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xcoder123 / MAX30100

Driver for MAX30100 using arduino
MIT License
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Doubt About SPO2 calculation method #6

Open FelipeMdeO opened 5 years ago

FelipeMdeO commented 5 years ago

I have one doubt... To calculate SPO2 you are using the equations:

Screenshot 2019-06-10 22 25 01

But looking for TI docs (who you use as reference), we have:

Screenshot 2019-06-10 22 27 15

Pay attention that the variable is R'.

Looking for TI .c code example (slaa468.zip): [(http://www.ti.com/lit/zip/slaa458)] Screenshot 2019-06-10 22 28 55

I don't know, but I think that you mixed Rs. Because TI implementation no uses linear equation.

The equation used by you: Screenshot 2019-06-10 22 32 08

And R is: Screenshot 2019-06-10 22 34 01

Can you confirm, please, the font of the information: Screenshot 2019-06-10 22 39 55