International Journal of Innovative Research in Computer and Communication Engineering
ISSN Approved Journal | Impact factor: 8.771 | ESTD: 2013 | Follows UGC CARE Journal Norms and Guidelines
| Monthly, Peer-Reviewed, Refereed, Scholarly, Multidisciplinary and Open Access Journal | High Impact Factor 8.771 (Calculated by Google Scholar and Semantic Scholar | AI-Powered Research Tool | Indexing in all Major Database & Metadata, Citation Generator | Digital Object Identifier (DOI) |
| TITLE | Real-Time Digital Signal Processing Oscilloscope using ESP32 Microcontroller |
|---|---|
| ABSTRACT | The rapid growth of embedded systems has increased the need for compact and affordable test and measurement instruments. Conventional oscilloscopes are often expensive and bulky, making them unsuitable for students and small laboratories. This project aims to overcome these limitations by developing a Real-Time Digital Signal Processing Oscilloscope using the ESP32 microcontroller, which offers a low-cost and portable solution for basic signal analysis. In this system, analog signals are acquired using the inbuilt Analog-to-Digital Converter (ADC) of the ESP32. The sampled data is processed in real time using basic digital signal processing techniques such as scaling, filtering, and noise reduction. These operations help in improving the clarity and accuracy of the displayed waveform. The processed signal is then displayed on a TFT/LCD screen, allowing users to observe signal variations in real time. The proposed oscilloscope provides user-controlled settings such as time division and voltage division, enabling better visualization of different types of input signals. Triggering functionality is also included to stabilize repetitive waveforms. For data storage and further analysis, the system supports SD card logging, which allows captured waveforms to be saved and reviewed later. In addition to local display, the ESP32’s built-in Wi-Fi and Bluetooth capabilities enable wireless data transmission to external devices such as laptops or smartphones. This feature makes the system suitable for remote monitoring and debugging applications. Overall, the developed oscilloscope is well suited for educational use, embedded system testing, and field applications, while also providing practical exposure to real-time digital signal processing using microcontroller platforms. |
| AUTHOR | PROF. DR. MAHALINGA V MANDI, CHANDANA M S, KIRAN H N, SANJAY BUDNI Department of Electronics Communication and Engineering, Dr. Ambedkar Institute of Technology, Bengaluru, India |
| VOLUME | 177 |
| DOI | DOI: 10.15680/IJIRCCE.2025.1312053 |
| pdf/53_Real-Time Digital Signal Processing Oscilloscope using ESP32 Microcontroller.pdf | |
| KEYWORDS | |
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