Heart rate sensor MAX30102

[Ioannis]

I double what Richard pointed.

Ioannis

[astanapane]

Thanks both for your kind reply.

I will find the way. I know it is quite difficult and options are limited to use Arduino.

[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

[astanapane]

Hi Richard,

once i have all the components (including the arduino board or ESP8285) then i will be ready to design the 3D cad model and printed.

I will order some arduino and ESP and check them out.

[Ioannis]

Use of such finger sensors need to have your finger cleaned from oil with alcohol (isoprop. alcohol or similar).

It is necessary for the sensors to keep working with consistency.

Ioannis

[richard]

thanks ioannis, with out the repeatable test conditions its all guess work

i might see if i can print this
https://www.thingiverse.com/thing:4395147

[Ioannis]

Interesting 3D print!

Ioannis