如何檢查值是否按正確順序變化？ C++

Question

我需要一種方法來檢查這些引腳以正確的順序從高電平變爲低電平。 （即紅色>棕色>藍色>灰色>黑色>黃色>白色>橙色>紫色>綠色）如果其中一個引腳變爲亂序，如果錯誤計數超過4則必須將「errorCount」加1，然後調用函數。對於銷的代碼

部分：

const int wire_BROWN = 30; 
    int wire_BROWN_state = 0; 
    int wire_BROWN_lastState = 0; 

    const int wire_RED = 32; 
    int wire_RED_state = 0; 
    int wire_RED_lastState = 0; 

    const int wire_ORANGE = 34; 
    int wire_ORANGE_state = 0; 
    int wire_ORANGE_lastState = 0; 

    const int wire_YELLOW = 36; 
    int wire_YELLOW_state = 0; 
    int wire_YELLOW_lastState = 0; 

    const int wire_GREEN = 38; 
    int wire_GREEN_state = 0; 
    int wire_GREEN_lastState = 0; 

    const int wire_BLUE = 40; 
    int wire_BLUE_state = 0; 
    int wire_BLUE_lastState = 0; 

    const int wire_PURPLE = 42; 
    int wire_PURPLE_state = 0; 
    int wire_PURPLE_lastState = 0; 

    const int wire_GREY = 44; 
    int wire_GREY_state = 0; 
    int wire_GREY_lastState = 0; 

    const int wire_WHITE = 46; 
    int wire_WHITE_state = 0; 
    int wire_WHITE_lastState = 0; 

    const int wire_BLACK = 48; 
    int wire_BLACK_state = 0; 
    int wire_BLACK_lastState = 0; 

Answer 1

你可以把它們放在一個數組中的順序，你要檢查他們，然後遍歷數組，開始檢查

僞：

byte check(int a[]){ // Get's called on update of pins 
    byte error = 0; 
    for (byte i=1; i < a.length - 1; a++); 
    if (a[i] < a[i-1]){ 
     error++; 
    } 
    return(error) 
} 

byte stateArray[] = { 
    digitalRead(wire_BROWN), 
    digitalRead(wire_BLUE), 
    digitalRead(wire_BLACK), 
    digitalRead(wire_YELLOW), 
    digitalRead(wire_WHITE), 
    digitalRead(wire_ORANGE), 
    digitalRead(wire_PURPLE), 
    digitalRead(wire_GREEN), 
}; 
byte errorCount = check(stateArray); 
if (errorCount > 4) { 
    // Error Handling 
}