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I'm trying designing a program that functions as a vending machine, and I think I've found a version that works but the only issue is that I'm required to add a waveform on my output. I'm attempting to track the frequency of items picked and displaying it in real time. Only thing is that's a bit beyond my current skill set. Any advice on where to start on that sort of idea? Something with recording when certain inputs are used from the output cluster maybe?
