#include <Arduino.h>
const int INPUT_EX_1 = 8; // Pin for button 1
const int INPUT_EX_2 = 9; // Pin for button 2

unsigned long previousMillis = 0; // Used to store the last time the state was checked
const unsigned long debounceDelay = 200; // Interval for checking button states in milliseconds

void setup() {
  Serial.begin(9600);
  pinMode(INPUT_EX_1, INPUT_PULLUP); // Set button 1 pin as input with internal pull-up
  pinMode(INPUT_EX_2, INPUT_PULLUP); // Set button 2 pin as input with internal pull-up
}

void loop() {
  unsigned long currentMillis = millis();

  // Only check button states at set intervals
  if (currentMillis - previousMillis >= debounceDelay) {
    previousMillis = currentMillis;

    // Check for button press states and print accordingly
    if (!digitalRead(INPUT_EX_1) && !digitalRead(INPUT_EX_2)) {
        while (!digitalRead(INPUT_EX_1) && !digitalRead(INPUT_EX_2));
      Serial.println("Input 11");
    } 
    else if (!digitalRead(INPUT_EX_1)) {
      while (!digitalRead(INPUT_EX_1));
      Serial.println("Input 01");
    } 
    else if (!digitalRead(INPUT_EX_2)) {
      while (!digitalRead(INPUT_EX_2));
      Serial.println("Input 10");
    }
  }
}