SevenSegmentsDisplay Library for Arduino

sevensegments.ino

typedef struct SevenSegmentCombination {
  bool pinA;
  bool pinB;
  bool pinC;
  bool pinD;
  bool pinE;
  bool pinF;
  bool pinG;
} SevenSegmentCombination;

class SevenSegmentsDisplay {
  public:
    int pinA;
    int pinB;
    int pinC;
    int pinD;
    int pinE;
    int pinF;
    int pinG;
    int pinH;
    bool anode;
    
    SevenSegmentsDisplay(int pinA, int pinB, int pinC, int pinD, int pinE, int pinF, int pinG, int pinH, bool anode) {
      this->pinA = pinA;
      this->pinB = pinB;
      this->pinC = pinC;
      this->pinD = pinD;
      this->pinE = pinE;
      this->pinF = pinF;
      this->pinG = pinG;
      this->pinH = pinH;
      this->anode = anode;
  
      pinMode(pinA, OUTPUT);
      pinMode(pinB, OUTPUT);
      pinMode(pinC, OUTPUT);
      pinMode(pinD, OUTPUT);
      pinMode(pinE, OUTPUT);
      pinMode(pinF, OUTPUT);
      pinMode(pinG, OUTPUT);
      pinMode(pinH, OUTPUT);
    }
  
    void clearScreen() {
      bool on = !anode;
      bool off = anode;
      
      digitalWrite(pinA, off);
      digitalWrite(pinB, off);
      digitalWrite(pinC, off);
      digitalWrite(pinD, off);
      digitalWrite(pinE, off);
      digitalWrite(pinF, off);
      digitalWrite(pinG, off);
      digitalWrite(pinH, off);
    }

    void writeByCombination(SevenSegmentCombination sevenSeg) {
      bool on = !anode;
      bool off = anode;

      digitalWrite(pinA, sevenSeg.pinA ? on : off);
      digitalWrite(pinB, sevenSeg.pinB ? on : off);
      digitalWrite(pinC, sevenSeg.pinC ? on : off);
      digitalWrite(pinD, sevenSeg.pinD ? on : off);
      digitalWrite(pinE, sevenSeg.pinE ? on : off);
      digitalWrite(pinF, sevenSeg.pinF ? on : off);
      digitalWrite(pinG, sevenSeg.pinG ? on : off);
    }
  
    void writeChar(char a) {
      this->clearScreen();
      SevenSegmentCombination sevenSegCom = { false, };
      switch(a) {
#ifdef SEVENSEG_ALLOWIDENTICAL
        case 'O':
#endif
        case '0':
          sevenSegCom = {true, true, true, true, true, true, false};
          break;
        case '1':
          sevenSegCom = {false, true, true, false, false, false, false};
          break;
        case '2':
          sevenSegCom = {true, true, false, true, true, false, true};
          break;
        case '3':
          sevenSegCom = {true, true, true, true, false, false, true};
          break;
        case '4':
          sevenSegCom = {false, true, true, false, false, true, true};
          break;
#ifdef SEVENSEG_ALLOWIDENTICAL
        case 'S':
        case 's':
#endif
        case '5':
          sevenSegCom = {true, false, true, true, false, true, true};
          break;
        case '6':
          sevenSegCom = {true, false, true, true, true, true, true};
          break;
        case '7':
          sevenSegCom = {true, true, true, false, false, true, false};
          break;
        case '8':
          sevenSegCom = {true, true, true, true, true, true, true};
          break;
        case '9':
          sevenSegCom = {true, true, true, true, false, true, true};
          break;
        case 'A':
          sevenSegCom = {true, true, true, false, true, true, true};
          break;
        case 'a':
          sevenSegCom = {true, true, true, true, true, false, true};
          break;
        case 'B':
        case 'b':
          sevenSegCom = {false, false, true, true, true, true, true};
          break;
        case 'C':
          sevenSegCom = {true, false, false, true, true, true, false};
          break;
        case 'c':
          sevenSegCom = {false, false, false, true, true, false, true};
          break;
        case 'D':
        case 'd':
          sevenSegCom = {false, true, true, true, true, false, true};
          break;
        case 'E':
        case 'e':
          sevenSegCom = {true, false, false, true, true, true, true};
          break;
        case 'F':
        case 'f':
          sevenSegCom = {true, false, false, false, true, true, true};
          break;
#ifdef SEVENSEG_NONSENSE
        case 'G':
        case 'g':
          sevenSegCom = {true, false, true, true, true, true, false};
          break;
#endif
        case 'H':
        case 'h':
          sevenSegCom = {false, true, true, false, true, true, true};
          break;
        case 'I':
        case 'i':
          sevenSegCom = {false, false, false, false, true, true, false};
          break;
        case 'J':
        case 'j':
          sevenSegCom = {false, true, true, true, false, false, false};
          break;
        case 'L':
        case 'l':
          sevenSegCom = {false, false, false, true, true, true, false};
          break;
        case 'N':
        case 'n':
          sevenSegCom = {false, false, true, false, true, false, true};
          break;
        case 'o':
          sevenSegCom = {false, false, true, true, true, false, true};
          break;
        case 'P':
        case 'p':
          sevenSegCom = {true, true, false, false, true, true, true};
          break;
#ifdef SEVENSEG_ALLOWIDENTICAL
        case 'Q':
        case 'q':
          sevenSegCom = {true, true, true, false, false, true, true};
          break;
#endif
        case 'R':
        case 'r':
          sevenSegCom = {false, false, false, false, true, false, true};
          break;
        case 'T':
        case 't':
          sevenSegCom = {false, false, false, true, true, true, true};
          break;
        case 'U':
        case 'u':
          sevenSegCom = {false, true, true, true, true, true, false};
          break;
        case 'Y':
        case 'y':
          sevenSegCom = {false, true, true, true, false, true, true};
          break;
        case '-':
          sevenSegCom = {false, false, false, false, false, false, true};
          break;
        default:
          break;
      }
      this->writeByCombination(sevenSegCom);
    }
};