Heart rate sensor MAX30102

[richard]

i tried the arduino code again with the sensor attached to my finger with a rubber band , it works a bit better that way
do you have a stl model for an enclosure ? . its difficult to make any sense of wildly unstable readings

i'm thinking a ESP8285 M3 board would make a better platform and allow use of arduino libs if they can be proven to be adequate
ESP8285's these cut down esp8266's are very cheap and still have more processing power than a bucket full of pic chips they are quite happy to run on two aaa batteries and consume little energy if wifi not engaged