diff --git a/brewpi.py b/brewpi.py
index 0fc9b07..9de1af0 100644
--- a/brewpi.py
+++ b/brewpi.py
@@ -9,6 +9,7 @@ from components.pid import kalman, temp_controller
 from ws.message import MsgIo, MessageDispatcher
 from utils.value import Value, ValueChanged
 
+TC_DT = 0.1
 
 class ATask:
 	def __init__(self, interval):
@@ -198,7 +199,7 @@ if __name__ == '__main__':
 
 		# Sensor
 		sensor = TempSensorSim()
-		taskmgr.add(TempSensorTask(sensor, 1.0, dispatcher.msgio_get("Sensor"), kalman))
+		taskmgr.add(TempSensorTask(sensor, TC_DT, dispatcher.msgio_get("Sensor"), kalman))
 
 		# Plant
 		pot_params = {
@@ -206,18 +207,18 @@ if __name__ == '__main__':
 			"theta"			: 20,
 			"C"				: 4190,
 			"M"				: 10,
-			"L"				: 0.1,
+			"L"				: 0.02,
 			"Td"			: 12,
 			"kn"			: 0.2
 		}
 		pot = Pot(pot_params, 20)
-		pot.set_on_changed("temp", ValueChanged(sensor.set_fake_temp, prec=1).set)
-		taskmgr.add(PotTask(pot, 1.0, dispatcher.msgio_get("Pot")))
+		pot.set_on_changed("temp", ValueChanged(sensor.set_fake_temp, prec=3).set)
+		taskmgr.add(PotTask(pot, TC_DT, dispatcher.msgio_get("Pot")))
 
 		# Heater
 		heater = Heater()
 		heater.set_on_changed("power_eff", ValueChanged(pot.setPower, prec=0).set)
-		heater_task = HeaterTask(heater, 1.0, dispatcher.msgio_get("Heater"))
+		heater_task = HeaterTask(heater, TC_DT, dispatcher.msgio_get("Heater"))
 		taskmgr.add(heater_task)
 
 		# Temperature Controller
@@ -242,9 +243,9 @@ if __name__ == '__main__':
 		}
 		tc = temp_controller.TempController(tc_params)
 		tc.set_on_changed("y_hold", heater_task.actor)
-		tc_task = TcTask(tc, 1.0, dispatcher.msgio_get("Tc"))
+		tc_task = TcTask(tc, TC_DT, dispatcher.msgio_get("Tc"))
 		taskmgr.add(tc_task)
-		sensor.set_on_changed("temp", ValueChanged(tc.set_theta_ist, prec=1).set)
+		sensor.set_on_changed("temp", ValueChanged(tc.set_theta_ist, prec=2).set)
 
 		# Message dispatcher
 		h_dispatcher = taskmgr.start()
diff --git a/brewpi_gui.py b/brewpi_gui.py
index 9d92f3d..ae94cf7 100644
--- a/brewpi_gui.py
+++ b/brewpi_gui.py
@@ -20,15 +20,19 @@ class Window(QtWidgets.QMainWindow, Ui_MainWindow):
 		self.msg_pot = self.msg_dispatch.msgio_get('Pot')
 		self.msg_sensor = self.msg_dispatch.msgio_get('Sensor')
 		self.msg_heater = self.msg_dispatch.msgio_get('Heater')
+		self.msg_tempctrl = self.msg_dispatch.msgio_get('Tc')
 
 		self.msg_pot.set_recv_handler(self.on_pot_changed)
 		self.msg_sensor.set_recv_handler(self.on_sensor_changed)
 		self.msg_heater.set_recv_handler(self.on_heater_changed)
+		self.msg_tempctrl.set_recv_handler(self.on_tempctrl_changed)
 
 		self.setupUi(self)
 		self.actionStart.triggered.connect(self.connect)
 		self.actionStop.triggered.connect(self.disconnect)
-		self.Slider_pwr_soll.valueChanged.connect(self.on_slider_changed)
+		self.Slider_pwr_soll.valueChanged.connect(self.on_slider_pwr_soll_changed)
+		self.Slider_temp_soll.valueChanged.connect(self.on_slider_temp_soll_changed)
+
 		self.checkbox_heater_activate.stateChanged.connect(self.on_checkbox_changed)
 		self.send_data = Queue()
 		self.slider_initial_update = True
@@ -40,10 +44,14 @@ class Window(QtWidgets.QMainWindow, Ui_MainWindow):
 	def disconnect(self):
 		self.ws_client.disconnect()
 
-	def on_slider_changed(self, value):
-		print("on_slider_changed {}".format(value))
+	def on_slider_pwr_soll_changed(self, value):
+		print("on_slider_pwr_soll_changed {}".format(value))
 		self.msg_heater.send_from_thread({'Power': value})
 
+	def on_slider_temp_soll_changed(self, value):
+		print("on_slider_temp_soll_changed {}".format(value))
+		self.msg_tempctrl.send_from_thread({'Soll': value})
+
 	def on_checkbox_changed(self, value):
 		print("on_checkbox_changed {}".format(value))
 		self.msg_heater.send_from_thread({'Activate': int(value == 2)})
@@ -58,6 +66,11 @@ class Window(QtWidgets.QMainWindow, Ui_MainWindow):
 		if "Temp" in msg:
 			self.lcdNumber_3.display(str(msg['Temp']))
 
+	async def on_tempctrl_changed(self, msg):
+		print("on_tempctrl_changed {}".format(msg))
+#		if "Tc" in msg:
+#			self.lcdNumber_3.display(str(msg['Temp']))
+
 	async def on_heater_changed(self, msg):
 		print("on_heater_changed {}".format(msg))
 		for key in msg: