I AM WATCHING

This idea came from the film Modern Times, in which human labor is extremely squeezed from machines that behave like supervisors.

This device installed in the workspace does a similar job. It sends a warning message to the worker when it can no longer detect people around. The message says,

"I AM WATCHING"

CODE

QUESTIONS

Why running this program slows the computer down?

How to set a fixed point for the "keyboard" to start typing or typing in backstage? (So the device can watch the worker without occupying the working computer)

How to make a button that turns on the device. (Cannot in the loop function otherwise it turns on repeatedly)

What is a pull-up button?

What does falling mean?