In embedded development, an oscilloscope is an essential debugging tool that allows developers to visually observe the signal waveforms in circuits, helping them quickly locate issues. However, traditional oscilloscopes are expensive and bulky, making them unsuitable for portable development. The ESP32, as a powerful Wi-Fi microcontroller, has abundant GPIO resources and strong processing capability, making it an ideal choice for creating a small, portable oscilloscope.
Introduction to ESP32_oscilloscope
The ESP32_oscilloscope library is based on the ESP32, providing developers with a simple and easy-to-use oscilloscope solution. Users do not need to purchase expensive oscilloscopes; they can simply connect the ESP32 to the circuit to easily observe signal waveforms for debugging.
Advantages of ESP32_oscilloscope
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• Low Cost: ESP32_oscilloscope is based on the ESP32, which is an inexpensive Wi-Fi microcontroller that can be easily purchased without the need for additional costly oscilloscopes.
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• Portability: The compact size of the ESP32 makes it convenient to carry, allowing users to debug anywhere.
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• Ease of Use: ESP32_oscilloscope provides a simple web user interface, enabling users to easily observe signal waveforms without installing additional software.
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• Flexible Expansion: ESP32_oscilloscope supports various GPIO signal inputs, allowing users to freely choose the signals they want to observe based on their needs.
Main Features of ESP32_oscilloscope
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• Signal Acquisition: ESP32_oscilloscope can read analog and digital signals through the GPIO of the ESP32.
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• Waveform Display: ESP32_oscilloscope displays the collected signal waveforms through a web user interface, making it convenient for users to observe and analyze.
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• Multi-channel Support: ESP32_oscilloscope supports simultaneous acquisition of multiple channel signals, allowing users to observe the relationships between different signals.
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• Data Export: ESP32_oscilloscope supports exporting collected data as CSV files for further analysis.
Steps to Use ESP32_oscilloscope
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1. Download the Project: Download the ESP32_oscilloscope project from GitHub: https://github.com/BojanJurca/Esp32_oscilloscope.
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2. Configure Wi-Fi: Configure the ESP32’s Wi-Fi SSID and password in the Esp32_servers_config.h file.
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3. Upload Code: Upload the code to the ESP32 development board.
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4. Access Web Interface: Use a browser to access the ESP32’s IP address (e.g., http://192.168.4.1) to reach the ESP32_oscilloscope web user interface.
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5. Select Signal Source: Choose the GPIO signal to observe in the web user interface.
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6. Observe Waveform: ESP32_oscilloscope will display the collected signal waveforms in the web user interface.
Application Scenarios of ESP32_oscilloscope
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• Circuit Debugging: ESP32_oscilloscope can help developers quickly locate issues in circuits, improving development efficiency.
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• Signal Analysis: ESP32_oscilloscope can be used to analyze various signal waveforms, such as audio signals, sensor data, etc.
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• Educational Tool: ESP32_oscilloscope can serve as a teaching tool to help students learn about signal processing, electronic circuits, and more.
Conclusion
ESP32_oscilloscope provides developers with a simple, easy-to-use, and flexible oscilloscope solution, enabling them to easily observe and analyze signal waveforms in various application scenarios. Its low cost, portability, ease of use, and flexible expandability make it an indispensable debugging tool in embedded development.
Project Address: https://github.com/BojanJurca/Esp32_oscilloscope