WxBeacon2のデータを取得する ref: http://qiita.com/KazuyukiEguchi/items/32c6497496923783fa53

wx2.js

// Wx2Beaconの測定データを取得するプログラム
// Programed by Kazuyuki Eguchi

var noble = require('noble');

var WX2_SERVICE_UUID = '0c4c3000770046f4aa96d5e974e32a54';
var WX2_NOWDATA_UUID = '0c4c3001770046f4aa96d5e974e32a54';

noble.on('stateChange', function(state) {
    console.log('on -> stateChange: ' + state);

    if (state === 'poweredOn') {
        noble.startScanning();
    } else {
        noble.stopScanning();
    }
});

noble.on('scanStart', function() {
    console.log('on -> scanStart');
});

noble.on('scanStop', function() {
    console.log('on -> scanStop');
});

noble.on('discover', function(peripheral) {
    console.log('on -> discover: ' + peripheral.advertisement.localName);

    if(peripheral.advertisement.localName == 'Env')
    {
        console.log(peripheral.address);
        noble.stopScanning();

        peripheral.on('connect', function() {
            console.log('on -> connect');
            this.discoverServices();
        });

        peripheral.on('disconnect', function() {
            console.log('on -> disconnect');
            process.exit();
        });

        peripheral.on('servicesDiscover', function(services) {
            for(var i = 0; i < services.length; i++) {
                // console.log(services[i]['uuid']);
                if(services[i]['uuid'] == WX2_SERVICE_UUID)
                {
                    services[i].on('includedServicesDiscover', function(includedServiceUuids) {
                        this.discoverCharacteristics();
                    });

                    services[i].on('characteristicsDiscover', function(characteristics) {
                        for(var j = 0; j < characteristics.length; j++) {
                            // console.log(characteristics[j].uuid);
                            if(characteristics[j].uuid == WX2_NOWDATA_UUID)
                            {
                                var WX2_NOWDATA = characteristics[j];
                                WX2_NOWDATA.read(function(error, data) {
                                    if (data) {
                                        // console.log(data);

                                        // 温度
                                        var temp = ((data[2] & 0xff) << 8) + (data[1] & 0xff);
                                        temp = temp * 0.01;

                                        // 湿度
                                        var hum = ((data[4] & 0xff) << 8) + (data[3] & 0xff);
                                        hum = hum * 0.01;

                                        // 照度
                                        var lum = ((data[6] & 0xff) << 8) + (data[5] & 0xff);

                                        // UVインデックス
                                        var uv = ((data[8] & 0xff) << 8) + (data[7] & 0xff);
                                        uv = uv * 0.01;

                                        // 気圧
                                        var atom = ((data[10] & 0xff) << 8) + (data[9] & 0xff);
                                        atom = atom * 0.1;

                                        // 騒音
                                        var noise = ((data[12] & 0xff) << 8) + (data[11] & 0xff);
                                        noise = noise * 0.01;

                                        // 不快指数
                                        var disco = ((data[14] & 0xff) << 8) + (data[13] & 0xff);
                                        disco = disco * 0.01;

                                        // 熱中症危険度
                                        var heat = ((data[16] & 0xff) << 8) + (data[15] & 0xff);
                                        heat = heat * 0.01;

                                        // バッテリー電圧
                                        var batt = ((data[18] & 0xff) << 8) + (data[17] & 0xff);
                                        batt = batt * 0.001;

                                        console.log('No=' + data[0]);
                                        console.log('Temp=' + temp + ' ℃');
                                        console.log('Humidity=' + hum + ' %') 
                                        console.log('Luminosity=' + lum + ' lx');
                                        console.log('UV Index=' + uv);
                                        console.log('Atom=' + atom + ' hPa');
                                        console.log('Noise=' + noise + ' dB');
                                        console.log('Discomfort index=' + disco);
                                        console.log('Heat=' + heat + ' ℃');
                                        console.log('Battery=' + batt + ' mv');
                                    }
                                    peripheral.disconnect();
                                });
                            }
                        }
                    });

                    services[i].discoverIncludedServices();
                }
            }
        });

        peripheral.connect();
    }
});

実行結果

$ node wx2.js
on -> stateChange: poweredOn
on -> scanStart
on -> discover: Env
f6:a8:12:02:78:9c
on -> scanStop
on -> connect
No=10
Temp=34.67 ℃
Humidity=63.35 %
Luminosity=3486 lx
UV Index=0.14
Atom=1004.9000000000001 hPa
Noise=39.980000000000004 dB
Discomfort index=87.06
Heat=31.92 ℃
Battery=2.97 mv
on -> disconnect
$