diff --git a/Control/brewpi/tempLogger.py b/Control/brewpi/tempLogger.py
index 50c8023..df3c38a 100644
--- a/Control/brewpi/tempLogger.py
+++ b/Control/brewpi/tempLogger.py
@@ -6,8 +6,8 @@ from matplotlib.pyplot import figure, clf, plot, xlabel, ylabel, xlim, ylim, tit
 import signal
 import threading
 
-from tempSensorSim import TempSensorSim
-#from max31865 import Max31865
+#from tempSensorSim import TempSensorSim
+from max31865 import Max31865
 
 class TempLogger():
 	def __init__(self, sensor, filename="temp.log"):
@@ -15,17 +15,20 @@ class TempLogger():
 		self.sensor = sensor
 		self.temps = np.empty(0)
 		self.times = np.empty(0)
-		self.count = 0
+		self.time = 0
 
 		self.abort = False
 		self.thread = None
 		self.sema = threading.Semaphore(0)
 
 	def start(self, dt, duration):
-		if self.thread == None:
-			self.thread = threading.Thread(target=self.run, args=(dt, duration,))
-			self.thread.start()
-
+		try:
+			if self.thread == None:
+				self.thread = threading.Thread(target=self.run, args=(dt, duration,))
+				self.thread.start()
+		except:
+			self.sema.release()
+			
 	def stop(self):
 		if self.thread:
 			self.abort = True
@@ -37,13 +40,13 @@ class TempLogger():
 		duration = args[1]
 
 		fp = open(self.filename, 'w')
-		for t in range(0, duration):
+		while self.time < duration:
 			temp = self.sensor.temperature()
 			print ("Current temperature is {:0.2f} °C".format(temp))
-			self.times = np.append(self.times, self.count)
+			self.times = np.append(self.times, self.time)
 			self.temps = np.append(self.temps, temp)
-			fp.write("{:04d} {:0.2f}\n".format(self.count, temp))
-			self.count += 1
+			fp.write("{:0.2f} {:0.2f}\n".format(self.time, temp))
+			self.time += dt
 			time.sleep(dt)
 			if self.abort:
 				break
@@ -81,10 +84,10 @@ if __name__ == '__main__':
 	signal.signal(signal.SIGINT, handler)
 	signal.signal(signal.SIGHUP, handler)
 
-#	sensor = Max31865()
-	sensor = TempSensorSim("FakeTemp")
+	sensor = Max31865()
+#	sensor = TempSensorSim("FakeTemp")
 	logger = TempLogger(sensor)
-	logger.start(1.0, 10)
+	logger.start(1.0, 30*60)
 	logger.wait()
 	tempPlot(logger.result())