The Panda Timer is a portable object-detection timer designed to provide visual and audible alerts based on object presence and timer completion. The system was developed to monitor nearby objects using distance sensing technology while allowing users to select custom timing and display settings. Intended applications include household use, study or productivity timing, and general reminder or monitoring tasks where a simple and intuitive timing system is beneficial. The project uses several embedded system technologies working together to create a complete user experience. An ESP32 microcontroller manages system logic and communication between the ultrasonic distance sensor, OLED display, push-button controls, and passive buzzer. The HC-SR04 distance sensor continuously detects objects placed within a programmed range of 1–6 inches, while the OLED display provides timer and status information. Users can select between multiple timer durations and three brightness levels, allowing the system to adapt to different environments and preferences. One of the project’s main accomplishments was successfully integrating multiple hardware and software subsystems into a reliable portable device. A major challenge involved troubleshooting and redesigning portions of the hardware after the original PCB approach did not function as intended. The team adapted by revising the design and implementing a reliable working solution. Future improvements may include a custom enclosure redesign, additional timer modes, and expanded sensing capabilities.