When updating temperature data, display flicker
When updating temperature data, display flicker

In the video, you can see that the green numbers are constantly refreshing, so visually you will feel that they are being erased and redrawn, causing flickering.

But when the color is only set to red, the number will not flash, and other colors will flash.

 

Attempts to adjust the PWM frequency and duty cycle have not taken effect.

The data refresh from 10ms once to 5000ms once did not improve.