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gpio_read(..) function call returns 2!!! #34

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nethomas1968 opened this issue Apr 12, 2023 · 1 comment

nethomas1968 commented Apr 12, 2023

Hi,
What does it mean when gpio_read(..) returns 2?
Specifically, gpio_read(EPD_BUSY);

The source code comments implies that it can only return values 0 or 1.

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nethomas1968 commented Apr 12, 2023

So, it looks like the function gpio_read really returns zero for low, and non-zero for high.

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