adelalfusail

Exactly I entered to ask this question the PPG wave is inverted put I thank the problem is coming from probe the red and infrared PD is not connected correctly...

did you fix this problem or not

Your mean problem that you did not update your files. protocentral is updated openview_pulseox.pde file and change it to if( CES_Pkt_Len == 10)

do you fix this problem or not

its not stable except when there is no light in the room