May 2025 monthly summary for plos-clan/CoolPotOS. Delivered Build System Quality and Compatibility Enhancements to improve code quality, build reliability, and cross-environment portability. Implemented stricter warning checks and adjusted assembly flags to align with the build system, enabling earlier detection of issues and smoother CI integration. This work was committed in f6215d276f8ca987ad912c2fc3134756d5896f5f with message 构建更新, and lays groundwork for future quality gates. Major bugs fixed: None documented for this repo this month. Overall impact: Increased build confidence, reduced risk of hidden build errors, and improved maintainability and onboarding for new contributors. Technologies/skills demonstrated: Build tooling, compiler and linker flag tuning, strict warning configurations, cross-environment build compatibility, and collaboration with CI/CD processes.

In April 2025, the CoolPotOS project delivered focused hardware-driver improvements and codebase cleanup, reinforcing reliability and maintainability for embedded control on PCA9685-driven PWM and servo actuation.

Monthly summary for 2025-03: PCA9685 PWM driver enhancements in plos-clan/CoolPotOS to improve timing accuracy and servo control. Key changes include refining the PWM frequency prescale calculation for precise timing, removing unnecessary floor usage and the math.h dependency, eliminating a 5ms sleep delay to reduce latency, and updating PWM/servo pulse handling to support integer duty cycles and correct microsecond-to-PWM scaling. These improvements reduce jitter and latency, simplify builds, and improve hardware control fidelity for actuators. Implemented across four commits, delivering tangible business value: higher reliability, faster response in real-time control paths, and easier maintainability of the driver. Demonstrated expertise in embedded timing, low-level driver development, and real-time systems integration.

February 2025 performance summary for plos-clan/CoolPotOS and Mdr-C-Tutorial/C. Focused on hardening the I2C subsystem and expanding PWM control capabilities while updating documentation structure. Key deliverables include a complete IIC Driver Core Refactor and Protocol Groundwork with an API-driven interface (start/stop/send/receive), camelCase naming, LIST_IMPLEMENTATION support, and groundwork for device enumeration; and the PCA9685 I2C PWM Driver with init/probe/remove/read/write operations and APIs to set PWM frequency, duty cycle, and servo pulse widths. Documentation assets were updated to reflect the new docs/layout (CMSIS and STM32 visuals). No major bugs recorded this month; primary business value came from architectural improvements, maintainability, and faster future device integration. Technologies demonstrated include C, I2C protocol handling, driver architecture and API design, code refactoring, and documentation practices.

December 2024 performance summary for plos-clan/CoolPotOS IIC driver work. Delivered core initialization and module setup, migrated to a dedicated iic_core.c with removal of legacy iic.c, and implemented CRC-8 based data integrity checks with a separate CRC utility, alongside API and type-safety improvements across the IIC stack. These changes reduce data corruption risk, improve kernel startup reliability, and lay groundwork for continued I2C feature work in 2025.