#include "SevSeg.h"
#include "Keypad.h"

const byte ROWS = 4; 
const byte COLS = 3; 

char keys[ROWS][COLS] = {
{'1','2','A'},
{'3','4','B'},
{'5','6','C'},
{'7','8','D'}
};
byte rowPins[ROWS] = {A7, A6, A5, A4};
byte colPins[COLS] = {A3, A2, A1};
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
int keyNum = 0;
  char keyChar = 0;

SevSeg sevseg;
void setup() {
  Serial.begin(9600);
  byte numDigits = 4;
  byte digitPins[] = {13, 12, 11, 10};
  byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 9};
  bool resistorsOnSegments = false;
  byte hardwareConfig = COMMON_ANODE;
  bool updateWithDelays = false;
  bool leadingZeros = false; 
  bool disableDecPoint = false; 

  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
  updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(100);

  sevseg.setChars("07.09");

  

  }




void loop() {
  sevseg.refreshDisplay();
  unsigned long timer = millis();
  if (timer == 3000) {
    sevseg.blank();
  }
  char key = keypad.getKey();
  if (key) 
  { 
    if (key == 'A') {
      sevseg.setChars("A");
    }
    else if (key == 'B') {
      sevseg.setChars("B");
    }
    else if (key == 'C') {
      sevseg.setChars("C");
    }
    else if (key == 'D') {
      sevseg.setChars("D");
    }
    else {
      keyNum = (int(key)- 48);
      sevseg.setNumber(keyNum, 0);
    }
    Serial.println(key);
    Serial.print("");
    sevseg.refreshDisplay();
  }
  }