- added RFID tag reading with the MFRC522 lib

app/database.py

@@ -76,6 +76,24 @@ def get_user_by_name(name):
     print u
     return u
 
+def get_user_by_rfid(rfidid):
+    row = query_db("SELECT * FROM USERS WHERE RFID_ID = ?", [rfidid], one=True)
+    u = User()
+    if row is None:
+         return None
+    u.id=row[0]
+    u.name=row[1]
+    u.password=row[2]
+    u.longname=row[3]
+    u.email=row[4]
+    u.rfid_id=row[5]
+    u.isblack=row[6]
+    u.isbaron=row[7]
+    u.isshown=row[8]
+    u.autoblack=row[9]
+    print u
+    return u
+
 def get_users():
     rows = query_db("SELECT * FROM USERS")
     users = []

app/gui.py

@@ -6,7 +6,8 @@ from plot import *
 from database import *
 from settings import *
 import flask as fla
-
+if settings.enableRFID:
+    import rfid
 
 class MainWindow(wx.Frame):
 
@@ -17,8 +18,11 @@ class MainWindow(wx.Frame):
         self.panelUsers = PanelUsers(self)
         self.panelThanks = PanelThanks(self)
         self.panelSorry = PanelSorry(self)
+        self.panelRFID = PanelRFID(self)
+
+        if settings.enableRFID:
+            self.rfid = rfid.RFID(self.on_rfid)
 
-        self.settings = Settings()
         self.user = User()
         self.drinkl = str()
         self.active = 0
@@ -57,10 +61,23 @@ class MainWindow(wx.Frame):
         for user in get_users():
             if user.longname == longn:
                 self.user = user
-        if not self.user.isblack:
-            self.active = 1 #getränkeauswahl
+        if self.user.isblack:
+            self.active = 4 #Sorry Bro
         else:
-            self.active = 4 #Sorry Bro Panel
+            self.active = 1 #Drinks
+        self.switchPanels()
+
+    def on_rfid(self, rfidid):
+        if self.active != 0:
+            return
+        self.user = get_user_by_rfid(rfidid)
+        if self.user is None:
+            self.panelRFID.label_1.SetLabel(rfidid)
+            self.active = 5 #TODO: Screen showing RFID ID
+        elif self.user.isblack:
+            self.active = 4 #Sorry Bro
+        else:
+            self.active = 1 #Drinks
         self.switchPanels()
 
     def onProduct(self, e):
@@ -80,6 +97,7 @@ class MainWindow(wx.Frame):
         self.panelUsers.Hide()
         self.panelThanks.Hide()
         self.panelSorry.Hide()
+        self.panelRFID.Hide()
         if self.active == 0:
             self.panelStart.Show()
         elif self.active == 1:
@@ -101,7 +119,8 @@ class MainWindow(wx.Frame):
         elif self.active == 4:
             self.panelSorry.label_1.SetLabel(self.user.longname)
             self.panelSorry.Show()
-
+        elif self.active == 5:
+            self.panelRFID.Show()
 
 class PanelStart (wx.Panel):
 
@@ -154,7 +173,7 @@ class PanelSorry (wx.Panel):
         self.Destroy()
 
 
-class PanelRfid (wx.Panel):
+class PanelRFID (wx.Panel):
 
     def __init__(self, parent):
         wx.Panel.__init__(self, parent, id=wx.ID_ANY, pos=(0, 0), size=(480, 320))

app/rfid.py

@@ -0,0 +1,37 @@
+try:
+    import MFRC522
+except:
+    print "ERROR: Need MFRC522 Library to read RFID tags, disable RFID if no reader is present!"
+    exit()
+import signal
+import thread
+
+
+class RFID:
+
+    def __init__(self, callbackf):
+        self.reader = MFRC522.MFRC522()
+        signal.signal(signal.SIGINT, self.stop)
+        self.callback = callbackf
+        self.loop = True
+        thread.start_new_thread(self.read, ())
+
+    def read(self):
+        while self.loop:
+            (status, tagtype) = self.reader.MFRC522_Request(self.reader.PICC_REQIDL)
+            print "RFID Status:", status 
+            if status == self.reader.MI_OK:
+                (status, uid) = self.reader.MFRC522_Anticoll()
+                if status == self.reader.MI_OK:
+                    uids = "0x" + "".join(format(x, '02x') for x in uid)
+                    self.callback(uids)
+                    print "RFID Detect:",uids
+
+    def start(self):
+        print "RFID reader started"
+        self.loop = True
+        thread.start_new_thread(self.read, ())
+
+    def stop(self):
+        print "RFID reader stopped"
+        self.loop = False

app/settings.py

@@ -22,7 +22,7 @@ class Settings:
         ##User Interaction
         #Gui
         self.hideGuiList = False    #Show the consumers in the gui
-        self.disableRFID = False    #Disable RFID Reading
+        self.enableRFID = False     #Enable RFID Reading
         self.allowHiding = False    #Allow a user to hide from the gui consumer list
         self.onlyOneDrink = False   #Hide selection for amount in the gui
         self.drinkLimit = 20        #Max amount of consumptions in the gui (default 20)