Algoirthm and Code Problem

Community General Discussion
1

hello, I want to design a garage door code with the components I have, but I couldn't find the kind of solution I want. When I press the button the motor should start spinning and when I press it again it should stop, when I press it again it should spin again. When I press the second button, the motor should reverse and when I press it again, it should stop in the same way. Also, when I press the first button and then the other button, the motor should reverse. I'm seriously confused. Is there an example code for this?

2

If your research has not turned up any code like this, I doubt that it exists. On the bright side, this is an opportunity for you to create something unique!

3

Just out of curiosity, why don't you use a ready-made wireless garage door opener?

4

You need to detect when the button becomes pressed rather than when it is pressed
See the StateChangeDetection example in the IDE

5

Show what you’ve got

6 
// Arduino Two Push button Garage Door Opener Code

int motorup=13; 
int motordown=12;
int buttonup=2;
int buttondown=4;
bool flag=false;
 
void setup() {
pinMode(motorup, OUTPUT);  
pinMode(motordown, OUTPUT); //Motor reverse
pinMode(buttonup, INPUT);   
pinMode(buttondown, INPUT);  
}
 
void loop() {
  digitalRead(buttonup);
  digitalRead(buttondown);

  if(buttonup==HIGH && buttondown==LOW && flag==false) // Open the door
  {
    flag=true;
    digitalWrite(motorup, HIGH);
    digitalWrite(motordown, LOW);
   }
  if (buttonup==HIGH && buttondown==LOW && flag== true) //Pause the Door
   { 
   flag=false;
   digitalWrite(motorup, LOW); //Kapı Yukarı Doğru Açılır. 
   digitalWrite(motordown, LOW);
   }
  if (buttonup==LOW && buttondown==HIGH && flag==false) // Open the door
   {
    flag=true;
    digitalWrite(motorup,LOW);
    digitalWrite(motordown, HIGH);
   }
   if (buttonup==LOW && buttondown==HIGH && flag ==true) //Pause the Door
   {
    flag=false;
    digitalWrite(motorup, LOW);
    digitalWrite(motordown, LOW);
   }
   else // BUG
   {
    flag=false;
    digitalWrite(motorup,LOW);
    digitalWrite(motordown,LOW);
    }
}

I can write this but not work, there is not any response. Why ?

8 
// Arduino Two Push button Garage Door Opener Code

int motorup=13; 
int motordown=12;
int buttonup=2;
int buttondown=4;
bool flag=false;
 
void setup() {
pinMode(motorup, OUTPUT);  
pinMode(motordown, OUTPUT); //Motor reverse
pinMode(buttonup, INPUT);   
pinMode(buttondown, INPUT);  
}
 
void loop() {
  digitalRead(buttonup);
  digitalRead(buttondown);

  if(buttonup==HIGH && buttondown==LOW && flag==false) // Open the door
  {
    flag=true;
    digitalWrite(motorup, HIGH);
    digitalWrite(motordown, LOW);
   }
  if (buttonup==HIGH && buttondown==LOW && flag== true) //Pause the Door
   { 
   flag=false;
   digitalWrite(motorup, LOW); //Kapı Yukarı Doğru Açılır. 
   digitalWrite(motordown, LOW);
   }
  if (buttonup==LOW && buttondown==HIGH && flag==false) // Open the door
   {
    flag=true;
    digitalWrite(motorup,LOW);
    digitalWrite(motordown, HIGH);
   }
   if (buttonup==LOW && buttondown==HIGH && flag ==true) //Pause the Door
   {
    flag=false;
    digitalWrite(motorup, LOW);
    digitalWrite(motordown, LOW);
   }
   else // BUG
   {
    flag=false;
    digitalWrite(motorup,LOW);
    digitalWrite(motordown,LOW);
    }
}

Why don`t I get any response with this code? Where am I wrong?

9 
// Arduino Two Push button Garage Door Opener Code

int motorup=13; 
int motordown=12;
int buttonup=2;
int buttondown=4;
bool flag=false;
 
void setup() {
pinMode(motorup, OUTPUT);  
pinMode(motordown, OUTPUT); //Motor reverse
pinMode(buttonup, INPUT);   
pinMode(buttondown, INPUT); 
    digitalWrite(motorup,LOW);
    digitalWrite(motordown,LOW); 
}
 
void loop() {

  if(digitalRead(buttonup==HIGH) && digitalRead(buttondown==LOW) && flag==false) // Open the door
  {
    flag=true;
    digitalWrite(motorup, HIGH);
    digitalWrite(motordown, LOW);
   }
  if (digitalRead(buttonup)==HIGH && digitalRead(buttondown)==LOW && flag== true) //Pause the Door
   { 
   flag=false;
   digitalWrite(motorup, LOW); 
   digitalWrite(motordown, LOW);
   }
  if (digitalRead(buttonup)==LOW && digitalRead(buttondown)==HIGH && flag==false) // Open the door
   {
    flag=true;
    digitalWrite(motorup,LOW);
    digitalWrite(motordown, HIGH);
   }
   if (digitalRead(buttonup)==LOW && digitalRead(buttondown)==HIGH && flag ==true) //Pause the Door
   {
    flag=false;
    digitalWrite(motorup, LOW);
    digitalWrite(motordown, LOW);
   }
   else // BUG
   {
    flag=false;
    digitalWrite(motorup,LOW);
    digitalWrite(motordown,LOW);
    }
}

I fix the some issues in code but now, just pin 13 give "1" output everytime and doesn`t effect the input pins of the system. Why ?

10

If the first if is true, the second will be too, directly after leaving the first.

The same holds true for the second pair of if's.

And you still

12

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