#include <Keypad.h>

char keys[4][4] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};
uint8_t colPins[4] = { 5, 4, 3, 2 }; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[4] = { 9, 8, 7, 6 }; // Pins connected to R1, R2, R3, R4

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, 4, 4);
const int seg7[8] = {A0,A1,A2,A3,A4,A5,12,A11};
const bool Number[14][7]={0,0,0,0,0,0,1,//0
         1,0,0,1,1,1,1,//1
         0,0,1,0,0,1,0,//2
         0,0,0,0,1,1,0,//3
         1,0,0,1,1,0,0,//4
         0,1,0,0,1,0,0,//5
         0,1,0,0,0,0,0,//6
         0,0,0,1,1,1,1,//7
         0,0,0,0,0,0,0,//8
         0,0,0,0,1,0,0,//9
         0,0,0,1,0,0,0,//A
         1,1,0,0,0,0,0,//B
         0,1,1,0,0,0,1,//C
         1,0,0,0,0,1,0,//D
         };
  
bool st_SW1;
int x1=0;
int y;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  for(int i=0;i<8;i++){  pinMode(seg7[i], OUTPUT); }
  for(int i=0;i<8;i++){  digitalWrite(seg7[i],HIGH);}
}

void loop() {
  // put your main code here, to run repeatedly:
  char key = keypad.getKey();
  if (key != NO_KEY) {
    Serial.println(key);
  }
  if(key == '0') {
    for(int i=0;i<8;i++) {digitalWrite(seg7[i],Number[0][i]);}
    }else if(key == '1') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[1][i]);}
  }
  else if(key == '2') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[2][i]);}
  }
  else if(key == '3') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[3][i]);}
  }
  else if(key == '4') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[4][i]);}
  }
  else if(key == '5') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[5][i]);}
  }
  else if(key == '6') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[6][i]);}
  }
  else if(key == '7') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[7][i]);}
  }
  else if(key == '8') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[8][i]);}
  }
  else if(key == '9') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[9][i]);}
  }
  else if(key == 'A') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[10][i]);}
  }
  else if(key == 'B') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[11][i]);}
  }
  else if(key == 'C') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[12][i]);}
  }
  else if(key == 'D') {
    for(int i=0;i<8;i++){digitalWrite(seg7[i],Number[13][i]);}
  }
}