Worked on the kholia/zephyr repository to enhance hardware support and code maintainability for embedded platforms. Delivered two features, including enabling the I2C2 peripheral on the SLSTK3701A by updating the device tree and board configuration for the EFM32GG11, and refactored the Raspberry Pi Pico device tree to use dt-bindings headers and override.dtsi for improved Zephyr DTS compliance. Addressed code quality by removing a redundant error check in the ina219 driver initialization, simplifying the logic without altering behavior. Utilized C programming, device tree management, and driver development skills to deliver faster, more reliable feature integration and maintainable code.