init RFID

hobu_scan_for_tags/app.js

@@ -0,0 +1,148 @@
+var Tinkerforge = require('../Tinkerforge')
+,   Conf        = require('./config.json')
+,   Helper      = require('../Adawim/helper')
+,   Log         = require('../Adawim/logging')
+,   http        = require('http');
+
+
+Helper.each(Conf.items, function(item) {
+  connect(item);
+});
+
+var lastTagID = '';
+var timeOutForHoldingLastTagID = null;
+const timeOutForHoldingLastTagIDInMillis = 5000;
+
+/* private */
+function reconnect(item) {
+  Log.debug('Reconnect ' + item.host);
+  setTimeout(function() { connect(item) }, 10000);
+}
+
+/* private */
+function connect(item) {
+  var HOST = item.host;
+  var PORT = item.port;
+  var UID = item.uid;
+
+  Log.log('Init ' + UID + ' @' + HOST);
+  
+  var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
+  
+  var counter = 0;
+  var readyForNextNotification = true;
+  
+  ipcon.connect(HOST, PORT,
+    function (error) {
+    
+      /*
+        IPConnection.ERROR_ALREADY_CONNECTED = 11
+        IPConnection.ERROR_NOT_CONNECTED = 12
+        IPConnection.ERROR_CONNECT_FAILED = 13
+        IPConnection.ERROR_INVALID_FUNCTION_ID = 21
+        IPConnection.ERROR_TIMEOUT = 31
+        IPConnection.ERROR_INVALID_PARAMETER = 41
+        IPConnection.ERROR_FUNCTION_NOT_SUPPORTED = 42
+        IPConnection.ERROR_UNKNOWN_ERROR = 43
+      */
+
+      Log.error('Error @'+HOST+': ' + error);
+      
+      if(error === 13) {
+        reconnect(item);
+      }
+    }
+  ); // Connect to brickd
+  // Don't use device before ipcon is connected
+  
+  ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
+    function (connectReason) {
+
+      switch(connectReason) {
+      case Tinkerforge.IPConnection.CONNECT_REASON_REQUEST:
+        Log.log('Connect by request for '+UID+' @'+HOST);
+        break;
+      case Tinkerforge.IPConnection.CONNECT_REASON_AUTO_RECONNECT:
+        Log.log('Connect by auto-reconnect for '+UID+' @'+HOST);
+        break;
+      }
+
+      connectRFIDReader(item, ipcon);
+    }
+  );
+  
+  process.on( 'SIGINT', function() {
+    Log.log( "Gracefully disconnect " + HOST );
+    ipcon.disconnect();
+    process.exit( );
+  });
+}
+
+/* private */
+function connectRFIDReader(item, ipcon) {
+  var UID = item.uid;
+  var nr = new Tinkerforge.BrickletNFCRFID(UID, ipcon); // Create device object
+  var tagType = 0;
+  
+  // start scan loop
+  nr.requestTagID(Tinkerforge.BrickletNFCRFID.TAG_TYPE_MIFARE_CLASSIC);
+  
+  // Register state changed callback
+  nr.on(Tinkerforge.BrickletNFCRFID.CALLBACK_STATE_CHANGED,
+    // Callback function for state changed callback
+    
+    /*
+      STATE:
+      BrickletNFCRFID.STATE_INITIALIZATION = 0
+      BrickletNFCRFID.STATE_IDLE = 128
+      BrickletNFCRFID.STATE_ERROR = 192
+      BrickletNFCRFID.STATE_REQUEST_TAG_ID = 2
+      BrickletNFCRFID.STATE_REQUEST_TAG_ID_READY = 130
+      BrickletNFCRFID.STATE_REQUEST_TAG_ID_ERROR = 194
+      BrickletNFCRFID.STATE_AUTHENTICATING_MIFARE_CLASSIC_PAGE = 3
+      BrickletNFCRFID.STATE_AUTHENTICATING_MIFARE_CLASSIC_PAGE_READY = 131
+      BrickletNFCRFID.STATE_AUTHENTICATING_MIFARE_CLASSIC_PAGE_ERROR = 195
+      BrickletNFCRFID.STATE_WRITE_PAGE = 4
+      BrickletNFCRFID.STATE_WRITE_PAGE_READY = 132
+      BrickletNFCRFID.STATE_WRITE_PAGE_ERROR = 196
+      BrickletNFCRFID.STATE_REQUEST_PAGE = 5
+      BrickletNFCRFID.STATE_REQUEST_PAGE_READY = 133
+      BrickletNFCRFID.STATE_REQUEST_PAGE_ERROR = 197
+    */
+    
+    function (state, idle) {
+      if(idle) {
+        tagType = (tagType + 1) % 3;
+        nr.requestTagID(tagType);
+      }
+
+      if(state == Tinkerforge.BrickletNFCRFID.STATE_REQUEST_TAG_ID_READY) {
+        nr.getTagID(
+          function (tagType, tidLength, tid) {
+            var s = 'Found tag of type ' + tagType +
+                    ' with ID [' + tid[0].toString(16);
+            var tagID = tid[0].toString(16);
+
+            for(var i = 1; i < tidLength; i++) {
+              s += ' ' + tid[i].toString(16);
+              tagID += ' ' + tid[i].toString(16);
+            }
+
+            s += ']';
+            
+            if(lastTagID !== tagID) {
+              Log.log(s);
+              lastTagID = tagID;
+              
+              clearTimeout(timeOutForHoldingLastTagID);
+              timeOutForHoldingLastTagID = setTimeout(function() { lastTagID = ''; }, timeOutForHoldingLastTagIDInMillis);
+            }
+          },
+          function (error) {
+            Log.error('Error: ' + error);
+          }
+        );
+      }
+    }
+  );
+}

hobu_scan_for_tags/config.json

@@ -0,0 +1,9 @@
+{
+  "items": [
+    {
+    	"host": "localhost",
+    	"port": 4223,
+    	"uid": "ury"
+    }
+  ]
+}