Here is video recorded, exactly 60 seconds, reported HR is 57-61 but if you count all the beats drawn it is actually 70 https://streamable.com/vvulja
Also I tried Cardiograph android app https://play.google.com/store/apps/detaiĀls?id=com.macropinch.hydra.android on my phone and it matches what my other watches/fitness trackers show. I disabled network before starting it as some people in reviews claim that showing ads make it less relible. For me it worked pretty well with no ads shown.
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.
Here is video recorded, exactly 60 seconds, reported HR is 57-61 but if you count all the beats drawn it is actually 70 https://streamable.com/vvulja
Also I tried Cardiograph android app https://play.google.com/store/apps/detaiĀls?id=com.macropinch.hydra.android on my phone and it matches what my other watches/fitness trackers show. I disabled network before starting it as some people in reviews claim that showing ads make it less relible. For me it worked pretty well with no ads shown.