edison_main.js

var mraa = require('mraa');
var ubidots = require('ubidots');

var analogPin0 = new mraa.Aio(0); //setup access analog input Analog pin #0 (A0)

var client = ubidots.createClient('APIKEY');

client.auth(function() {  
    var v = this.getVariable('VARIABLE_ID');  
    setInterval(function() {    
        var analogValue = analogPin0.read();    
        console.log(analogValue);    
        v.saveValue(analogValue);  
    }, 1000);
});