Some useful links:
https://github.com/xcoder123/MAX30100
https://github.com/sparkfun/SparkFun_MAX3010x_Sensor_Library
https://www.sparkfun.com/products/14045
Also lots of Max30100 boards on Amazon, prices all over the place.
@ClearMemory041063 started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Some useful links:
https://github.com/xcoder123/MAX30100
https://github.com/sparkfun/SparkFun_MAX3010x_Sensor_Library
https://www.sparkfun.com/products/14045
Also lots of Max30100 boards on Amazon, prices all over the place.