The length is 32 hexadecimal digits + four hyphens = 36 characters. Note that the hexadecimal digits are all lower case (by specification). The user may convert this to upper case if needed. The 0.1.1 ...
Make sure that ESP32 board version is 2.0.14. This is crucial, because this library contains pre-compiled files. Turn on C++17 support for Arduino. Download and import library into Arduino IDE. Choose ...
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