Tracker in eigene Klasse und AppData eingeführt

appdata.py

@@ -0,0 +1,10 @@
+"""
+Generische Applikationsdaten
+
+"""
+from tracker import Tracker
+
+class AppData():
+    def __init__(self):
+        self.shutdown = False # Globaler Ausschalter
+        self.track = Tracker('NONE')

obp60v.py

@@ -104,12 +104,14 @@ import time
 from datetime import datetime
 from nmea2000 import Device, BoatData, History, HistoryBuffer
 from nmea2000 import parser
-import nmea0183
-import pages
 import struct
 import uuid
 import json
 
+import nmea0183
+from appdata import AppData
+import pages
+
 __author__ = "Thomas Hooge"
 __copyright__ = "Copyleft 2024-2025, all rights reversed"
 __version__ = "0.2"
@@ -118,6 +120,8 @@ __status__ = "Development"
 
 cfg = {
     'cfgfile': 'obp60v.conf',
+    'logdir': '~/.local/share/obp60v',
+    'logfile': 'obp60v.log',
     'imgpath': os.path.join(sys.path[0], 'images'),
     'deviceid': 100,
     'manufcode': 2046,  # Open Boat Projects (OBP)
@@ -130,136 +134,13 @@ cfg = {
     'boat': { }
 }
 
-def mqtt_on_connect(client, userdata, flags, rc):
-    print(f"MQTT connected with result code {rc}")
-    #userdata['connect_rc'] = rc
-    if rc != 0:
-        # Result codes:
-        # 1: Connection Refused, unacceptable protocol version
-        # 2: Connection Refused, identifier rejected
-        # 3: Connection Refused, Server unavailable
-        # 4: Connection Refused, bad user name or password
-        # 5: Connection Refused, not authorized
-        #userdata['connect_ok'] = True
-        pass
-    else:
-        client.subscribe("regattahero/orgstatus/thomas")
-        client.subscribe("regattahero/racestatus/thomas/#")
-        #userdata['connect_ok'] = False
-
-def mqtt_on_message(client, userdata, msg):
-    """
-    TODO raceid über userdata? dann topic prüfen?
-    """
-    if msg.topic == "regattahero/orgstatus/thomas":
-        # kommt alle 10s
-        orgstatus = json.loads(msg.payload)
-        if orgstatus['allLogout']:
-            print("All logout received!")
-            client.disconnect()
-            sys.exit(0) # TODO nur die MQTT-Task beenden
-        if orgstatus['message']:
-            # TODO Alarm-Funktion nutzen?
-            print("Nachricht der Wettfahrtkeitung:")
-            print(orgstatus['message'])
-        print(orgstatus['races'])
-        #for r in orgstatus['races']:
-        #    print(f"Race: {r}")
-    elif msg.topic.startswith("regattahero/racestatus/thomas"):
-        # kommt alle 1s
-        # dem Topic angehängt ist noch die raceid
-        payload = json.loads(msg.payload)
-        racestatus = payload['racestatus']
-        """
-        time: negativ: Zeit vor dem Start, positiv: Zeit nach dem Start
-              in Sekunden
-        
-        Signale der Wettfahrtleitung hier anzeigen 
-           Regattaabbruch
-           Bahnverkürzung
-           Rückrufe
-        
-        """
-    else:
-        print(f"UNKNOWN TOPIC: {msg.topic}")
-        print(msg.payload)
-
-def mqtt_publish(client, topic, payload, bv_lat, bv_lon, bv_sog):
-    """
-    Payload vorbelegt als Template, so daß nur noch die veränderlichen
-    GPS-Daten eingefügt werden müssen: LAT LON SOG TIMESTAMP
-    """
-    lat = bv_lat.getValueRaw()
-    lon = bv_lon.getValueRaw()
-    sog = bv_sog.getValueRaw()
-    if lat and lon and sog:
-        payload['gps']['lat'] = round(lat, 5)
-        payload['gps']['lon'] = round(lon, 5)
-        payload['gps']['speed'] = sog
-        payload['gps']['timestamp'] = time.strftime("%Y-%m-%dT%H:%M:%S.000Z", time.gmtime())
-        
-        client.publish(topic, json.dumps(payload))
-    else:
-        print("No GPS data available. Nothing published!")
-
-def mqtt_tracker(cfg, boat):
-    import paho.mqtt.client as mqtt
-    print("MQTT tracker enabled")
-    client = mqtt.Client()
-    client.on_connect = mqtt_on_connect
-    client.on_message = mqtt_on_message
-    client.username_pw_set(username=cfg['mqtt_user'], password=cfg['mqtt_pass'])
-    try:
-        client.connect(cfg['host'], cfg['port'], 60)
-    except ConnectionRefusedError:
-        print("MQTT connection refused. Check username and password.")
-        return
-
-    topic = "regattahero/tracker/" + cfg['orgname']
-    payload = {
-        "passcode": cfg['passcode'],
-        "orgid":  cfg['orgname'],
-        "raceid": "Demo Regatta", # TODO aus Selektion einstellen 
-        "gps": {
-            "lat": 0.0,
-            "lon": 0.0,
-            "speed": 0.0,
-            "age": 1000,
-            "odo": 1000,
-            "bat": 1.0,
-            "timestamp": ""  # ISO8601 Format mit Millisekunden in UTC
-            },
-        "boat": {
-            "boatid": cfg['uuid'],
-            "sailno": boat['sailno'],
-            "team": boat['team'],
-            "boatclass": boat['class'],
-            "handicap": boat['handicap'],
-            "club": boat['club'],
-            "boatname": boat['name']
-            }
-        }
-
-    # Zugriff auf Boatdata: Referenzen für leichten schnellen Zugriff
-    bv_lat = boatdata.getRef("LAT")
-    bv_lon = boatdata.getRef("LON")
-    bv_sog = boatdata.getRef("SOG")
-
-    client.loop_start()
-    while not shutdown:
-        time.sleep(1)
-        if tracker_active:
-            mqtt_publish(client, topic, payload, bv_lat, bv_lon, bv_sog)
-    client.loop_stop()
-    client.disconnect()
-
 def rxd_n2k(device):
     setthreadtitle("N2Klistener")
     bus = can.Bus(interface='socketcan', channel=device, bitrate=250000);
     wip = False
     sc = 0
     nf = 0
-    while not shutdown:
+    while not appdata.shutdown:
         msg = bus.recv(2)
         if not msg:
             continue
@@ -332,7 +213,7 @@ def rxd_0183(devname):
         print("NMEA0183 serial port not available")
         return
     setthreadtitle("0183listener")
-    while not shutdown:
+    while not appdata.shutdown:
         raw = ser.readline().decode('ascii')
         if len(raw.strip()) == 0:
             continue
@@ -372,7 +253,7 @@ def rxd_gps(devname, devspeed):
         print("GPS serial port not available")
         return
     setthreadtitle("GPSlistener")
-    while not shutdown:
+    while not appdata.shutdown:
         try:
             msg = pynmea2.parse(ser.readline().decode('ascii'))
         except pynmea2.nmea.ParseError:
@@ -394,7 +275,7 @@ def rxd_network(address, port):
     # Wir verwenden UDP. Ein verlorenes Paket tut uns nicht weh.
     sock = socket.socket()
     sock.connect((address, port))
-    while not shutdown:
+    while not appdata.shutdown:
         time.sleep(0.5)
     sock.close()
 
@@ -433,7 +314,7 @@ def datareader(cfg, history):
     g = g_tick(1)
 
     n = 0
-    while not shutdown:
+    while not appdata.shutdown:
         time.sleep(next(g))
         # BME280 abfragen
         if cfg['bme280']:
@@ -454,8 +335,9 @@ def datareader(cfg, history):
 
 class Frontend(Gtk.Window):
 
-    def __init__(self, cfg, device, boatdata, profile):
+    def __init__(self, cfg, appdata, device, boatdata, profile):
         super().__init__()
+        self.appdata = appdata
         self.owndev = device
         self.boatdata = boatdata
         self._config = cfg['_config']
@@ -740,10 +622,10 @@ def init_profile(config, cfg, boatdata):
             # Nummer und Art ermitteln
             pageno = int(s[4:])
             pagedef[pageno] = {'type': config.get(s, "type")}
-            # Hole ein bin maximal 4 Werte je Seite 
+            # Hole ein bin maximal 6 Werte je Seite
             values = {}
             valno = 1
-            for i in (1, 2, 3, 4):
+            for i in (1, 2, 3, 4, 5, 6):
                 try:
                     values[i] = config.get(s, f"value{i}")
                 except configparser.NoOptionError:
@@ -762,10 +644,10 @@ def init_profile(config, cfg, boatdata):
             # Klasse nicht vorhanden, Seite wird nicht benutzt
             print(f"Klasse '{p['type']}' nicht gefunden")
             continue
-        c = cls(i, cfg, boatdata, *[v for v in p['values'].values()])
+        c = cls(i, cfg, appdata, boatdata, *[v for v in p['values'].values()])
         clist[i] = c
     return clist
-    
+
 def set_loglevel(nr):
     """
     Umsetzen der Nummer auf einen für "logging" passenden Wert
@@ -779,11 +661,11 @@ def set_loglevel(nr):
         nr = 0
     return level[nr]
 
-def init_logging(logdir):
+def init_logging(logdir, logfile='obp60v.log'):
     global log
     os.makedirs(logdir, exist_ok=True)
     log = logging.getLogger(os.path.basename(sys.argv[0]))
-    hdlr = logging.handlers.RotatingFileHandler(os.path.join(logdir, 'obp60v.log'), maxBytes=5242880, backupCount=5)
+    hdlr = logging.handlers.RotatingFileHandler(os.path.join(logdir, logfile), maxBytes=5242880, backupCount=5)
     formatter = logging.Formatter('%(asctime)s %(name)s %(levelname)s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
     hdlr.setFormatter(formatter)
     log.addHandler(hdlr)
@@ -797,8 +679,8 @@ if __name__ == "__main__":
 
     setproctitle("obp60v")
 
-    shutdown = False
+    # Globale Daten, u.a. auch Shutdown-Indikator
-    tracker_active = False
+    appdata = AppData()
 
     owndevice = Device(100)
     # Hardcoding device, not intended to change
@@ -867,6 +749,7 @@ if __name__ == "__main__":
     cfg['tracker']['mqtt_pass'] = config.get('tracker', 'mqtt_pass')
     cfg['tracker']['orgname'] = config.get('tracker', 'orgname')
     cfg['tracker']['passcode'] = config.get('tracker', 'passcode')
+    cfg['tracker']['logdir'] = cfg['logdir']
 
     # Boat data
     cfg['boat']['name'] = config.get('boat', 'name')
@@ -892,7 +775,7 @@ if __name__ == "__main__":
         boatdata.enableSimulation()
 
     # Protokollierung
-    init_logging(os.path.expanduser("~/.local/share/obp60v"))
+    init_logging(os.path.expanduser(cfg['logdir']), cfg['logfile'])
     log.info("Logging initialized")
 
     # Gerät initialisieren u.a. mit den genutzten Seiten
@@ -916,7 +799,7 @@ if __name__ == "__main__":
         t_rxd_net = threading.Thread(target=rxd_network, args=(cfg['net_port'],cfg['net_addr']))
         t_rxd_net.start()
     if cfg['tracker']['type'] != 'NONE':
-        t_tracker = threading.Thread(target=mqtt_tracker, args=(cfg['tracker'],cfg['boat']))
+        t_tracker = threading.Thread(target=appdata.track.mqtt_tracker, args=(cfg['tracker'],cfg['boat'],appdata,boatdata))
         t_tracker.start()
     if not cfg['simulation']:
         if cfg['bme280']:
@@ -925,9 +808,9 @@ if __name__ == "__main__":
     else:
         print("Simulation mode enabled")
 
-    app = Frontend(cfg, owndevice, boatdata, profile)
+    app = Frontend(cfg, appdata, owndevice, boatdata, profile)
     app.run()
-    shutdown = True
+    appdata.shutdown = True
     if cfg['can']:
         t_rxd_n2k.join()
     if cfg['nmea0183']:
@@ -936,8 +819,10 @@ if __name__ == "__main__":
         t_rxd_gps.join()
     if cfg['network']:
         t_rxd_net.join()
+    if cfg['tracker']['type'] != 'NONE':
+        t_tracker.join()
     if not cfg['simulation'] and cfg['bme280']:
         t_data.join()
-    print("Another fine product of the Sirius Cybernetics Corporation.")
 
     print(boatdata)
+    print("Another fine product of the Sirius Cybernetics Corporation.")

pages/anchor.py

@@ -36,7 +36,7 @@ from .page import Page
 
 class Anchor(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.sym_anchor = cairo.ImageSurface.create_from_png(os.path.join(cfg['imgpath'], "anchor.png"))
         self.buttonlabel[1] = 'MODE'

pages/apparentwind.py

@@ -5,7 +5,7 @@ from .page import Page
 
 class ApparentWind(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.buttonlabel[1] = 'MODE'
         self.mode = 'L' # (W)ind (L)ens

pages/autobahn.py

@@ -11,7 +11,7 @@ from .page import Page
 
 class Autobahn(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.xte = self.bd.getRef("XTE")
         self.cog = self.bd.getRef("COG")

pages/barograph.py

@@ -40,7 +40,7 @@ from .page import Page
 
 class Barograph(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         # Meßwert alle 15 Minuten: 
         # 84 Stunden * 4 Werte je Stunde = 336 Meßwerte

pages/battery.py

@@ -12,7 +12,7 @@ class Battery(Page):
 
     avg = (1, 10, 60, 300);
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.avgindex = 0
         self.buttonlabel[1] = 'AVG'

pages/bme280.py

@@ -9,7 +9,7 @@ from .page import Page
 
 class BME280(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         #self.ref1 = self.bd.getRef(boatvalue1)
         #self.ref2 = self.bd.getRef(boatvalue2)

pages/clock.py

@@ -20,7 +20,7 @@ import astral
 
 class Clock(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.buttonlabel[1] = 'MODE'
         self.buttonlabel[2] = 'TZ'

pages/fluid.py

@@ -22,7 +22,7 @@ import nmea2000.lookup
 
 class Fluid(Page):
 
-    def __init__(self, pageno, cfg, boatdata, fluidtype):
+    def __init__(self, pageno, cfg, appdata, boatdata, fluidtype):
         super().__init__(pageno, cfg, boatdata)
         self.fluidtype = int(fluidtype)
         if self.fluidtype == 0:

pages/fourvalues.py

@@ -20,7 +20,7 @@ from .page import Page
 
 class FourValues(Page):
 
-    def __init__(self, pageno, cfg, boatdata, boatvalue1, boatvalue2, boatvalue3, boatvalue4):
+    def __init__(self, pageno, cfg, appdata, boatdata, boatvalue1, boatvalue2, boatvalue3, boatvalue4):
         super().__init__(pageno, cfg, boatdata)
         self.value1 = boatvalue1
         self.value2 = boatvalue2

pages/fourvalues2.py

@@ -18,7 +18,7 @@ from .page import Page
 
 class FourValues2(Page):
 
-    def __init__(self, pageno, cfg, boatdata, boatvalue1, boatvalue2, boatvalue3, boatvalue4):
+    def __init__(self, pageno, cfg, appdata, boatdata, boatvalue1, boatvalue2, boatvalue3, boatvalue4):
         super().__init__(pageno, cfg, boatdata)
         self.value1 = boatvalue1
         self.value2 = boatvalue2

pages/keel.py

@@ -15,7 +15,7 @@ from .page import Page
 
 class Keel(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         # Wert für Kielrotation
         self.valref = self.bd.getRef("xdrRotK")

pages/onevalue.py

@@ -3,7 +3,7 @@ from .page import Page
 
 class OneValue(Page):
 
-    def __init__(self, pageno, cfg, boatdata, boatvalue):
+    def __init__(self, pageno, cfg, appdata, boatdata, boatvalue):
         super().__init__(pageno, cfg, boatdata)
         self.ref1 = self.bd.getRef(boatvalue)
 

pages/rudder.py

@@ -4,7 +4,7 @@ from .page import Page
 
 class Rudder(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.buttonlabel[1] = 'MODE'
         self.mode = 'P'

pages/sixvalues.py

@@ -18,7 +18,8 @@ from .page import Page
 
 class SixValues(Page):
 
-    def __init__(self, pageno, cfg, boatdata, boatvalue1, boatvalue2, boatvalue3, boatvalue4):
+    def __init__(self, pageno, cfg, appdata, boatdata, boatvalue1, boatvalue2,
+                 boatvalue3, boatvalue4, boatvalue5, boatvalue6):
         super().__init__(pageno, cfg, boatdata)
         self.value1 = boatvalue1
         self.value2 = boatvalue2

pages/skyview.py

@@ -14,7 +14,7 @@ from .page import Page
 
 class SkyView(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
 
     def pol2cart(azimut, elevation):

pages/threevalues.py

@@ -3,7 +3,7 @@ from .page import Page
 
 class ThreeValues(Page):
 
-    def __init__(self, pageno, cfg, boatdata, boatvalue1, boatvalue2, boatvalue3):
+    def __init__(self, pageno, cfg, appdata, boatdata, boatvalue1, boatvalue2, boatvalue3):
         super().__init__(pageno, cfg, boatdata)
         self.ref1 = self.bd.getRef(boatvalue1)
         self.ref2 = self.bd.getRef(boatvalue2)

pages/tracker.py

@@ -11,14 +11,18 @@ from .page import Page
 
 class Tracker(Page):
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
+        self._appdata = appdata
         self.buttonlabel[1] = 'MODE'
+        print(cfg)
 
     def handle_key(self, buttonid):
-        global tracker_active;
         if buttonid == 1:
-            tracker_active = not tracker_active
+            if self._appdata.track.is_active():
+                self._appdata.track.set_active(False)
+            else:
+                self._appdata.track.set_active(True)
 
     def draw(self, ctx):
         # Name
@@ -30,7 +34,7 @@ class Tracker(Page):
         ctx.set_font_size(16)
         ctx.move_to(20, 140)
         ctx.show_text("active: ")
-        if tracker_active:
+        if self._appdata.track.is_active():
             ctx.show_text("yes")
         else:
             ctx.show_text("no")

pages/twovalues.py

@@ -16,7 +16,7 @@ from .page import Page
 
 class TwoValues(Page):
 
-    def __init__(self, pageno, cfg, boatdata, boatvalue1, boatvalue2):
+    def __init__(self, pageno, cfg, appdata, boatdata, boatvalue1, boatvalue2):
         super().__init__(pageno, cfg, boatdata)
         self.ref1 = self.bd.getRef(boatvalue1)
         self.ref2 = self.bd.getRef(boatvalue2)

pages/voltage.py

@@ -17,7 +17,7 @@ class Voltage(Page):
 
     avg = (1, 10, 60, 300);
 
-    def __init__(self, pageno, cfg, boatdata):
+    def __init__(self, pageno, cfg, appdata, boatdata):
         super().__init__(pageno, cfg, boatdata)
         self.trend = True
         self.mode = 'A'

tracker.py

@@ -13,12 +13,170 @@ Wiederherstellung der Verbindung übertragen.
 
 """
 
+import os
+import time
+import paho.mqtt.client as mqtt
+import json
+
 class Tracker():
 
-    def __init__(self, trackertype):
+    def __init__(self, trackertype='NONE'):
         validtypes = ('HERO', 'SDCARD', 'SERVER', 'NONE')
         trackertype = trackertype.upper() 
         if trackertype not in validtypes:
             raise TypeError(f"Invalid tracker type: '{valtype}'. Only supported: {validtypes}")
         self.ttype = trackertype
+        self.activated = False
+        self.races = set()   # Liste der Regatten, eindeutige Namen
+        self.courses = set() # Liste der Bahnen, eindeutige Namen
 
+        self.lat = None    # last latitude
+        self.lon = None    # last longitude
+        self.tspos = None  # timestamp (hh:ss:mm) as datetime.time
+        self.sog = None
+
+
+    def is_active(self):
+       return self.activated
+
+    def set_active(self, newval):
+       self.activated = newval
+
+    def get_position(self):
+        # Positionsabfrage für die Payload
+        # LAT, LON, TSPOS, SOG
+        return (self.lat, self.lon, self.tspos, self.sog)
+
+    def hero_add_race(self, raceid):
+        self.races.add(raceid)
+
+    def hero_set_races(self, newraces):
+        self.races = set(newraces)
+
+    def mqtt_on_connect(self, client, userdata, flags, rc):
+        print(f"MQTT connected with result code {rc}")
+        #userdata['connect_rc'] = rc
+        if rc != 0:
+            # Result codes:
+            # 1: Connection Refused, unacceptable protocol version
+            # 2: Connection Refused, identifier rejected
+            # 3: Connection Refused, Server unavailable
+            # 4: Connection Refused, bad user name or password
+            # 5: Connection Refused, not authorized
+            #userdata['connect_ok'] = True
+            pass
+        else:
+            client.subscribe("regattahero/orgstatus/thomas")
+            client.subscribe("regattahero/racestatus/thomas/#")
+            #userdata['connect_ok'] = False
+
+    def mqtt_on_message(self, client, userdata, msg):
+        """
+        TODO raceid über userdata? dann topic prüfen?
+        """
+        if msg.topic == "regattahero/orgstatus/thomas":
+            # kommt alle 10s
+            orgstatus = json.loads(msg.payload)
+            if orgstatus['allLogout']:
+                print("All logout received!")
+                client.disconnect()
+                sys.exit(0) # TODO nur die MQTT-Task beenden
+            if orgstatus['message']:
+                # TODO Alarm-Funktion nutzen?
+                print("Nachricht der Wettfahrtkeitung:")
+                print(orgstatus['message'])
+            print(orgstatus['races'])
+            #for r in orgstatus['races']:
+            #    print(f"Race: {r}")
+        elif msg.topic.startswith("regattahero/racestatus/thomas"):
+            # kommt alle 1s
+            # dem Topic angehängt ist noch die raceid
+            payload = json.loads(msg.payload)
+            racestatus = payload['racestatus']
+            """
+            time: negativ: Zeit vor dem Start, positiv: Zeit nach dem Start
+                  in Sekunden
+
+            Signale der Wettfahrtleitung hier anzeigen
+               Regattaabbruch
+               Bahnverkürzung
+               Rückrufe
+
+            """
+        else:
+            print(f"UNKNOWN TOPIC: {msg.topic}")
+            print(msg.payload)
+
+    def mqtt_publish(self, client, topic, payload, bv_lat, bv_lon, bv_sog):
+        """
+        Payload vorbelegt als Template, so daß nur noch die veränderlichen
+        GPS-Daten eingefügt werden müssen: LAT LON SOG TIMESTAMP
+        """
+        lat = bv_lat.getValueRaw()
+        lon = bv_lon.getValueRaw()
+        sog = bv_sog.getValueRaw()
+        if lat and lon and sog:
+            payload['gps']['lat'] = round(lat, 5)
+            payload['gps']['lon'] = round(lon, 5)
+            payload['gps']['speed'] = sog
+            payload['gps']['timestamp'] = time.strftime("%Y-%m-%dT%H:%M:%S.000Z", time.gmtime())
+            
+            client.publish(topic, json.dumps(payload))
+        else:
+            print("No GPS data available. Nothing published!")
+
+    def mqtt_tracker(self, cfg, boat, appdata, boatdata):
+        print("MQTT tracker enabled")
+        client = mqtt.Client()
+        client.on_connect = self.mqtt_on_connect
+        client.on_message = self.mqtt_on_message
+        client.username_pw_set(username=cfg['mqtt_user'], password=cfg['mqtt_pass'])
+        try:
+            client.connect(cfg['host'], cfg['port'], 60)
+        except ConnectionRefusedError:
+            print("MQTT connection refused. Check username and password.")
+            return
+
+        tracefile = os.path.join(os.path.expanduser(cfg['logdir']), 'tracker.log')
+        trace_fh = open(tracefile, 'w+')
+        client.user_data_set({'trace': trace_fh})
+
+        topic = "regattahero/tracker/" + cfg['orgname']
+        payload = {
+            "passcode": cfg['passcode'],
+            "orgid":  cfg['orgname'],
+            "raceid": "Demo Regatta", # TODO aus Selektion einstellen 
+            "gps": {
+                "lat": 0.0,
+                "lon": 0.0,
+                "speed": 0.0,
+                "age": 1000,
+                "odo": 1000,
+                "bat": 1.0,
+                "timestamp": ""  # ISO8601 Format mit Millisekunden in UTC
+                },
+            "boat": {
+                "boatid": cfg['uuid'],
+                "sailno": boat['sailno'],
+                "team": boat['team'],
+                "boatclass": boat['class'],
+                "handicap": boat['handicap'],
+                "club": boat['club'],
+                "boatname": boat['name']
+                }
+            }
+
+        # Zugriff auf Boatdata: Referenzen für leichten schnellen Zugriff
+        bv_lat = boatdata.getRef("LAT")
+        bv_lon = boatdata.getRef("LON")
+        bv_sog = boatdata.getRef("SOG")
+
+        client.loop_start()
+        while not appdata.shutdown:
+            time.sleep(1)
+            if appdata.track.is_active():
+                self.mqtt_publish(client, topic, payload, bv_lat, bv_lon, bv_sog)
+        print("MQTT tracker shutdown")
+        client.loop_stop()
+        client.disconnect()
+        trace_fh.close()