I googled already a bit about it, but I didn’t really find any satisfying answers about how exactly the active pens work. I know that they transmit some kind of radiation/signals to the metal mesh (I guess) of the digitizer.
I want to know, if anybody knows what type of frequency/signal they use for that and how the pen turns on and off. Is it sending all the time or just when I move it? I’m really interested in how it works exactly, but everywhere it’s just written that they send signals to the display and then it works. That doesn’t really satisfy my interest