks with minimal surface area. Commit d112a56de8c59df4861b4fb6a4b6cb8e7b736497.
July 2025 monthly summary: Delivered NRF54lv10dk board support for the Bluetooth event_trigger sample on the nRF Connect SDK. This work added a new board configuration and introduced an EGU (Event Generation Unit) alias to the nRF54lv10a_cpuapp to enable hardware event triggering and ensure compatibility with the hardware. No major bugs were reported this month; the focus was on hardware integration, configuration accuracy, and test readiness. Outcome: improved hardware support for the NRF54 family, enabling smoother integration for customers and more reliable event-driven workflows.
July 2025 monthly summary: Delivered NRF54lv10dk board support for the Bluetooth event_trigger sample on the nRF Connect SDK. This work added a new board configuration and introduced an EGU (Event Generation Unit) alias to the nRF54lv10a_cpuapp to enable hardware event triggering and ensure compatibility with the hardware. No major bugs were reported this month; the focus was on hardware integration, configuration accuracy, and test readiness. Outcome: improved hardware support for the NRF54 family, enabling smoother integration for customers and more reliable event-driven workflows.
May 2025 monthly summary for nrfconnect/sdk-nrfxlib: Key features delivered include MPSL clock control enhancements and FEM manifest updates, with mandatory startup times across platforms and clarified HFCLK callbacks on nRF54L. Major bugs fixed include SoftDevice Controller flow control revert and termination assertion, with accompanying documentation for the new SoftDevice Controller revision. Overall impact: improved startup predictability, stability of SoftDevice interactions, and better alignment with future revisions, translating to lower risk and faster downstream integration. Technologies demonstrated: embedded C development, MPSL, HFCLK management, FEM manifest coordination, and version-controlled documentation.
May 2025 monthly summary for nrfconnect/sdk-nrfxlib: Key features delivered include MPSL clock control enhancements and FEM manifest updates, with mandatory startup times across platforms and clarified HFCLK callbacks on nRF54L. Major bugs fixed include SoftDevice Controller flow control revert and termination assertion, with accompanying documentation for the new SoftDevice Controller revision. Overall impact: improved startup predictability, stability of SoftDevice interactions, and better alignment with future revisions, translating to lower risk and faster downstream integration. Technologies demonstrated: embedded C development, MPSL, HFCLK management, FEM manifest coordination, and version-controlled documentation.
February 2025: Delivered NRF54H Series Conditional Compilation Fix for nrfconnect/sdk-nrfxlib. Corrected preprocessor directives in MPSL and SoftDevice Controller headers to reflect NRF54H_SERIES, enabling correct builds and runtime behavior for NRF54H hardware. This focused change reduces build failures and ensures proper hardware support across NRF54H targets.
February 2025: Delivered NRF54H Series Conditional Compilation Fix for nrfconnect/sdk-nrfxlib. Corrected preprocessor directives in MPSL and SoftDevice Controller headers to reflect NRF54H_SERIES, enabling correct builds and runtime behavior for NRF54H hardware. This focused change reduces build failures and ensures proper hardware support across NRF54H targets.
November 2024 monthly summary for telink-semi/zephyr: Focused on improving test infrastructure for Bluetooth across multi-core boards. Delivered a generalization of Bluetooth tester configuration by renaming board-specific config files to general names, enabling reuse across multi-core boards and simplifying maintenance of test configurations. This change reduces time spent on configuring tests for new boards and improves consistency across platforms. Commit 55bc3acf58f6a30dedc8a0e4ac8f32ba2c4c79e0 implements generic Bluetooth HCI IPC configurations.
November 2024 monthly summary for telink-semi/zephyr: Focused on improving test infrastructure for Bluetooth across multi-core boards. Delivered a generalization of Bluetooth tester configuration by renaming board-specific config files to general names, enabling reuse across multi-core boards and simplifying maintenance of test configurations. This change reduces time spent on configuring tests for new boards and improves consistency across platforms. Commit 55bc3acf58f6a30dedc8a0e4ac8f32ba2c4c79e0 implements generic Bluetooth HCI IPC configurations.

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