getchar() or similar?

[al3x-h]

Hi, I need to a function to block until the user hits the keyboard. From my brief search, it seems like

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getchar/fgets

are good candidates. I've had little success with

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getchar

and

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fgets

even though the code compiles, it seems like they don't really work. I notice that stdin has been redirected, so in theory

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getchar

should work? Has anyone been able to get any of the stdin functions to work? Or is there a way to make API calls for UART0 (which I believe is used for printf) so I can use the USB-Serial interface on my dev board?

[ESP_Sprite]

If I recall correctly, standard serial IO is non-blocking on the ESP32, meaning getchar() always immediately returns. Is that what you're seeing?