Enable RFID UID output and tidy car mass input

Projekt_Arduino.ino

@@ -21,17 +21,11 @@ bool seatBelts = false;
 void setup() {
   Serial.begin(9600);
 
-    // -----------------------------------------------------------------
-    // 1. Ask the user for the car mass (kg) via the Serial monitor.
-    //    We block only until a valid number is received – this is OK
-    //    because it happens once at startup.
-    // -----------------------------------------------------------------
   Serial.println(F("Enter car mass in kg (e.g. 1200):"));
   while (true) {
-      // Wait until something is typed
     if (Serial.available() > 0) {
-        float mass = Serial.parseFloat();          // reads the number
+      float mass = Serial.parseFloat();
-        if (mass > 0) {                            // basic sanity check
+      if (mass > 0) {
         engine.setCarMass(mass);
         Serial.print(F("Car mass set to "));
         Serial.print(mass);
@@ -43,7 +37,6 @@ void setup() {
     }
   }
 
-
   pinMode(IN_1, OUTPUT);
   pinMode(IN_2, OUTPUT);
   pinMode(ENA_1, OUTPUT);

RFID.cpp

@@ -11,8 +11,6 @@ void RFIDReader::begin() {
 bool RFIDReader::check() {
   if (!_rfid.PICC_IsNewCardPresent()) return false;
   if (!_rfid.PICC_ReadCardSerial()) return false;
-  // _rfid.PICC_HaltA();          // stop the tag
-  // _rfid.PCD_StopCrypto1();     // clear RC522 crypto
   return true;
 }
 
@@ -31,10 +29,10 @@ bool RFIDReader::matches(const byte* expectedUid, byte expectedSize) const {
 
 void RFIDReader::printUID() const {
   Serial.println(F("RFID Tag UID:"));
-  // for (byte i = 0; i < _rfid.uid.size; i++) {
+  for (byte i = 0; i < _rfid.uid.size; i++) {
-  //   Serial.print(_rfid.uid.uidByte[i] < 0x10 ? " 0" : " ");
+    Serial.print(_rfid.uid.uidByte[i] < 0x10 ? " 0" : " ");
-  //   Serial.print(_rfid.uid.uidByte[i], HEX);
+    Serial.print(_rfid.uid.uidByte[i], HEX);
-  // }
+  }
 }
 
 const byte* RFIDReader::getUID() const {