ESP32 or Wemos D1 R32 - ILI9486 4"

[pawelmielnik]

Hi Calvin Hass and M Hotchin, I used your src to run 9486 on ArduinoMega and ESP32 and Wemos. On Mega everything is ok. On ESP32 I have "blank screen" serial port shows communication. On Wemos screen is also blank, but on serial port showes rubbish In cpp i changed the analogWrite LCD_BL to digitalWrite, it doesn't help at all. Have you ever met such issues. Hardware is ok, runs on other applications. Pawel,

[StefanKellerAC]

I had a white screen with a too high SPI_FREQUENCY in Setup11_RPi_touch_ILI9486 with an ESP32, an 3.5 inch Raspi Display (from ELEGOO) and ILI9486_DRIVER with #define SPI_FREQUENCY 15000000 it works

[Mega-mania]

Great,

Thanks for your response. I was in a tough spot, but eventually decided to code my own very low ram fast gui which is working with 356 bytes of ram with menus, responding buttons, layering etc. Refreshing is by group, which is not as neat and elegant as others, but good enough for my use.

Kind regards,

Teo

On Friday, January 21, 2022, StefanKellerAC @.***> wrote:

I had a white screen with a too high SPI_FREQUENCY in Setup11_RPi_touch_ILI9486 with an ESP32, an 3.5 inch Raspi Display (from ELEGOO) and ILI9486_DRIVER with #define SPI_FREQUENCY 15000000 it works

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