During December 2024, Lin Chen focused on improving timer-driven functionality for ESP32 S3 boards within the espressif/arduino-esp32 repository. Addressing a reliability issue, Lin fixed a bug in the RepeatTimer component by modifying the BTN_STOP_ALARM pin mode from INPUT to INPUT_PULLUP, ensuring the timer no longer stopped immediately after starting. This adjustment improved task scheduling and overall stability for embedded systems using these boards. Lin’s work leveraged expertise in C++, embedded systems, and microcontroller programming, demonstrating a targeted approach to hardware-software integration. The contribution was focused and technical, addressing a specific pain point in IoT device reliability.