code: function(options) {
      options = options || {};
      options.device = options.device || '/dev/i2c-1';
      options.debug = options.debug || false;
    
      var address = BME280.I2C_ADDRESS_A;
      if ('address' in options)
          address = options.address;
  
      this.wire = new i2c(address, options);
  }
docs: http://www.adafruit.com/datasheets/BST-BME280-DS001-11.pdf