/*
PinbelegungESP32-DevKitC Pin Layout auf Seite 6 von:
https://asset.conrad.com/media10/add/160267/c1/-/gl/002490159DS00/adatlap-2490159-espressif-fejlesztoi-panel-esp32-devkitc-vie.pdf

Dieses Programm ist zum testen der Grundlagen und
enthält Codefragmente von:

https://www.youtube.com/watch?v=90qKWsqUikg
https://github.com/Edistechlab/DIY-Heimautomation-Buch/blob/master/Aktoren/7_Segment_Display_No_library/7_Segment_Display_No_library.ino
https://www.youtube.com/@EdisTechlab

Dispplay   Pin
Funktion   ESP32P
Seg_A      21
Seg_B      23
Seg_C      17
Seg_D      18
Seg_E      19
Seg_F      22
Seg_G      16
Seg_DP     5

Sel0        4
Sel1        0
Enable      2
*/

int pinArray1[] = {21, 23, 17, 18, 19, 22, 16, 5};
int pinArray2[] = {0, 4 };
int VarDig0;
int VarDig1;
int VarDig2;
int VarDig3;
int VarX;

int numArray[11][8] = {  
  { 1,1,1,1,1,1,0,0 },  // 0
  { 0,1,1,0,0,0,0,0 },  // 1
  { 1,1,0,1,1,0,1,0 },  // 2
  { 1,1,1,1,0,0,1,0 },  // 3
  { 0,1,1,0,0,1,1,0 },  // 4
  { 1,0,1,1,0,1,1,0 },  // 5
  { 1,0,1,1,1,1,1,0 },  // 6
  { 1,1,1,0,0,0,0,0 },  // 7
  { 1,1,1,1,1,1,1,0 },  // 8
  { 1,1,1,0,0,1,1,0 },  // 9
  { 0,0,0,0,0,0,0,1 }   // Punkt
}; 

int DigitArray[4][2] = {  
  { 1,1 },  // Digit 1
  { 1,0 },  // Digit 2
  { 0,1 },  // Digit 3
  { 0,0 },  // Digit 4
}; 

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!\nIch zähle von 0 bis 9999");

  pinMode(2, OUTPUT);
  digitalWrite(2, 1);
  pinMode(0, OUTPUT);
  digitalWrite(0, 0);
  pinMode(4, OUTPUT);
  digitalWrite(4, 0);

  for (int i = 0; i < 8; i++) {
    pinMode(pinArray1[i], OUTPUT);
    digitalWrite(pinArray1[i], 0);
  }

}
/* -- Alter Programmcode
void numWrite1(int number) {
  for (int i = 0; i < 8; i++) {
    digitalWrite(pinArray1[i], 1 - numArray[number][i]);
  }
}

void numWrite2(int number) {
  for (int i = 0; i < 2; i++) {
    digitalWrite(pinArray2[i], DigitArray[number][i]);
  }
}
*/
void loop() {
  // put your main code here, to run repeatedly:

  // Zähler 0 - 9999
  VarDig0 += 1;
  if ( VarDig0 > 9 ) { VarDig0 = 0; VarDig1 +=1;
    if ( VarDig1 > 9 ) { VarDig1 = 0; VarDig2 +=1;
      if ( VarDig2 > 9 ) { VarDig2 = 0; VarDig3 +=1;
        if ( VarDig3 > 9 ) { VarDig3 = 0; 
  }}}}

  /* Anzeige des Zählers
  VarX = VarDig3;
  VarX = VarX * 10 + VarDig2;
  VarX = VarX * 10 + VarDig1;
  VarX = VarX * 10 + VarDig0;
  Serial.println(VarX);
*/

  for (int forwiederholung = 0; forwiederholung < 10; forwiederholung++) {
    for (int fordigit=0;fordigit<4;fordigit++) {
      switch (fordigit) {
        case 0:
          VarX = VarDig0;
        break;
        case 1:
          VarX = VarDig1;
        break;
        case 2:
          VarX = VarDig2;
        break;
        case 3:
          VarX = VarDig3;
        //break;
      }
      for (int forsegment = 0; forsegment < 8; forsegment++) {
        digitalWrite(pinArray1[forsegment], 1 - numArray[VarX][forsegment]);
      }
      for (int forselect = 0; forselect < 2; forselect++) {
        digitalWrite(pinArray2[forselect], DigitArray[fordigit][forselect]);
      }
      digitalWrite(2, 0);
      delay(25);
      digitalWrite(2, 1);
    }
    /* -- Alter Programmcode
    numWrite1(Var0);
    numWrite2(0);
    digitalWrite(2, 0);
    delay(25);
    digitalWrite(2, 1);

    numWrite1(Var1);
    numWrite2(1);
    digitalWrite(2, 0);
    delay(25);
    digitalWrite(2, 1);

    numWrite1(Var2);
    numWrite2(2);
    digitalWrite(2, 0);
    delay(25);
    digitalWrite(2, 1);

    numWrite1(Var3);
    numWrite2(3);
    digitalWrite(2, 0);
    delay(25);
    digitalWrite(2, 1);
    */
  }
}