@saeedsadati (1) Well, get 4 GY-MAX30100s and perhaps also GY30105, before talking to me again. (2) Talking 30100 is a waste of time, beside damaging my reputation. That is why I earlier suggested you to write a max30100 only answer. (2) Walk, don run:
youtube.com/watch?v=owq7hgzna3E. Have a nice locking down weekend. Cheers.