text: var argv = require("minimist")(process.argv.slice(2), { default: { show: 1 } });
  var five = require("../lib/johnny-five");
  var board = new five.Board();
  
  board.on("ready", function() {
    // MPR121QR2 3x3 Capacitive Touch Shield
    var touchpad;
  
    if (argv.show === 1) {
      touchpad = new five.Touchpad({
        controller: "MPR121QR2_SHIELD"
      });
    }
  
    if (argv.show === 2) {
      touchpad = new five.Touchpad({
        controller: "MPR121QR2_SHIELD",
        keys: [
          ["!", "@", "#"],
          ["$", "%", "^"],
          ["&", "-", "+"],
        ]
      });
    }
  
    if (argv.show === 3) {
      touchpad = new five.Touchpad({
        controller: "MPR121QR2_SHIELD",
        keys: ["!", "@", "#", "$", "%", "^", "&", "-", "+"]
      });
    }
  
    ["change", "press", "hold", "release"].forEach(function(eventType) {
      touchpad.on(eventType, function(event) {
        console.log("Event: %s, Target: %s", eventType, event.which);
      });
    });
  });
  