For the circuit above, can anyone tell me what my sketch is going to look like? I don't have much experience with programming the arduino, so i'm not sure how to write it. But I think that silverware passing through would create it's own "signature" of code. I need a way for arduino to recognize that signature, so I can tell it to flash lights and sound a buzzer when it does recognize it. I think this one is probably best suited for my application, and easier to do for how much I know.
But I like the challenge of figuring out how to make this one work too:
I want to mess around with all the variables, to see what I can come up with. The battery voltage, size of the batteries in relation to current, a variable capacitor, and different sizes and configurations of coils. To me that just seems like a whole barrel of fun and learning! haha
Also, is it possible to do some kind of fancy PWM coding to generate a sine wave directly from the arduino??