State Management with Button

Other Hardware 3rd Party Boards
1

I'm trying to do a simple state management using Attiny85 and Arduino Uno, my scenario is as follows.

-Counter starts from 0.
-Counter can go up to 3 at most.
-Certain functions are called according to the state of the counter.

void loop() {
  btnState = digitalRead(button);

  if (btnState != lastState) {
    if (btnState == 1 && counter == 3) {
      counter = 0;
      lastState = btnState;
    }
    else {
      counter++;
      lastState = btnState;
    }
    delay(50);
  }

  if (btnState == 0) {
    if (counter == 1) {
      xyz();
    }
    if (counter == 2) {
      abc();
    }
    if (counter == 3) {
      asd();
    }
  }
}

With this code, once the button is pressed, the counter becomes 1, the function in the first state is called, but then the button becomes dysfunctional.

2

Welcome to the forum

Please post your complete sketch

How is the button input wired ?
What is the pinMode() of the button input ?

3

What does your code do when the button is released?
Hint: print the value of "counter" to the serial monitor

4

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.