RS232 Data Transfer to PC with MATLAB-Based Oscilloscope Implementation

This MATLAB program implements oscilloscope functionality by capturing data transmitted from a microcontroller to a PC via RS232 communication. The system employs a microcontroller as a data acquisition unit that samples various signals and transmits them to the PC through serial communication. The MATLAB implementation utilizes serial port object creation (using serial or serialport functions) with proper baud rate configuration to establish reliable data streaming. Upon receiving the data stream, MATLAB processes the incoming bytes through buffer management and parsing algorithms, converting raw serial data into plottable voltage values. The program then generates real-time graphical displays using MATLAB's plotting functions (such as plot, subplot, or animatedline) with appropriate sampling rate synchronization and axis scaling. This virtual oscilloscope solution enables users to analyze and interpret acquired data with waveform visualization capabilities, providing insights through features like time-domain analysis, peak detection, and signal measurement. The application finds utility across various industrial and scientific domains including electronic engineering (for circuit debugging), mechanical engineering (for vibration analysis), and biomedical engineering (for physiological signal monitoring), with extensible architecture allowing customization for specific sampling requirements and signal processing algorithms.