Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I have used the Arduino Max30100 library sucessfully on MAX30100 chips from two other suppliers. When I connect the M5 Heart Rate Unit (also MAX30100 chip), the only thing printed on the serial monitor is "initia". Am I missing something?