// Example for the TM1637 display with TM1637_RT library.
// By Koepel, 28 February 2023.
//
// Library: "TM1637_RT", https://github.com/RobTillaart/TM1637_RT

#include <TM1637.h>

TM1637 TM1, TM2, TM3, TM4;       // Each display needs its own object

int display1 = 21;
int display2 = 22;
int display3 = 23;
int display4 = 24;


const int buttonPin1up   = 34;
const int buttonPin1down = 35;
const int buttonPin2up   = 32;
const int buttonPin2down = 33;
const int buttonPin3up   = 5;
const int buttonPin3down = 17;
const int buttonPin4up   = 16;
const int buttonPin4down = 4;

int oldValue1up   = LOW;
int oldValue1down = LOW;
int oldValue2up   = LOW;
int oldValue2down = LOW;
int oldValue3up   = LOW;
int oldValue3down = LOW;
int oldValue4up   = LOW;
int oldValue4down = LOW;


char buffer[5];             // buffer for third display

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

  // -----------------------------------------
  // First display
  // -----------------------------------------
  TM1.begin(14, 12, 4);       //  clockpin, datapin, #digits
  TM1.displayClear();
  TM1.setBrightness(7);     // full brightness, default is 3
  TM1.displayInt(display1, 0); // Initial text on third display
  
  // -----------------------------------------
  // Second display
  // -----------------------------------------
  TM2.begin(26, 27, 4);       //  clockpin, datapin, #digits
  TM2.displayClear();
  TM2.setBrightness(7);     // full brightness, default is 3
  TM2.displayInt(display2, 0); // Initial text on third display

  // -----------------------------------------
  // Third display
  // -----------------------------------------
  TM3.begin(22, 23, 4);       //  clockpin, datapin, #digits
  TM3.displayClear();
  TM3.setBrightness(7);     // full brightness, default is 3
  TM3.displayInt(display3, 0); // Initial text on third display

  // -----------------------------------------
  // Fourth display
  // -----------------------------------------
  TM4.begin(18, 19, 4);       //  clockpin, datapin, #digits
  TM4.displayClear();
  TM4.setBrightness(7);     // full brightness, default is 3
  TM4.displayInt(display4, 0); // Initial text on third display

// displays OK

  pinMode(buttonPin1up, INPUT_PULLUP);
  pinMode(buttonPin1down, INPUT_PULLUP);
  pinMode(buttonPin2up, INPUT_PULLUP);
  pinMode(buttonPin2down, INPUT_PULLUP);
  pinMode(buttonPin3up, INPUT_PULLUP);
  pinMode(buttonPin3down, INPUT_PULLUP);
  pinMode(buttonPin4up, INPUT_PULLUP);
  pinMode(buttonPin4down, INPUT_PULLUP);


}

void loop()
{


//TM2.displayClear();
//TM3.displayClear();
//TM4.displayClear();

  int newValue1up   = digitalRead(buttonPin1up);
  int newValue1down = digitalRead(buttonPin1down);
  int newValue2up   = digitalRead(buttonPin2up);
  int newValue2down = digitalRead(buttonPin2down);
  int newValue3up   = digitalRead(buttonPin3up);
  int newValue3down = digitalRead(buttonPin3down);
  int newValue4up   = digitalRead(buttonPin4up);
  int newValue4down = digitalRead(buttonPin4down);

if(newValue1up == HIGH && oldValue1up == LOW) 
  {
  TM1.displayClear();
  display1++;
  TM1.displayInt(display1, 0);
  while (digitalRead(buttonPin1up) == HIGH);
  delay(50);
  }
if(newValue1down == HIGH && oldValue1down == LOW) 
  {
  TM1.displayClear();
  display1--;
  TM1.displayInt(display1, 0);
  while (digitalRead(buttonPin1down) == HIGH);
  delay(50);
  }



if(newValue2up == HIGH && oldValue2up == LOW) 
  {
  TM2.displayClear();
  display2++;
  TM2.displayInt(display2, 0);
  while (digitalRead(buttonPin1up) == HIGH);
  delay(50);
  }
if(newValue2down == HIGH && oldValue2down == LOW) 
  {
  TM2.displayClear();
  display2--;
  TM2.displayInt(display2, 0);
  while (digitalRead(buttonPin1down) == HIGH);
  delay(50);
  }


  if(newValue3up == HIGH && oldValue3up == LOW) 
  {
  TM3.displayClear();
  display3++;
  TM3.displayInt(display3, 0);
  while (digitalRead(buttonPin3up) == HIGH);
  delay(50);
  }
if(newValue3down == HIGH && oldValue3down == LOW) 
  {
  TM3.displayClear();
  display3--;
  TM3.displayInt(display3, 0);
  while (digitalRead(buttonPin3down) == HIGH);
  delay(50);
  }


  if(newValue4up == HIGH && oldValue4up == LOW) 
  {
  TM4.displayClear();
  display4++;
  TM4.displayInt(display4, 0);
  while (digitalRead(buttonPin4up) == HIGH);
  delay(50);
  }
if(newValue4down == HIGH && oldValue4down == LOW) 
  {
  TM4.displayClear();
  display4--;
  TM4.displayInt(display4, 0);
  while (digitalRead(buttonPin4down) == HIGH);
  delay(50);
  }







    }