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random midi noise verification.

edited November -1 in Hardware
I've intentionally not wired a pull down resistor to my matrix rows. As a result, when a push a button it sends about 3 CC's on push, and the same in reverse order. Two of them overlap previous assignments, but one is unique.

What i want to double check for my own knowledge, is the pull down resistor required for the extra current drain off (per the wiki) - this is the kind of thing that would prevent the random midi noise from being generated yes? Additionally, comparing my results with what I'm expecting - would i still not get one unique event from the push down and the opposite on release?

Feel free to be as technical as necessary in the response.
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