'how to add fixed step knob in GUI using processing? [closed]
I'm developing a GUI for my Arduino Mega 2560 board. I need a fixed step knob with 4 values. I've used control P5 library but the knob range in that is continuous.
Suggest me how to get fixed step knob with code. Whenever i press knob with my mouse near the tick mark on knob it should change to that value BTW I've no idea of java programming just started learning.
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