scan-beacons.js

// Requires NodeJS and "noble" module: https://github.com/sandeepmistry/noble
// Based on: https://github.com/sandeepmistry/noble/issues/62

var noble = require('noble');
noble.on('stateChange', function(state) {
	if (state === 'poweredOn' ) {
		noble.startScanning([], false);
	} else {
		noble.stopScanning();
	}
});

noble.on('discover', function(peripheral) {
	peripheral.connect(function(error) {});

	peripheral.on('connect',function(){}); 

	peripheral.on('rssiUpdate',function(rssi){
		console.log({"uuid": peripheral.uuid, "rssi": peripheral.rssi });
	});

	setInterval(function(){
  		peripheral.updateRssi();
	}, 100);
});