arduino drum module how many inputs with velocity without problems

Hello .I am aware of the diy electronic drums with arduino and software like ez drummer but I am confused as to how many triggers with velocity you can have with an arduino mega for example, without problems :smiley_cat: .

The usability depends on how long latency is acceptable. I would guess 1 or 2 ms since the other equipment adds its own latency. A analog read takes 111us so if you scan all analog inputs (6, 8 or 16 depending on arduino model) you have pretty much used up the time available.