bot.js

function createBot () {
  var board = new five.Board()
  var oled
  board.on('ready', function () {
    console.log('Connected to Arduino, ready.')

    // I2C va USB
    var opts = {
      width: 128,
      height: 64,
      address: 0x3C
    }
    oled = new Oled(board, five, opts)
  })
  board.woohoo = function () {
    oled.whatever() 
  }
  return board
}

bot2.js

function createBot () {
  var board = new five.Board()
  var oled
  board.on('ready', function () {
    console.log('Connected to Arduino, ready.')

    // I2C va USB
    var opts = {
      width: 128,
      height: 64,
      address: 0x3C
    }
    oled = new Oled(board, five, opts)
  })
  return {
    board: board,
    woohoo: function () {
      oled.whatever() 
    }
  }
}