Do you know how to protect the display?

[CiaoFox]

If I open the screen for a long time, I am afraid that there will be problems with the screen, but I don’t know how to protect the screen.
Have you considered using a timed shutdown to protect the screen?I want to listen your way about it.

[sdetweil]

@CiaoFox many of us use an infrared motion sensor (PIR) and turn off the screen when no one is around)…

some use radar devices (which use the PIR module) to detect movement
some use the camera of a webcam

[CiaoFox]

@sdetweil sounds good！But I can use infrared motion sensor on arduino only…maybe Im too noob…
anyway,thank you very much!

[sdetweil]

@CiaoFox the PIR sensor will wire up to the PI pins just fine

[CiaoFox]

@sdetweil I will try it,thank u much!

[sdetweil]

@CiaoFox

https://github.com/paviro/MMM-PIR-Sensor
and
https://github.com/mboskamp/MMM-PIR

[CiaoFox]

@sdetweil awesome!!thank you!!