Team 03 Dual-Channel XY Oscilloscope is a student-designed digital oscilloscope intended for basic signal measurement, comparison, and visualization in an educational lab setting. The system lets a user connect two input signals, view them simultaneously, adjust time and voltage scaling, pause the display, and use comparison modes such as Channel 1 minus Channel 2 and XY plotting. The system uses separate blocks for signal conditioning, acquisition and processing, user input, display rendering, power regulation, and enclosure integration. The XY display mode plots one channel against the other rather than plotting voltage against time, which makes it useful for comparing phase, frequency relationships, and Lissajous-style patterns between two signals. A future extension of this idea would be using XY-style plotting as the basis for visualizing more complex generated shapes, including simple projected 3D figures. The main challenges were coordinating acquisition, processing, and display timing while preserving analog signal fidelity. Future improvements would focus on calibration, analog front-end refinement, enclosure polish, and higher display update performance.