Question

我的电路板设置有两个按钮（带上拉电阻）和两个LED。我希望每个按钮打开相应的LED并关闭另一个。

代码：

var five = require('johnny-five');
var board = new five.Board({ port: "COM3" });

board.on("ready", function() {

  // def led
  ledGreen = new five.Pin(13);
  ledYellow = new five.Pin(7);


  buttonRight = new five.Button({
    pin: 2,
    inverted:true
   });

  buttonLeft = new five.Button({
    pin: 3,
    inverted:true
   });

  buttonRight.on("hit", function(value) {
    ledGreen.high();
    ledYellow.low();
    console.log("Button Right - Green ");
  });

  buttonLeft.on("hit", function(value) {
    ledGreen.low();
    ledYellow.high();
    console.log("Button Left - Yellow");
  });

});

控制台显示正确的推送状态，但有时相应的LED不会打开，而其他指示灯会关闭。它真的是零星的。我错过了什么？这只发生在NW.js环境中，独立节点app运行正常。我有nwjs-j5-fix。

Answer 1

您可以尝试初始化引脚......

ledGreen = new five.Pin(13);
ledYellow = new five.Pin(7);

ledGreen.low();
ledYellow.low();

这将确保他们关闭。

在NW.js中用johnny-five和arduino开启/关闭

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