server modify and arduino sketch editting

src/arduino/card_scanner.ino

@@ -1,2 +1,36 @@
-void setup(){}
-void loop(){}
+// imports 
+#include <SPI.h>
+#include <MFRC522.h>
+
+
+// Pin Setting
+#define RST_PIN1 9
+#define SS_PIN1 10
+
+#define RST_PIN2 5
+#define SS_PIN2 6
+
+#define RST_PIN3 2
+#define SS_PIN3 3
+
+// RFID-Module Instances
+MFRC522 mfrc522_1(SS_PIN1, RST_PIN1);
+MFRC522 mfrc522_2(SS_PIN2, RST_PIN2);
+MFRC522 mfrc522_3(SS_PIN3, RST_PIN3);
+
+// Setup
+void setup() {
+    // Serial Begin
+  Serial.begin(9600);
+  // SPI start
+  SPI.begin();
+
+  // Initialisation of Modules
+  mfrc522_1.PCD_Init();
+  mfrc522_2.PCD_Init();
+  mfrc522_3.PCD_Init();
+}
+
+void loop() {
+  // reading of triple signal
+}