Old school Easter eggs.

Introduce .

Here you can set the display type: Neopixel-LCD Nokia 5110-LCD OLED,

With Neopixel: can change brightness to save electricity and reduce glare.

With Nokia 5110 LCD (84×48) -LCD OLED (218×64): Can change the contrast. (not supported on version 2.4.1)

After finishing Click “Save”, you will see Neopixel change the brightness, or change the contrast for Nokia 5110 LCD -LCD OLED.

At the same time, a success message appears in the status box at the bottom.