Question

我正在研究arduino proramming，其中我需要一个led然后关闭它然后在下一个.. 16个LED所有tgt和我使用移位寄存器MC74HC595AN又名595寄存器。我发现很难自己编码，因为我还在学习如何用Arduino编程。任何有代码或可以解决代码的人都可以与我分享吗？任何形式的帮助将不胜感激！谢谢！

这是我做过的代码，但似乎没有起作用。

    const int button0Pin = 15;
    const int button1Pin = 1;
    const int button2Pin = 2;
    const int button3Pin = 3;
    const int button4Pin = 4;
    const int button5Pin = 5;
    const int button6Pin = 6;
    const int button7Pin = 7;



    void setup() {
      // put your setup code here, to run once:
    pinMode(button0Pin, OUTPUT);
    pinMode(button1Pin, OUTPUT);
    pinMode(button2Pin, OUTPUT);
    pinMode(button3Pin, OUTPUT);
    pinMode(button4Pin, OUTPUT);
    pinMode(button5Pin, OUTPUT);
    pinMode(button6Pin, OUTPUT);
    pinMode(button7Pin, OUTPUT);
    pinMode(14, INPUT);

    Serial.begin(9600);

    }

    void loop() {
      // put your main code here, to run repeatedly:



    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 1);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 1);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 1);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 1);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 1);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 1);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 0);
    digitalWrite(button1Pin, 1);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);

    digitalWrite(button0Pin, 1);
    digitalWrite(button1Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    digitalWrite(button2Pin, 0);
    delay(5000);
    }

Answer 1

所以，为了清楚这一点，你要将引脚14初始化为接收输入的东西，但是你从来没有在主循环中实际使用它来检查你是否得到任何输入。

为了让您的生活更轻松，请考虑将引脚命名为较短的名称。而不是“button0Pin”如何只是“b0”？

另外，你可能想尝试使用for循环而不是你正在做的事情（写出单独的代码块，每个代码块在不同的位置输出1个引脚）

您可以在此处阅读arduino参考指南（我每次编程时都会阅读）：https://www.arduino.cc/en/Reference/HomePage

此链接：https://electronics.stackexchange.com/questions/17975/arduino-uno-light-leds-right-to-left-and-then-reversed可能类似于您需要的for循环。

希望至少有一点帮助。

Answer 2

你正确地初始化了pin模式，但是你对button2Pin进行了大量的写作。

此外，如果您实际上没有将引脚14连接到电源，那么您应该考虑将其设置为INPUT_PULLUP，以免不必要地消耗多余电量。

LED上的Arduino编程难度很大

2 个答案: