Can ezButton library be used to break from loops?

Projects General Guidance
1

I'd want to create a program where a button push will stop the rotation of a stepper motor. Using these test programs, when I use IR sensor as a trigger to break loops, it works:

const int IR = 3;
const int stepPin = 5;
const int dirPin = 6;
const int enPin = 7;
int x = 0;

void setup() {
  Serial.begin(9600);
  pinMode(IR, INPUT);
  pinMode(stepPin,OUTPUT); 
  pinMode(dirPin,OUTPUT);
  pinMode(enPin,OUTPUT);
  digitalWrite(enPin,LOW);  
}

void loop() {
  while(true){
    x++;
    Serial.println(x);
    if(digitalRead(IR)==LOW){
      break;
    }
  }
  delay(1000);
  while(true){
    digitalWrite(dirPin,LOW); //Changes the direction of rotation    
    digitalWrite(stepPin,HIGH);
    delayMicroseconds(500);
    digitalWrite(stepPin,LOW);
    delayMicroseconds(500);
    if(digitalRead(IR)==LOW){
      break;
    }
  }
  delay(1000);
}

But it didn't work the same way when I use the ezButton library in place of IR sensor, the program stays on the x++ loop one:

#include <ezButton.h>
const int stepPin = 5;
const int dirPin = 6;
const int enPin = 7;
int x = 0;

//Button
ezButton PUSH(4);

void setup() {
  Serial.begin(9600);
  pinMode(stepPin,OUTPUT); 
  pinMode(dirPin,OUTPUT);
  pinMode(enPin,OUTPUT);
  digitalWrite(enPin,LOW);  
  //Button
  PUSH.setDebounceTime(50);
}

void loop() {
  PUSH.loop();
  while(true){
    x++;
    Serial.println(x);
    if(PUSH.isPressed()){
      break;
    }
  }
  delay(1000);
  while(true){
    digitalWrite(dirPin,LOW); //Changes the direction of rotation    
    digitalWrite(stepPin,HIGH);
    delayMicroseconds(500);
    digitalWrite(stepPin,LOW);
    delayMicroseconds(500);
    if(PUSH.isPressed()){
      break;
    }
  }
  delay(1000);
}

Are there any ways to make ezButton library usable for breaking loops? Or that it just can't? (then what'd be the other solution? of which if able, keep it concise)

2

PUSH.loop();

Add that statement inside both while loops.

3

It works, I guess, thanks. Do I need to still put the PUSH.loop() for the void loop() as a whole?

4

Not with the code you posted with the two while loops.

The PUSH.loop() function is where the debounced button state is checked. Typically, where you do not have a program designed with blocking while loops, you would check every pass in the main loop.

5

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