I guess you have this one

Name: max30102 image.png Views: 3832 Size: 393.0 KB

https://www.teachmemicro.com/max3010...r-for-arduino/

I also have 2 of those, but in the schematic the input voltage is 3.3V to 5V.

Name: max30102 image 2.png Views: 3918 Size: 535.1 KB

or you are talking about the logic level? So i also need to take care about it and supply the PIC with 3.3V.