Flickering screen runing Lesson 9 LVGL Servo Conctrol on CrowPanel 7.0"

lboue

Hello,

The screen flickers with this demo file: Flickering screen runing Lesson 9 LVGL Servo Conctrol on CrowPanel 7.0".
It's very unpleasant for the eyes.

CrowPanel-ESP32-Display-Course-File-main\CrowPanel-ESP32-Display-Course-File-main\CrowPanel_ESP32_Tutorial\Code\Lesson 9 LVGL Servo Conctrol\4.3-5-7inch\CrowPanel_ESP32_LVGL_Demo

Could you tell me how to correct this?

Regards

Elecrow

Hello @lboue ,
Please try changing the frequency rate to 14000000

lboue

@Elecrow
I change the frequency rate to 14000000 line 69:
cfg.freq_write = 16000000;
to
cfg.freq_write = 14000000;

But I always notice a flicker that I don't get with the desk lamp example.

Elecrow

Hello @lboue
I'm sorry I don't quite get it, could you please take a video to help us better understand the problem?