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Forum Post: RE: AFE4404: motion and ambient light changes

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Hi Jayue, The PPG signal's quality will differ from user to user, so a calibration routine is needed that dynamically adjust the AFE's parameters to acquire a better signal from any given individual. The highlighted paragraphs talks about all the factors that should be considered while writing the calibration routine such a change in ambient light, disturbance due to motion, DC of the received signal etc. Regards, Prabin

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