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Continue to ChatESP32 Arduino FAT file system: Checking if file exists https://techtutorialsx.com/2018/10/11/esp32-arduino-fat-file-system-checking-if-file-exists/
ESP32 Arduino FAT file system: Checking if file exists https://techtutorialsx.com/2018/10/11/esp32-arduino-fat-file-system-checking-if-file-exists/