I just found a good article on how it works if anyone is interested (I think they are using the exact same sensor that is in the Form2):
[edit] Some more info and diagram (trying to think of ways to trick the sensor…):
I just found a good article on how it works if anyone is interested (I think they are using the exact same sensor that is in the Form2):
[edit] Some more info and diagram (trying to think of ways to trick the sensor…):