C++ 如何获得一个连续提供数据以输出一位整数值的输入

简要总结一下我的项目，这是一个智能停车系统，我让停车用户知道停车场是否空置。我正在实现一个包含1个协调器和2个路由器的XBee网络。我有两个传感器，一个在出口，一个在入口。这两个传感器是路由器，它们收集的任何数据都将传输到协调器（输出）。两个路由器具有相同的代码，即：

输入代码（传输）：

输出代码也非常简单。让我知道是否有任何可能的方法来实现我正在尝试做的事情，如果我遗漏了任何其他细节，也让我知道

---

谢谢大家!

在传感器传输代码中，这是一个非常常见的问题，最好在源代码处解决

//...
bool PreviousDetection = false;
void loop()
{

    bool Detection = digitalRead(Sensor);

    // do not do anything when state hasn't changed.
    if (Detection != PreviousDetection)
    {
        if (Detection)
            Serial.println("Car Exit");
        else
            Serial.println("Clear");
    }
    PreviousDetection = Detection;
}

您可能需要添加一些去抖动以降低错误读数的风险

//...
// Debounce thresholds the number depends on the frequency of readings,
// speeed of cars, sensitivity and placement of your sensor...
// Dirt, sun exposure, etc... may influence readings in the long term.
const int LowDebounceThreshold = 3;
const int HighDebounceThreshold = 3;

bool PreviousDetection = false;
int DebounceCounter = 0;
bool DebouncedPreviousDetection = false;

void loop()
{

    bool Detection = digitalRead(Sensor);
    // 
    if (Detection == PreviousDetection)
        ++DebounceCounter; // this will rollover, but will not affect 
                           // DebouncedDetection in any meaningfull way.
    else
        DebounceCounter = 0;

    PreviousDetection = Detection;

    bool DebouncedDetection = PreviousDebouncedDetection;

    if (Detection && DebounceCounter >= HighDebounceThreshold)
        DebouncedDetection = true;
    else if (!Detection && DebounceCounter >= LowDebounceThreshold)
        DebouncedDetection = false;

    if (DebouncedDetection != PreviousDebouncedDetection)
    {
        PreviousDebouncedDetection = DebouncedDetection;
        if (DebouncedDetection) 
            Serial.println("Car Exit");
        else
            Serial.println("Clear");
    }
}

---

⟼请记住，保持代码尽可能有条理是非常重要的，尤其是在学习和询问有关堆栈溢出的问题时。有助于沟通结构，更重要的是，有助于我们快速找到问题的根源，而无需花费大量时间试图解码正在发生的事情。明白了！我认为我在保持整洁方面做得相当好，但下次我会努力做得更好。非常感谢。

//...
bool PreviousDetection = false;
void loop()
{

    bool Detection = digitalRead(Sensor);

    // do not do anything when state hasn't changed.
    if (Detection != PreviousDetection)
    {
        if (Detection)
            Serial.println("Car Exit");
        else
            Serial.println("Clear");
    }
    PreviousDetection = Detection;
}

//...
// Debounce thresholds the number depends on the frequency of readings,
// speeed of cars, sensitivity and placement of your sensor...
// Dirt, sun exposure, etc... may influence readings in the long term.
const int LowDebounceThreshold = 3;
const int HighDebounceThreshold = 3;

bool PreviousDetection = false;
int DebounceCounter = 0;
bool DebouncedPreviousDetection = false;

void loop()
{

    bool Detection = digitalRead(Sensor);
    // 
    if (Detection == PreviousDetection)
        ++DebounceCounter; // this will rollover, but will not affect 
                           // DebouncedDetection in any meaningfull way.
    else
        DebounceCounter = 0;

    PreviousDetection = Detection;

    bool DebouncedDetection = PreviousDebouncedDetection;

    if (Detection && DebounceCounter >= HighDebounceThreshold)
        DebouncedDetection = true;
    else if (!Detection && DebounceCounter >= LowDebounceThreshold)
        DebouncedDetection = false;

    if (DebouncedDetection != PreviousDebouncedDetection)
    {
        PreviousDebouncedDetection = DebouncedDetection;
        if (DebouncedDetection) 
            Serial.println("Car Exit");
        else
            Serial.println("Clear");
    }
}