You are reading a single comment by @HughB and its replies.
Click here to read the full conversation.
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.
@HughB
Long press is normally reserved for a reboot. You could override that in code but then if you get into bother there is no way to reset the watch.
Using the health app you can measure heart rate in your sleep. But note when the hear rate monitor turns on will light up the back with the green leds.