Rename Projekt.ino to Projekt_Arduino.ino

Rename Projekt.ino to Projekt_Arduino.ino

- Rename the main sketch file and adjust references accordingly.
- Clean up Config.h spacing and delete unused turn‑signal constants.
- Remove direction‑related LCD character data and its update logic.
- Introduce Display::startOrEnd to control LCD power on/off.
- Simplify display initialization and eliminate the old delay in the
  loop.
- Add serial debug output for the car enable state.

Display.cpp

@@ -2,22 +2,23 @@
 
 void Display::begin(int cols, int rows) {
   _lcd.begin(cols, rows);
-
-  _lcd.createChar(CHAR_LEFT, _leftChar);
-  _lcd.createChar(CHAR_RIGHT, _rightChar);
-  _lcd.createChar(CHAR_LEFT_BLINK, _leftCharBlink);
-  _lcd.createChar(CHAR_RIGHT_BLINK, _rightCharBlink);
+  _lcd.noDisplay();
 
   _lcd.setCursor(0, 0);
   _lcd.print("km/h: 000 | ");
-  _lcd.write((uint8_t)CHAR_LEFT);
-  _lcd.print(" ");
-  _lcd.write((uint8_t)CHAR_RIGHT);
-
   _lcd.setCursor(0, 1);
   _lcd.print("rpm: 0000 | G:0");
 }
 
+void Display::startOrEnd(bool enable) {
+  if (enable) {
+    delay(3000);
+    _lcd.display();
+  } else {
+    _lcd.noDisplay();
+  }
+}
+
 void Display::updateSpeed(int kmh) {
   if (kmh < 0) kmh = 0;
   if (kmh > 999) kmh = 999;
@@ -44,22 +45,3 @@ void Display::updateGear(char gearChar) {
   _lcd.print(gearChar);
   _lcd.print(' ');
 }
-
-// void Display::updateDirection(bool leftOn, bool rightOn) {
-//   if (leftOn && rightOn) {
-//     _lcd.setCursor(12, 0);
-//     _lcd.write((uint8_t)CHAR_LEFT);
-//     _lcd.print(' ');
-//     _lcd.write((uint8_t)CHAR_RIGHT);
-//     return;
-//   }
-
-//   unsigned long now = millis();
-//   bool leftBlink = leftOn && ((now / 1000UL) % 2 == 0);
-//   bool rightBlink = rightOn && ((now / 1000UL) % 2 == 0);
-
-//   _lcd.setCursor(12, 0);
-//   _lcd.write((uint8_t)(leftBlink ? CHAR_LEFT_BLINK : CHAR_LEFT));
-//   _lcd.print(' ');
-//   _lcd.write((uint8_t)(rightBlink ? CHAR_RIGHT_BLINK : CHAR_RIGHT));
-// }