ESP32+ILI9341 problem with TFT_RST=-1

[andrey-belokon]

Hi

When reset pin of ILI9341 connected to some ESP32 pin and it defined in TFT_RST all working as expected. But when I try to set TFT_RST to -1 nothing to display. I was try to connect reset pin of ILI9341 to +3.3v, to EN pin of ESP32 board, try RC 10k+0.1u - same result - empty screen.
Is it possible to use ILI9341+ESP32 with TFT_RST=-1 ? For me, this is critical because there are not enough ESP2 pins.

Thank you

[TangerineDreamer]

Hi andrey,
i looked at my user setup and see that:

#define TFT_RST -1 // Set TFT_RST to -1 if display RESET is connected to ESP32 board RST
maybe you should try with that :)

[andrey-belokon]

Well, but where is RST on the ESP32 board? I can't find it.

[Frank-Bemelman]

You could try the EN pin. Never tried myself..
Or a classic power-on-reset ciruit.

[TangerineDreamer]

Sorry for my bad, i reproduced silly things written,
I think : #define TFT_RST -1 means RST goes to 3,3V,
sure TFT_RST=-1 should be written TFT_RST -1