Recently I made this circuit in real life: http://123d.circuits.io/circuits/681104-the-unnamed-circuit
as you can see, I use two buttons a double-input nor gate as it was recommended by an Arduino Guru and I almost totally understand why.
The thing is, my school has forbidden buttons from projects and I'm forced to use an eletricar Piezzo knockSensor.
I'd like to know recommendations:
can I still use the NorThingie , if yes should I change something since now they are piezzos? I have 1M resistors but should I use any other resistor other than those? (i'm electrophobic and I don't wanna burn something up) should I change something codewise? (the code of my project is in the website above, and I already know about the treshold and whatnot)
Thanks so much in advance, have a wonderfull geek day. 8)