The purpose of this project is to develop a portable, low-cost digital oscilloscope capable of displaying and analyzing electrical signals in real time. The system is intended for use by students, hobbyists, and engineers who need a compact instrument for observing waveforms, measuring signal characteristics, and exporting captured data for later analysis. The oscilloscope supports multiple input channels, allowing users to monitor and compare signals simultaneously. The system is built around a Teensy 4.1 microcontroller, a MAX11190 dual-channel analog-to-digital converter, and a 3.2-inch ILI9341 TFT display. The analog front end conditions incoming probe signals before they are digitized by the ADC and processed by the microcontroller. Real-time waveform rendering, trigger control, voltage and time scaling, peak-to-peak measurements, and data export to a microSD card are implemented through custom embedded software. The system samples signals at a target rate of 200 kHz per channel and provides an interactive user interface through rotary encoders and pushbuttons. One of the most significant accomplishments of the project was successfully integrating simultaneous dual-channel acquisition, waveform visualization, and external data storage into a compact embedded platform. Another achievement was implementing configurable oscilloscope features such as trigger selection, adjustable voltage and time scales, and waveform measurement tools. Future improvements include calibration of the analog front end for increased measurement accuracy, implementation of more advanced triggering modes, enhanced display graphics with grid overlays and cursors, and optimization of the acquisition pipeline to support even higher sampling rates and additional measurement functions.