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One way to simplify this is to use the DAC arrangement, instead of switching in resistor dividers like here, you would put a bunch of resistors in series and in between each resistor have a switch to ground. All resistors can be the same value, in that case, and the analog values would end up more consistent.
I've been meaning to make something similar to this for a very long time, for exactly the same reason. I like your DIP switch idea. Awesome!
Cool clock, Ahmed.
It probably isn't an issue with your setup, but you might consider wiring those LED strips differently.Especially since your strips wrap around and go back to the start, you could have positive lead come from one end, and the negative lead come from the other end.The LED are in small parallel groups along the strips, but the power rails will get farther and farther away from the source the farther down the strip you go.Just a thought.
An alternative to masking off the door handle is to just temporarily remove it. Usually just a phillips screwdriver and two screws and pull the knobs apart.
Super Simple CNC Ballpoint Plotter Pen
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