Как мне сделать программу в Arduino, чтобы изменить переменную с 0 на 9, затем с 9 на 0 и так далее?

Question

В настоящее время я строю дисплей с семью сегментами, и я хочу, чтобы он отображал все числа от 0 до 9, и наоборот.Мне удалось отобразить все цифры от 0 до 9, но я застрял, пытаясь отобразить цифры от 9 до 0. Как только он достигает 9, он просто перезапускается с 0. Вы можете мне помочь?Большое спасибо заранее <3 </p>

int G = 3; // G equals to the lower segment
int H = 2; // H equals to the lower-left segment
int x = 0;
int Delay = 500;


void setup() {
pinMode(A, OUTPUT);
pinMode(B, OUTPUT);
pinMode(C, OUTPUT);
pinMode(D, OUTPUT);
pinMode(E, OUTPUT);
pinMode(F, OUTPUT);
pinMode(G, OUTPUT);
pinMode(H, OUTPUT);
}


void loop() {
    if (x < 10) {
        x = x+1;           // This is the part of the code where i'm stuck
        delay(Delay);

   }
    if (x == 10) {                 // in this part of the loop i simply dispaly a certain number on the display based on the value of x
        x = x-10; 
  }
    if(x == 0)  {
        digitalWrite(A, LOW);
        digitalWrite(B, HIGH);  
        digitalWrite(C, HIGH);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, HIGH);
        digitalWrite(H, HIGH);
  } 

    if(x == 1)  {
        digitalWrite(A, LOW);
        digitalWrite(B, LOW);
        digitalWrite(C, HIGH);
        digitalWrite(D, LOW);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, LOW);
        digitalWrite(H, LOW); 
  }

      if(x == 2)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, LOW);
        digitalWrite(C, HIGH);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, LOW);
        digitalWrite(G, HIGH);
        digitalWrite(H, HIGH);
  }

    if(x == 3)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, LOW);
        digitalWrite(C, HIGH);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, HIGH);
        digitalWrite(H, LOW);
  }
    if(x == 4)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, HIGH);
        digitalWrite(C, HIGH);
        digitalWrite(D, LOW);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, LOW);
        digitalWrite(H, LOW);
  }
    if(x == 5)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, HIGH);
        digitalWrite(C, LOW);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, HIGH);
        digitalWrite(H, LOW);
  }
    if(x == 6)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, HIGH);
        digitalWrite(C, LOW);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, HIGH);
        digitalWrite(H, HIGH);
  }
    if(x == 7)  {
        digitalWrite(A, LOW);
        digitalWrite(B, LOW);
        digitalWrite(C, HIGH);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, LOW);
        digitalWrite(H, LOW);
  }
    if(x == 8)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, HIGH);
        digitalWrite(C, HIGH);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, HIGH);
        digitalWrite(H, HIGH);
  }
    if(x == 9)  {
        digitalWrite(A, HIGH);
        digitalWrite(B, HIGH);
        digitalWrite(C, HIGH);
        digitalWrite(D, HIGH);
        digitalWrite(E, LOW);
        digitalWrite(F, HIGH);
        digitalWrite(G, HIGH);
        digitalWrite(H, LOW);
  }
}

Answer 1

Вот решение, которое будет запускать числа от 0 до 9, а затем возвращаться к 0:

int G = 3; // G equals to the lower segment
int H = 2; // H equals to the lower-left segment
int x = 0;
int Delay = 500;

void controlSegment(int x);
void setup() {
pinMode(A, OUTPUT);
pinMode(B, OUTPUT);
pinMode(C, OUTPUT);
pinMode(D, OUTPUT);
pinMode(E, OUTPUT);
pinMode(F, OUTPUT);
pinMode(G, OUTPUT);
pinMode(H, OUTPUT);
}


void loop() {
for(int i=0;i<10;i++){
  controlSegment(i);
  delay(DELAY);
}
for(int i=8;i>=0;i--){
  controlSegment(i);
  delay(DELAY);
}
}
void controlSegment(int x){
     if(x == 0)  {
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);  
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    digitalWrite(H, HIGH);
} 

if(x == 1)  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW);
    digitalWrite(H, LOW); 
  }

  if(x == 2)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, HIGH);
    digitalWrite(H, HIGH);
}

if(x == 3)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    digitalWrite(H, LOW);
}
if(x == 4)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, HIGH);
    digitalWrite(C, HIGH);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW);
    digitalWrite(H, LOW);
}
if(x == 5)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    digitalWrite(H, LOW);
}
if(x == 6)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    digitalWrite(H, HIGH);
}
if(x == 7)  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW);
    digitalWrite(H, LOW);
}
if(x == 8)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, HIGH);
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    digitalWrite(H, HIGH);
}
if(x == 9)  {
    digitalWrite(A, HIGH);
    digitalWrite(B, HIGH);
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    digitalWrite(H, LOW);
}
}

Answer 2

Я думаю, вы можете сделать это вручную, чтобы оно прошло

 if (x < 10) {
    x = x+1;         
    delay(Delay);
 }
 else {
 x-1;
 delay(Delay); 
 x-1 
 delay(Delay); 
 x-1;
 delay(Delay); 
 x-1 
 delay(Delay); 
 x-1;
 delay(Delay); 
 x-1 
 delay(Delay); 
 x-1;
 delay(Delay); 
 x-1 
 delay(Delay); 
 x-1 
 delay(Delay);
 }

Это не лучший способ сделать это, но оно должно работать