31. コード var j5 = require('johnny-five'), arduino = new j5.Board(); arduino.on('ready', function(){ var led = new j5.Led({ pin: 13 }); led.strobe(200); }); 34. var j5 = require('johnny-five'), arduino = new j5.Board(); arduino.on('ready', function(){ var button = new j5.Button({ pin: 2, holdtime: 2000 }); button.on('down', function(){ console.log('button - on'); }); button.on('up', function(){ cons