diff --git a/Logger.py b/Logger.py
index 7ad3067..dd5cd2a 100644
--- a/Logger.py
+++ b/Logger.py
@@ -23,7 +23,7 @@ class Logger(object):
 		if(old==self.temp_prev_default):
 			return True
 		if((old-new)>self.temp_max_diff or (new-old)>self.temp_max_diff):
-			self.log.write('error checking temp '+sensor+';prev('+str(old)+');cur('+str(new)+'); ... @'+time.ctime()+"\n")
+			self.log.write('error checking '+self.names[sensor]+';prev('+str(old)+');cur('+str(new)+'); ... @'+time.ctime()+"\n")
 			self.log.flush()
 			return False
 		else:
@@ -38,55 +38,33 @@ class Logger(object):
 		valuelog.write(str(value) + ';' + str(int(time.time())) +"\n")
 		valuelog.close()
 
-	#########################################
-	# generic checking of temperature		#
-	#########################################
-	def check_and_write_temperature(self,value,sensor):
-		if(sensor>=self.temp_sensors):
-			return
-		if(self.temp_rise(self.prev_temps[sensor],value,str(sensor+1))):
-			self.write_value(value,sensor)
-			self.prev_temps[sensor]=value
-
 	##########################################
 	# callbacks for temp1+2					 #
 	##########################################
-	def cb_temperature0(self,value):
-		sensor=0
-		self.check_and_write_temperature(value,sensor)
-		print(self.names[sensor] +': ' + str(value/100.0) + ' °C,' + str(time.ctime()))
-	#
-	def cb_temperature1(self,value):
-		sensor=1
-		self.check_and_write_temperature(value,sensor)
+	def cb_temperature(self,value,sensor):
+		if(self.temp_rise(self.prev_temps[sensor],value,sensor)):
+			self.write_value(value,sensor)
+			self.prev_temps[sensor]=value
 		print(self.names[sensor] +': ' + str(value/100.0) + ' °C,' + str(time.ctime()))
 	
 	###########################################
 	# callback for humidity1				  #
 	###########################################
-	def cb_humidity2(self,rh):
-		sensor=2
+	def cb_humidity(self,rh,sensor):
 		self.write_value(rh,sensor)
 		print(self.names[sensor] +': '+ str(rh/10.0) + ' %RH,' + str(time.ctime()))
 	
 	###########################################
 	# callback for ambi-light1+2		  	  #
 	###########################################
-	def cb_illuminance3(self,illuminance):
-		sensor=3
-		self.write_value(illuminance,sensor)
-		print(self.names[sensor] +': '+ str(illuminance/10.0) + ' Lux,' + str(time.ctime()))
-	#
-	def cb_illuminance4(self,illuminance):
-		sensor=4
+	def cb_illuminance(self,illuminance,sensor):
 		self.write_value(illuminance,sensor)
 		print(self.names[sensor] +': '+ str(illuminance/10.0) + ' Lux,' + str(time.ctime()))
 	
 	###########################################
 	# callback for barometer1		  		  #
 	###########################################
-	def cb_pressure5(self,pressure):
-		sensor=5
+	def cb_pressure(self,pressure,sensor):
 		self.write_value(pressure,sensor)
 		print(self.names[sensor] +": "+str(pressure/1000)+ "mbar"+str(time.ctime()))
 	
diff --git a/all.py b/all.py
index eee6473..6d65eb3 100644
--- a/all.py
+++ b/all.py
@@ -3,12 +3,12 @@
 
 #class SensorType(Enum):
 class SensorType:
+	none = 0
 	temp = 1
 	humi = 2
 	ambi = 3
 	baro = 4
 	rain = 5
-	none = -1
 
 try:
 	from tinkerforge.ip_connection import IPConnection
@@ -23,6 +23,7 @@ except ImportError:
 import os.path
 import os
 import time
+from functools import partial
 
 from Logger import Logger
 
@@ -57,6 +58,7 @@ records='records'
 
 lockname=locks+"/all.lock"
 log=open(logs+"/all.log",'a')
+noop_cb = lambda value,sensor:0
 
 if __name__ == "__main__":
 	if not os.path.exists(lockname):
@@ -65,6 +67,7 @@ if __name__ == "__main__":
 		lock.close()
 		# lock obtained
 		logger=Logger(names, (tempSensors, prev_temps_default, tempmaxdiff), log, records)
+		callbacks=[noop_cb, logger.cb_temperature, logger.cb_humidity, logger.cb_illuminance, logger.cb_pressure, noop_cb]
 		try:
 			ipcon = IPConnection()
 			# connect
@@ -73,34 +76,27 @@ if __name__ == "__main__":
 			log.flush()
 			connected=[]
 			for i,sensor in enumerate(SENSORS):
+				callback=partial(callbacks[sensor[2]], sensor=i)
 				if(sensor[2] == SensorType.temp):
 					obj = Temperature(sensor[1], ipcon)
 					obj.set_temperature_callback_period(cbtimetemp)
-					if(i == 0):
-						logger.cb_temperature0(obj.get_temperature())
-						obj.register_callback(obj.CALLBACK_TEMPERATURE, logger.cb_temperature0)
-					else:
-						logger.cb_temperature1(obj.get_temperature())
-						obj.register_callback(obj.CALLBACK_TEMPERATURE, logger.cb_temperature1)
+					callback(obj.get_temperature())
+					obj.register_callback(obj.CALLBACK_TEMPERATURE, callback)
 				elif (sensor[2] == SensorType.humi):
 					obj = Humidity(sensor[1], ipcon)
-					logger.cb_humidity2(obj.get_humidity())
+					callback(obj.get_humidity())
 					obj.set_humidity_callback_period(cbtimehumi)
-					obj.register_callback(obj.CALLBACK_HUMIDITY, logger.cb_humidity2)
+					obj.register_callback(obj.CALLBACK_HUMIDITY, callback)
 				elif(sensor[2] == SensorType.ambi):
 					obj = AmbientLight(sensor[1], ipcon)
 					obj.set_illuminance_callback_period(cbtimeambi)
-					if(i == 0):
-						logger.cb_illuminance3(obj.get_illuminance())
-						obj.register_callback(obj.CALLBACK_ILLUMINANCE, logger.cb_illuminance3)
-					else:
-						logger.cb_illuminance4(obj.get_illuminance())
-						obj.register_callback(obj.CALLBACK_ILLUMINANCE, logger.cb_illuminance4)
+					callback(obj.get_illuminance())
+					obj.register_callback(obj.CALLBACK_ILLUMINANCE, callback)
 				elif (sensor[2] == SensorType.baro):
 					obj = Barometer(sensor[1], ipcon)
-					logger.cb_pressure5(obj.get_air_pressure())
+					callback(obj.get_air_pressure())
 					obj.set_air_pressure_callback_period(cbtimebaro)
-					obj.register_callback(obj.CALLBACK_AIR_PRESSURE,logger.cb_pressure5)
+					obj.register_callback(obj.CALLBACK_AIR_PRESSURE,callback)
 				else:
 					continue
 				connected.append(obj)