I've got some question regarding which GPIO to use and which not to use.
I am using the ESP32 WROOM 32 with 30 GPIOs.
I don't have GPIO 6 to 11 so I won't have to worry about those.
And I read that GPIO 34-39 are inputs only and can't generate PWM.
I want to use the following library for a LED display: https://github.com/NeoCat/ESP32-P3RGB64x32MatrixPanel
As you can see, the predefined pins are: 12, 15, 16, 17, 18, 21, 22, 23, 25, 26, 27, 32, 33.
From what I've read GPIO 16/17 are used for PSRAM.
GPIO 0, 2 and 12 as some sort of bootstrapping pin.
I haven't found anything about GPIO 3 and I don't know what's up with him.
My question is, after reading all I've written, can you find some conflict or some pins that I should not use ?
Thank you !