Worked on the meshtastic/firmware repository to deliver hardware-level user experience improvements for the tlora_v1 variant, focusing on embedded systems and firmware development using C++. Introduced LED_BUILTIN support, standardizing built-in LED control to enable consistent user-facing LED management across device variants. This feature enhanced hardware abstraction and streamlined customization, reducing onboarding time for developers and improving feedback mechanisms for end-users. The implementation emphasized maintainability and code hygiene, with explicit, traceable commits that improved the overall developer experience. No bugs were fixed during this period, but the work contributed to clearer commit history and better long-term maintainability of the firmware.