Worked on the zephyr-testing repository to enhance sensor accuracy and board configuration reliability within embedded systems. Focused on targeted bug fixes, addressing a sign-extension issue in the TSL2591 sensor driver by casting variables to uint32_t in C, which improved the integrity of light calculations. Also corrected documentation and device tree typos for QDEC overlays and the Adafruit Metro RP2350 board, ensuring clearer board configurations and reducing onboarding friction. Leveraged expertise in device drivers, device tree, and testing to align tests and samples with updated configurations, ultimately supporting more reliable deployments and streamlining future development and debugging processes for the project.