bme280.js

 const ambient = require('ambient-lib');
 const five    = require('johnny-five');
 const board   = new five.Board({
     port: '/dev/cuaU0'
 });

 ambient.connect(00000,'xxxxxxxxxxxxxxx');

 board.on('ready', function() {
   var multi = new five.Multi({
       controller: "BME280",
       address: 0x76,
       freq: 300000
   });

   multi.on('data', function() {
     const c      = this.thermometer.celsius;
     const p      = this.barometer.pressure;
     const hum    = this.hygrometer.relativeHumidity;
     const now    = new Date();
     const y      = now.getFullYear();
     const m      = ("00" + (now.getMonth()+1)).slice(-2);
     const d      = ("00" + now.getDate()).slice(-2);
     const h      = ("00" + now.getHours()).slice(-2);
     const min    = ("00" + now.getMinutes()).slice(-2);
     const s      =  ("00" + now.getSeconds()).slice(-2);
     const result = `${y}-${m}-${d}T${h}:${min}:${s} ${c}℃ ${hum}% ${p}hPa`;
     console.log(result);

     ambient.send({d1: c, d2: hum, d3: p}, (err, res, body) => {
       if (err) { console.log(err); }
       console.log(res.statusCode);
     });

   });
 });