[SOLVED] Sscanf() not saving sting sections to variables

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@currydem23 You have to spend time to learn more about C++.

This is an array of 1 byte. That byte has all bits set to zero (it is an empty string with zero terminator '\0').

char str[] = "";

That means that this is not possible:

rc.toCharArray(str, str_len);

because you need some memory to store the data.

The ESP32 runs FreeRTOS. Using strtok() with a multitasking operating system is not a good idea.