Cleaned up repository

- only moving files around

esp-firmware/src/mfrc_version.h

@@ -0,0 +1,64 @@
+
+#include <SPI.h>
+#include <MFRC522.h>
+
+#define RST_PIN 5           // Configurable, see typical pin layout above
+#define SS_PIN 23          // Configurable, see typical pin layout above
+
+MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance
+
+//*****************************************************************************************//
+void setup() {
+  Serial.begin(115200);
+  SPI.begin(22, 19, 18, 23); // Init SPI bus
+  mfrc522.PCD_Init();                                              // Init MFRC522 card
+}
+/**
+ * Helper routine to dump a byte array as hex values to Serial.
+ */
+void PrintHex(byte *buffer, byte bufferSize) {
+  for (byte i = 0; i < bufferSize; i++) {
+    Serial.print(buffer[i] < 0x10 ? " 0" : " ");
+    Serial.print(buffer[i], HEX);
+  }
+}
+
+//*****************************************************************************************//
+
+void loop() {
+
+  // Look for new cards
+  if ( !mfrc522.PICC_IsNewCardPresent()) {
+    return;
+  }
+  if ( !mfrc522.PICC_ReadCardSerial()) {
+    return;
+  }
+  
+  //mfrc522.PICC_DumpDetailsToSerial(&(mfrc522.uid)); //dump some details about the card
+  
+  Serial.print("NewCard");
+  PrintHex(mfrc522.uid.uidByte, mfrc522.uid.size);
+  Serial.println("");
+
+  // Check if Card was removed
+  bool cardRemoved = false;
+  int counter = 0;
+  bool current, previous;
+  previous = !mfrc522.PICC_IsNewCardPresent();
+    
+  while(!cardRemoved){
+    current =!mfrc522.PICC_IsNewCardPresent();
+
+    if (current && previous) counter++;
+
+    previous = current;
+    cardRemoved = (counter>2);      
+    delay(50);
+  }
+  
+  Serial.println("Card was removed");
+  delay(500); //change value if you want to read cards faster
+  mfrc522.PICC_HaltA();
+  mfrc522.PCD_StopCrypto1();
+}