cypressWSN.js

(function() {

    var gattip = null;
    var count = 0;

    class CypressWSN {
        constructor() {
            this.temperature = '';
            this.humidity = '';
            this.time = '';
            this.tempData = [];
            this.humidityData = [];

            this.peripherals = {};
            gattip = navigator.bluetooth.gattip;

            gattip.once('ready', function(gateway) {
                console.log('ready');

                function onScan(peripheral) {
                    var mfrData;

                    mfrData = peripheral.getMfrData('0131');
                    
                    if (mfrData) {
                        mfrData = mfrData.toUpperCase();
                        if (mfrData.indexOf("0005000100001000800000805F9B0131") > -1) {
                            if (!cypressWSN.peripherals[peripheral.uuid]) {
                                peripheral.tempGraphData = [{
                                    values: [],
                                    key: 'Temperature'
                                }];
                                peripheral.humidityGraphData = [{
                                    values: [],
                                    key: 'Humidity'
                                }];
                            }

                            cypressWSN.peripherals[peripheral.uuid] = peripheral;
                            var data = mfrData.substr(mfrData.lastIndexOf("C3") - 4, 4);
                            var hex_humidity = data[0] + data[1] + '0' + '1';
                            var hex_temperature = data[2] + data[3] + '0' + '0';
                            var temperature = Math.round((parseInt(hex_temperature, 16) * 175.72 / 65536 - 46.85) * 100) / 100;
                            var humidity = Math.round((parseInt(hex_humidity, 16) * 125 / 65536 - 6) * 100) / 100;

                            var d = new Date();
                            var currDate = d.getHours() + ':' + d.getMinutes() + ':' + d.getSeconds();

                            if (!isNaN(Number(temperature))) {
                                cypressWSN.peripherals[peripheral.uuid].tempData = {
                                    timeNum: count,
                                    date: currDate,
                                    temp: Number(temperature)
                                }
                            }
                            if (!isNaN(Number(humidity))) {
                                cypressWSN.peripherals[peripheral.uuid].humidityData = {
                                    timeNum: count,
                                    date: currDate,
                                    temp: Number(humidity)
                                }
                            }
                            count++;

                            cypressWSN.time = currDate;
                            cypressWSN.peripherals[peripheral.uuid].temperature = temperature + ' °C';
                            cypressWSN.peripherals[peripheral.uuid].humidity = humidity + ' %rH';
                            cypressWSN.updateUI();
                        }
                    }
                }
                gateway.scan();
                gateway.on('scan', onScan);
            });

            gattip.on('error', function(err) {
                console.log(err);
            });
        }
    }

    window.cypressWSN = new CypressWSN();
})();