Bangle.js Heart rate data

Well there's the Web Bluetooth examples: http://www.espruino.com/Web+Bluetooth#two-way-communications

Just replace the line "setInterval(function(){Bluetooth.println(Puck.light());},100);NRF.on('disconnect', function() {reset()});\n", with:

"Bangle.setHRMPower(1);Bangle.on("HRM",h=>Bluetooth.println(h.bpm));NRF.on('disconnect', function() {load()});\n",

and it'll output it.