Enable RFID UID output and tidy car mass input

Projekt_Arduino.ino

@@ -21,28 +21,21 @@ bool seatBelts = false;
 void setup() {
   Serial.begin(9600);
 
-    // -----------------------------------------------------------------
+  Serial.println(F("Enter car mass in kg (e.g. 1200):"));
-    // 1. Ask the user for the car mass (kg) via the Serial monitor.
+  while (true) {
-    //    We block only until a valid number is received – this is OK
+    if (Serial.available() > 0) {
-    //    because it happens once at startup.
+      float mass = Serial.parseFloat();
-    // -----------------------------------------------------------------
+      if (mass > 0) {
-    Serial.println(F("Enter car mass in kg (e.g. 1200):"));
+        engine.setCarMass(mass);
-    while (true) {
+        Serial.print(F("Car mass set to "));
-      // Wait until something is typed
+        Serial.print(mass);
-      if (Serial.available() > 0) {
+        Serial.println(F(" kg"));
-        float mass = Serial.parseFloat();          // reads the number
+        break;
-        if (mass > 0) {                            // basic sanity check
+      } else {
-          engine.setCarMass(mass);
+        Serial.println(F("Invalid value – try again:"));
-          Serial.print(F("Car mass set to "));
-          Serial.print(mass);
-          Serial.println(F(" kg"));
-          break;
-        } else {
-          Serial.println(F("Invalid value – try again:"));
-        }
       }
     }
-
+  }
 
   pinMode(IN_1, OUTPUT);
   pinMode(IN_2, 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 {