//BINARY TO DECIMAL SIMPLE CONVERTER ARDUINO MEGA 0-99
// 7 input pins
/*  X6  X5  X4  X3  X2  X1  X0
    0   0   0   0   0   0   0   =   0
    0   0   0   0   0   0   1   =   1
    0   0   0   0   0   1   0   =   2
    0   0   0   0   0   1   1   =   3
    .
    .
    .
    .
    .
    1   1   0   0   0   1   1   =   99
    1   1   0   0   1   0   0   =   100 (out of range for two 7 segment displays)
*/

//set delay time in ms
#define setdelay 250

//on/off properties for display
int ON  = LOW;
int OFF = HIGH;

//x6 x5 x4 x3 x2 x1 x0
int X6 = 8;
int X5 = 7;
int X4 = 6;
int X3 = 5;
int X2 = 4;
int X1 = 3;
int X0 = 2;

//set segments
//left display
int LDsegmentA  = 22;
int LDsegmentB  = 23;
int LDsegmentC  = 24;
int LDsegmentD  = 25;
int LDsegmentE  = 26;
int LDsegmentF  = 27;
int LDsegmentG  = 28;
int LDsegmentDP = 29;
//right display
int RDsegmentA  = 30;
int RDsegmentB  = 31;
int RDsegmentC  = 32;
int RDsegmentD  = 33;
int RDsegmentE  = 34;
int RDsegmentF  = 35;
int RDsegmentG  = 36;
int RDsegmentDP = 37;

//Connection LED indicator
int LED_R = 10;
int LED_G = 11;

//test pin
int testpin = 9;

void setup() {
  //turn displays OFF
  digitalWrite(LDsegmentA,  OFF);
  digitalWrite(LDsegmentB,  OFF);
  digitalWrite(LDsegmentC,  OFF);
  digitalWrite(LDsegmentD,  OFF);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  OFF);
  digitalWrite(LDsegmentG,  OFF);
  digitalWrite(LDsegmentDP, OFF);
  digitalWrite(RDsegmentA,  OFF);
  digitalWrite(RDsegmentB,  OFF);
  digitalWrite(RDsegmentC,  OFF);
  digitalWrite(RDsegmentD,  OFF);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  OFF);
  digitalWrite(RDsegmentG,  OFF);
  digitalWrite(RDsegmentDP, OFF);

  //set pin mode
  pinMode(LDsegmentA,  OUTPUT);
  pinMode(LDsegmentB,  OUTPUT);
  pinMode(LDsegmentC,  OUTPUT);
  pinMode(LDsegmentD,  OUTPUT);
  pinMode(LDsegmentE,  OUTPUT);
  pinMode(LDsegmentF,  OUTPUT);
  pinMode(LDsegmentG,  OUTPUT);
  pinMode(LDsegmentDP, OUTPUT);
  pinMode(RDsegmentA,  OUTPUT);
  pinMode(RDsegmentB,  OUTPUT);
  pinMode(RDsegmentC,  OUTPUT);
  pinMode(RDsegmentD,  OUTPUT);
  pinMode(RDsegmentE,  OUTPUT);
  pinMode(RDsegmentF,  OUTPUT);
  pinMode(RDsegmentG,  OUTPUT);
  pinMode(RDsegmentDP, OUTPUT);
  pinMode(LED_R,       OUTPUT);
  pinMode(LED_G,       OUTPUT);
  pinMode(testpin,     INPUT);

  digitalWrite(LED_G, LOW);
  digitalWrite(LED_R, LOW);

  //Checks if display connected
  if (digitalRead(testpin) == LOW) {
    wrongdisplayconnection:
    digitalWrite(LED_R, HIGH);
    LE();
    RR();
    goto wrongdisplayconnection;
  } else {
    digitalWrite(LED_G, HIGH);
  }

  delay(1000);
  digitalWrite(LED_G, LOW);

  segmentTest();
}

void loop() {
  //0 0 0 0 0 0 0 = 0
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lzero();
    Rzero();
  }
  //0 0 0 0 0 0 1 = 1
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lzero();
    Rone();
  }
  //0 0 0 0 0 1 0 = 2
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lzero();
    Rtwo();
  }
  //0 0 0 0 0 1 1 = 3
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lzero();
    Rthree();
  }
  //0 0 0 0 1 0 0 = 4
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lzero();
    Rfour();
  }
  //0 0 0 0 1 0 1 = 5
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lzero();
    Rfive();
  }
  //0 0 0 0 1 1 0 = 6
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lzero();
    Rsix();
  }
  //0 0 0 0 1 1 1 = 7
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lzero();
    Rseven();
  }
  //0 0 0 1 0 0 0 = 8
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lzero();
    Reight();
  }
  //0 0 0 1 0 0 1 = 9
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lzero();
    Rnine();
  }
  //0 0 0 1 0 1 0 = 10
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lone();
    Rzero();
  }
  //0 0 0 1 0 1 1 = 11
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lone();
    Rone();
  }
  //0 0 0 1 1 0 0 = 12
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lone();
    Rtwo();
  }
  //0 0 0 1 1 0 1 = 13
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lone();
    Rthree();
  }
  //0 0 0 1 1 1 0 = 14
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lone();
    Rfour();
  }
  //0 0 0 1 1 1 1 = 15
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lone();
    Rfive();
  }
  //0 0 1 0 0 0 0 = 16
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lone();
    Rsix();
  }
  //0 0 1 0 0 0 1 = 17
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lone();
    Rseven();
  }
  //0 0 1 0 0 1 0 = 18
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lone();
    Reight();
  }
  //0 0 1 0 0 1 1 = 19
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lone();
    Rnine();
  }
  //0 0 1 0 1 0 0 = 20
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Ltwo();
    Rzero();
  }
  //0 0 1 0 1 0 1 = 21
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Ltwo();
    Rone();
  }
  //0 0 1 0 1 1 0 = 22
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Ltwo();
    Rtwo();
  }
  //0 0 1 0 1 1 1 = 23
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Ltwo();
    Rthree();
  }
  //0 0 1 1 0 0 0 = 24
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Ltwo();
    Rfour();
  }
  //0 0 1 1 0 0 1 = 25
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Ltwo();
    Rfive();
  }
  //0 0 1 1 0 1 0 = 26
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Ltwo();
    Rsix();
  }
  //0 0 1 1 0 1 1 = 27
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Ltwo();
    Rseven();
  }
  //0 0 1 1 1 0 0 = 28
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Ltwo();
    Reight();
  }
  //0 0 1 1 1 0 1 = 29
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Ltwo();
    Rnine();
  }
  //0 0 1 1 1 1 0 = 30
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lthree();
    Rzero();
  }
  //0 0 1 1 1 1 1 = 31
  if (digitalRead(X6) == LOW && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lthree();
    Rone();
  }
  //0 1 0 0 0 0 0 = 32
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lthree();
    Rtwo();
  }
  //0 1 0 0 0 0 1 = 33
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lthree();
    Rthree();
  }
  //0 1 0 0 0 1 0 = 34
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lthree();
    Rfour();
  }
  //0 1 0 0 0 1 1 = 35
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lthree();
    Rfive();
  }
  //0 1 0 0 1 0 0 = 36
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lthree();
    Rsix();
  }
  //0 1 0 0 1 0 1 = 37
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lthree();
    Rseven();
  }
  //0 1 0 0 1 1 0 = 38
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lthree();
    Reight();
  }
  //0 1 0 0 1 1 1 = 39
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lthree();
    Rnine();
  }
  //0 1 0 1 0 0 0 = 40
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lfour();
    Rzero();
  }
  //0 1 0 1 0 0 1 = 41
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lfour();
    Rone();
  }
  //0 1 0 1 0 1 0 = 42
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lfour();
    Rtwo();
  }
  //0 1 0 1 0 1 1 = 43
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lfour();
    Rthree();
  }
  //0 1 0 1 1 0 0 = 44
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lfour();
    Rfour();
  }
  //0 1 0 1 1 0 1 = 45
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lfour();
    Rfive();
  }
  //0 1 0 1 1 1 0 = 46
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lfour();
    Rsix();
  }
  //0 1 0 1 1 1 1 = 47
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lfour();
    Rseven();
  }
  //0 1 1 0 0 0 0 = 48
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lfour();
    Reight();
  }
  //0 1 1 0 0 0 1 = 49
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lfour();
    Rnine();
  }
  //0 1 1 0 0 1 0 = 50
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lfive();
    Rzero();
  }
  //0 1 1 0 0 1 1 = 51
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lfive();
    Rone();
  }
  //0 1 1 0 1 0 0 = 52
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lfive();
    Rtwo();
  }
  //0 1 1 0 1 0 1 = 53
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lfive();
    Rthree();
  }
  //0 1 1 0 1 1 0 = 54
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lfive();
    Rfour();
  }
  //0 1 1 0 1 1 1 = 55
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lfive();
    Rfive();
  }
  //0 1 1 1 0 0 0 = 56
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lfive();
    Rsix();
  }
  //0 1 1 1 0 0 1 = 57
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lfive();
    Rseven();
  }
  //0 1 1 1 0 1 0 = 58
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lfive();
    Reight();
  }
  //0 1 1 1 0 1 1 = 59
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lfive();
    Rnine();
  }
  //0 1 1 1 1 0 0 = 60
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lsix();
    Rzero();
  }
  //0 1 1 1 1 0 1 = 61
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lsix();
    Rone();
  }
  //0 1 1 1 1 1 0 = 62
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lsix();
    Rtwo();
  }
  //0 1 1 1 1 1 1 = 63
  if (digitalRead(X6) == LOW && digitalRead(X5) == HIGH && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lsix();
    Rthree();
  }
  //1 0 0 0 0 0 0 = 64
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lsix();
    Rfour();
  }
  //1 0 0 0 0 0 1 = 65
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lsix();
    Rfive();
  }
  //1 0 0 0 0 1 0 = 66
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lsix();
    Rsix();
  }
  //1 0 0 0 0 1 1 = 67
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lsix();
    Rseven();
  }
  //1 0 0 0 1 0 0 = 68
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lsix();
    Reight();
  }
  //1 0 0 0 1 0 1 = 69
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lsix();
    Rnine();
  }
  //1 0 0 0 1 1 0 = 70
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lseven();
    Rzero();
  }
  //1 0 0 0 1 1 1 = 71
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lseven();
    Rone();
  }
  //1 0 0 1 0 0 0 = 72
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lseven();
    Rtwo();
  }
  //1 0 0 1 0 0 1 = 73
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lseven();
    Rthree();
  }
  //1 0 0 1 0 1 0 = 74
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lseven();
    Rfour();
  }
  //1 0 0 1 0 1 1 = 75
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lseven();
    Rfive();
  }
  //1 0 0 1 1 0 0 = 76
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lseven();
    Rsix();
  }
  //1 0 0 1 1 0 1 = 77
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lseven();
    Rseven();
  }
  //1 0 0 1 1 1 0 = 78
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lseven();
    Reight();
  }
  //1 0 0 1 1 1 1 = 79
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == LOW && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lseven();
    Rnine();
  }
  //1 0 1 0 0 0 0 = 80
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Leight();
    Rzero();
  }
  //1 0 1 0 0 0 1 = 81
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Leight();
    Rone();
  }
  //1 0 1 0 0 1 0 = 82
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Leight();
    Rtwo();
  }
  //1 0 1 0 0 1 1 = 83
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Leight();
    Rthree();
  }
  //1 0 1 0 1 0 0 = 84
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Leight();
    Rfour();
  }
  //1 0 1 0 1 0 1 = 85
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Leight();
    Rfive();
  }
  //1 0 1 0 1 1 0 = 86
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Leight();
    Rsix();
  }
  //1 0 1 0 1 1 1 = 87
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == LOW && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Leight();
    Rseven();
  }
  //1 0 1 1 0 0 0 = 88
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Leight();
    Reight();
  }
  //1 0 1 1 0 0 1 = 88
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Leight();
    Rnine();
  }
  //1 0 1 1 0 1 0 = 90
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lnine();
    Rzero();
  }
  //1 0 1 1 0 1 1 = 91
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lnine();
    Rone();
  }
  //1 0 1 1 1 0 0 = 92
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lnine();
    Rtwo();
  }
  //1 0 1 1 1 0 1 = 93
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lnine();
    Rthree();
  }
  //1 0 1 1 1 1 0 = 94
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lnine();
    Rfour();
  }
  //1 0 1 1 1 1 1 = 95
  if (digitalRead(X6) == HIGH && digitalRead(X5) == LOW && digitalRead(X4) == HIGH && digitalRead(X3) == HIGH && digitalRead(X2) == HIGH && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lnine();
    Rfive();
  }
  //1 1 0 0 0 0 0 = 96
  if (digitalRead(X6) == HIGH && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == LOW) {
    Lnine();
    Rsix();
  }
  //1 1 0 0 0 0 1 = 97
  if (digitalRead(X6) == HIGH && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == LOW && digitalRead(X0) == HIGH) {
    Lnine();
    Rseven();
  }
  //1 1 0 0 0 1 0 = 98
  if (digitalRead(X6) == HIGH && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == LOW) {
    Lnine();
    Reight();
  }
  //1 1 0 0 0 1 1 = 99
  if (digitalRead(X6) == HIGH && digitalRead(X5) == HIGH && digitalRead(X4) == LOW && digitalRead(X3) == LOW && digitalRead(X2) == LOW && digitalRead(X1) == HIGH && digitalRead(X0) == HIGH) {
    Lnine();
    Rnine();
  }
  //else
  if (digitalRead(X6) == HIGH && digitalRead(X5) == HIGH && (digitalRead(X4) == HIGH || digitalRead(X4) == LOW) && (digitalRead(X3) == HIGH || digitalRead(X3) == LOW) && digitalRead(X2) == HIGH && (digitalRead(X1) == HIGH || digitalRead(X1) == LOW) && (digitalRead(X0) == HIGH || digitalRead(X0) == LOW)) {
    LE();
    RR();
    digitalWrite(LED_R, HIGH);
  }
  digitalWrite(LED_R, LOW);
}

void Lzero() {
  //forms number 0 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  ON);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  OFF);
  digitalWrite(LDsegmentDP, OFF);
}

void Rzero() {
  //forms number 0 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  ON);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  OFF);
  digitalWrite(RDsegmentDP, OFF);
}

void Lone() {
  //forms number 1 on the left display
  digitalWrite(LDsegmentA,  OFF);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  OFF);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  OFF);
  digitalWrite(LDsegmentG,  OFF);
  digitalWrite(LDsegmentDP, OFF);
}

void Rone() {
  //forms number 1 on the right display
  digitalWrite(RDsegmentA,  OFF);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  OFF);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  OFF);
  digitalWrite(RDsegmentG,  OFF);
  digitalWrite(RDsegmentDP, OFF);
}

void Ltwo() {
  //forms number 2 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  OFF);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  ON);
  digitalWrite(LDsegmentF,  OFF);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Rtwo() {
  //forms number 2 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  OFF);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  ON);
  digitalWrite(RDsegmentF,  OFF);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Lthree() {
  //forms number 3 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  OFF);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Rthree() {
  //forms number 3 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  OFF);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Lfour() {
  //forms number 4 on the left display
  digitalWrite(LDsegmentA,  OFF);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  OFF);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Rfour() {
  //forms number 4 on the right display
  digitalWrite(RDsegmentA,  OFF);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  OFF);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Lfive() {
  //forms number 5 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  OFF);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Rfive() {
  //forms number 5 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  OFF);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Lsix() {
  //forms number 6 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  OFF);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  ON);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Rsix() {
  //forms number 6 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  OFF);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  ON);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Lseven() {
  //forms number 7 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  OFF);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  OFF);
  digitalWrite(LDsegmentG,  OFF);
  digitalWrite(LDsegmentDP, OFF);
}

void Rseven() {
  //forms number 7 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  OFF);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  OFF);
  digitalWrite(RDsegmentG,  OFF);
  digitalWrite(RDsegmentDP, OFF);
}

void Leight() {
  //forms number 8 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  ON);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Reight() {
  //forms number 8 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  ON);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Lnine() {
  //forms number 9 on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  ON);
  digitalWrite(LDsegmentC,  ON);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, OFF);
}

void Rnine() {
  //forms number 9 on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  ON);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, OFF);
}

void Ldot() {
  //turns ON dot on the left display
  digitalWrite(LDsegmentA,  OFF);
  digitalWrite(LDsegmentB,  OFF);
  digitalWrite(LDsegmentC,  OFF);
  digitalWrite(LDsegmentD,  OFF);
  digitalWrite(LDsegmentE,  OFF);
  digitalWrite(LDsegmentF,  OFF);
  digitalWrite(LDsegmentG,  OFF);
  digitalWrite(LDsegmentDP, ON);
}

void Rdot() {
  //turns ON dot on the right display
  digitalWrite(RDsegmentA,  OFF);
  digitalWrite(RDsegmentB,  OFF);
  digitalWrite(RDsegmentC,  OFF);
  digitalWrite(RDsegmentD,  OFF);
  digitalWrite(RDsegmentE,  OFF);
  digitalWrite(RDsegmentF,  OFF);
  digitalWrite(RDsegmentG,  OFF);
  digitalWrite(RDsegmentDP, ON);
}

void LE() {
  //forms letter "E" on the left display
  digitalWrite(LDsegmentA,  ON);
  digitalWrite(LDsegmentB,  OFF);
  digitalWrite(LDsegmentC,  OFF);
  digitalWrite(LDsegmentD,  ON);
  digitalWrite(LDsegmentE,  ON);
  digitalWrite(LDsegmentF,  ON);
  digitalWrite(LDsegmentG,  ON);
  digitalWrite(LDsegmentDP, ON);
}

void RR() {
  //forms letter "R" on the right display
  digitalWrite(RDsegmentA,  ON);
  digitalWrite(RDsegmentB,  ON);
  digitalWrite(RDsegmentC,  ON);
  digitalWrite(RDsegmentD,  OFF);
  digitalWrite(RDsegmentE,  ON);
  digitalWrite(RDsegmentF,  ON);
  digitalWrite(RDsegmentG,  ON);
  digitalWrite(RDsegmentDP, ON);
}

void segmentTest() {
  //testing both displays
  digitalWrite(LDsegmentA, ON);
  delay(setdelay);
  digitalWrite(LDsegmentA, OFF);
  digitalWrite(LDsegmentB, ON);
  delay(setdelay);
  digitalWrite(LDsegmentB, OFF);
  digitalWrite(LDsegmentC, ON);
  delay(setdelay);
  digitalWrite(LDsegmentC, OFF);
  digitalWrite(LDsegmentD, ON);
  delay(setdelay);
  digitalWrite(LDsegmentD, OFF);
  digitalWrite(LDsegmentE, ON);
  delay(setdelay);
  digitalWrite(LDsegmentE, OFF);
  digitalWrite(LDsegmentF, ON);
  delay(setdelay);
  digitalWrite(LDsegmentF, OFF);
  digitalWrite(LDsegmentG, ON);
  delay(setdelay);
  digitalWrite(LDsegmentG, OFF);
  digitalWrite(LDsegmentDP, ON);
  delay(setdelay);
  digitalWrite(LDsegmentDP, OFF);
  digitalWrite(RDsegmentA, ON);
  delay(setdelay);
  digitalWrite(RDsegmentA, OFF);
  digitalWrite(RDsegmentB, ON);
  delay(setdelay);
  digitalWrite(RDsegmentB, OFF);
  digitalWrite(RDsegmentC, ON);
  delay(setdelay);
  digitalWrite(RDsegmentC, OFF);
  digitalWrite(RDsegmentD, ON);
  delay(setdelay);
  digitalWrite(RDsegmentD, OFF);
  digitalWrite(RDsegmentE, ON);
  delay(setdelay);
  digitalWrite(RDsegmentE, OFF);
  digitalWrite(RDsegmentF, ON);
  delay(setdelay);
  digitalWrite(RDsegmentF, OFF);
  digitalWrite(RDsegmentG, ON);
  delay(setdelay);
  digitalWrite(RDsegmentG, OFF);
  digitalWrite(RDsegmentDP, ON);
  delay(setdelay);
  digitalWrite(RDsegmentDP, OFF);
}