#include <TM1637.h>


TM1637 TM1, TM2, TM3, TM4;

int values[4] = {21, 22, 23, 24};

// Define the button pins for incrementing
const int incrementButtonPins[4] = {34, 32, 5, 16};
// Define the button pins for decrementing
const int decrementButtonPins[4] = {35, 33, 17, 4};

// Variables to track the previous button states for incrementing
int previousIncrementButtonStates[4] = {HIGH, HIGH, HIGH, HIGH};
// Variables to track the previous button states for decrementing
int previousDecrementButtonStates[4] = {HIGH, HIGH, HIGH, HIGH};

void setup() {
  Serial.begin(115200);

TM1.begin(14, 12, 4); 
TM1.displayClear(); 
TM1.setBrightness(7);

TM2.begin(26, 27, 4);
TM2.displayClear(); 
TM2.setBrightness(7);

TM3.begin(22, 23, 4);
TM3.displayClear(); 
TM3.setBrightness(7);

TM4.begin(18, 19, 4);
TM4.displayClear(); 
TM4.setBrightness(7);



  // Set the button pins as inputs with internal pull-up resistors
  for (int i = 0; i < 4; i++) {
    pinMode(incrementButtonPins[i], INPUT_PULLUP);
    pinMode(decrementButtonPins[i], INPUT_PULLUP);
  }
}

void loop() {
  for (int i = 0; i < 4; i++) {
    // Read the current state of the increment button
    int currentIncrementButtonState = digitalRead(incrementButtonPins[i]);

    // Check if the button state has changed from HIGH to LOW
    if (previousIncrementButtonStates[i] == HIGH && currentIncrementButtonState == LOW) {
      // Increment the corresponding value
      values[i]++;
      Serial.print("Value ");
      Serial.print(i);
      Serial.print(" (incremented): ");
      Serial.println(values[i]);

      // Wait until the button is released
      while (digitalRead(incrementButtonPins[i]) == LOW);
      delay(50); // Additional delay to avoid multiple increments from button bouncing
    }

    // Update the previous button state for incrementing
    previousIncrementButtonStates[i] = currentIncrementButtonState;

    // Read the current state of the decrement button
    int currentDecrementButtonState = digitalRead(decrementButtonPins[i]);

    // Check if the button state has changed from HIGH to LOW
    if (previousDecrementButtonStates[i] == HIGH && currentDecrementButtonState == LOW) {
      // Decrement the corresponding value
      values[i]--;
      Serial.print("Value ");
      Serial.print(i);
      Serial.print(" (decremented): ");
      Serial.println(values[i]);

      // Wait until the button is released
      while (digitalRead(decrementButtonPins[i]) == LOW);
      delay(50); // Additional delay to avoid multiple decrements from button bouncing
    }

    // Update the previous button state for decrementing
    previousDecrementButtonStates[i] = currentDecrementButtonState;

    // Update the corresponding display
    switch (i) {
      case 0:
        TM1.displayInt(values[i]);
        break;
      case 1:
        TM2.displayInt(values[i]);
        break;
      case 2:
        TM3.displayInt(values[i]);
        break;
      case 3:
        TM4.displayInt(values[i]);
        break;
    }
  }
}