I have a hob with the touch button but not responding enough. It's a Fujistu Siemens. The touch buttons are cover by aluminium case.
In the image above that is touch button. If I can say is a touch button, because only when the plate is pressed by any object the hob responds. I try to activate a button with my finger and it works but sometimes it does not work at all.
How can I just put normal switches or make the touch more sensitive? The buttons are powered by a pic16f886.
P.S. Can someone tell me what the heck is this? it is on every button.