Dear All,
I am working on a project at home which involves getting a smart card to control a circuit. Here is the what I want to do:
I want to make a device that tells you if you are pressing the correct pressure pad. The pads are made of Piezo-film and when the wrong one is pressed or not pressed a small beeping sound is emmited. When only the correct pressure pad(s) is pressed, the beeping stops. This is to be controlled by a smart card. When the card is inserted it will tell the device which pressure pads are supposed to be pressed. Oh, it also has to be quite small.
My problem is that I don't know what components to use or how to wire the device correctly. If anybody has a solution or part solution, I would be very greatfull.
Sincerly,
Steven MacDonald