This system enables data transfer between two boards (ESP32 and Arduino UNO) within the Arduino environment without the need for physical or wireless connections, by utilizing a log file (logs.txt).
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1. Arduino UNO R3 Board 
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2. ESP32 Dev Kit V1 Board 
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This system leverages Python to retrieve data from the ESP32 and logs it into a log file (
logs.txt). -
Subsequently, the Arduino UNO R3 reads the data from this log file and processes it accordingly.
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In the provided example code, the ESP32 scans for available networks and logs the data.
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The Arduino UNO R3 then reads this data, and if it detects any network information, it activates the integrated LED.
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This is a basic demonstration, but the concept can be extended to more complex projects.
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Essentially, it simulates a physical connection between the two boards without them being physically or wirelessly connected.
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You can adapt this system to work with any boards and integrate it into any of your projects.