这个计算如何工作？

Question

I am working with dmx that gives me values from 0 to 255 and the motor moves from -270 to 270. I need the calculation that this program uses.

(i am using lua)

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Answer 1

Not an expert of your technology, but from your images, it seems that you have a linear function from [0, 255] -> [-270, 270]

So I guess the value 129 gives you a motor value of 2,1 approximately.

I let you check this and process the other values accordingly. If needed, draw a function graph to see the shape of your function.

Answer 2

Luke100000 gave the following formulas: 1- dmx / 255 * 540 - 270 = motor 2- motor (x) = 9/138176 x ^ 2 + 290313/138176 x - 270

the first if I get a value of 255 gives me 270 the second if I get a value of 255 it gives me 265.7724569868085

so the first would be the most accurate.

Thanks for the help.