DIS08070H : CrowPanel 7.0" HMI ESP32 Display - Screensaver

pmarkiew

Hi,
I am looking for the proper way to turn off/blank the display to prevent LCD burn in. I use SquareLine studio to generate my Arduino code. I do turn off the backlight, but i don't think that is enough.
Any help would be appreciated.
Thanks

• Peter

tinusium

I tried this with mine and it works. And starts up when you reboot (or attach a pin to it):

#include <esp_sleep.h>

void shutdown(lv_event_t * e)
{
    esp_deep_sleep_start();
}

[Help edited into a code block]

pmarkiew

Thanks for the reply, I am looking to just blank the LCD to prevent any kind of burn in of the display leaving the processor running.

rjmoragaramirez

@pmarkiew said:
Hi,
I am looking for the proper way to turn off/blank the display to prevent LCD burn in. I use SquareLine studio to generate my Arduino code. I do turn off the backlight, but i don't think that is enough.
Any help would be appreciated.
Thanks

• Peter

Hi, I have not been able to get my screen to turn off. I read here that you did. How did you do it? I have tried several ways and have not succeeded. I have a CrowPanel 7.0” HMI ESP32 Display. Could you help me please.

pmarkiew

#define BACKLIGHT 2
//In setup()
pinMode(BACKLIGHT, OUTPUT); // Initialize backlight pin

digitalWrite(BACKLIGHT, LOW);  //Off
digitalWrite(BACKLIGHT, HIGH); //On

[Help edited into a code block]

danielcastrop

Is there a way to change the screen light with tft.setbrightness? I am putting the function in ui_events.c and it does not recognize it
I also tried with the pinmode(BACKLIGHT, OUTPUT) way and it doesn't recognize "backlight"

pmarkiew

Change BACKLIGHT to 2
The pound sign # didn't show up in front of the "define" statement. should be : #define BACKLIGHT 2