diff --git a/ConnectionSetup.py b/ConnectionSetup.py
new file mode 100644
index 0000000..a697143
--- /dev/null
+++ b/ConnectionSetup.py
@@ -0,0 +1,31 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+try:
+	from tinkerforge.ip_connection import IPConnection
+except ImportError:
+	print("package 'tinkerforge' not installed, canceling")
+	raise
+from SensorSetup import SensorSetup
+
+class ConnectionSetup(object):
+		
+	def setupConnection(self, host):
+		ipcon = IPConnection()
+		ipcon.connect(host['name'], host['port'])
+		return (ipcon)
+	
+	def setupConnectionAndSensors(self, host, sensors, cbtimes, cb_generic):
+		hostname = host['name']
+		port = host['port']
+		ipcon = IPConnection()
+		ipcon.connect(hostname, port)
+		sensorSetup = SensorSetup(ipcon, sensors, cbtimes, cb_generic)
+		connectedSensors = sensorSetup.setupSensors()
+		return (ipcon, connectedSensors)
+	
+	def disconnectAny(self, connections):
+		for connection in connections:
+			if not connection.get_connection_state() is IPConnection.CONNECTION_STATE_DISCONNECTED:
+				connection.disconnect()
+
diff --git a/Setup.py b/SensorSetup.py
similarity index 99%
rename from Setup.py
rename to SensorSetup.py
index 57ea353..bfe2136 100644
--- a/Setup.py
+++ b/SensorSetup.py
@@ -13,7 +13,7 @@ from functools import partial
 import traceback
 from settings import SensorType
 
-class Setup(object):
+class SensorSetup(object):
 
 	def __init__(self, connection, sensors, cbtimes, cb_generic):
 		self.connection = connection
diff --git a/all.py b/all.py
index 3053233..86083d4 100644
--- a/all.py
+++ b/all.py
@@ -1,20 +1,12 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-  
 
-
-try:
-	from tinkerforge.ip_connection import IPConnection
-except ImportError:
-	print("package 'tinkerforge' not installed, canceling")
-	raise
-
 import os.path
 import os
 import time
 
 from Logger import Logger
-from Setup import Setup
-from settings import SensorType
+from ConnectionSetup import ConnectionSetup
 import settings
 
 def check_dirs_and_files():
@@ -41,31 +33,36 @@ def obtainLock(lockfile = settings.lockname):
 		lock.close()
 		return True
 	return False
+
 def freeLock(lockfile = settings.lockname):
 	if os.path.exists(lockfile):
 		os.remove(lockfile)
-def disconnect(connection):
-	if not connection.get_connection_state() is IPConnection.CONNECTION_STATE_DISCONNECTED:
-		connection.disconnect()
+
+def formatHost(host):
+	return "%s:%d"%(host['name'], host['port'])
 
 if __name__ == "__main__":
 	check_dirs_and_files()
 	log=open(settings.logname,'a')
 	try:
+		log.write('setting up "all" ... @'+time.ctime()+"\n")
 		while True:
 			if obtainLock():
 				logger=Logger(log, )
 				try:
-					ipcon = IPConnection()
-					# connect
-					ipcon.connect(settings.HOST, settings.PORT)
-					log.write('start logging "all" ... @'+time.ctime()+"\n")
+					connections = []
+					connectedSensors = []
+					for con in settings.SENSORS:
+						con = settings.SENSORS[con]
+						conSetup = ConnectionSetup()
+						connection, sensors = conSetup.setupConnectionAndSensors(con['host'], con['sensors'], settings.TIMES, logger.cb_generic)
+						connections.append(connection)
+						connectedSensors.append(sensors)
+						log.write("started logging at %s ... @ %s\n"% (formatHost(con['host']), time.ctime()))
 					log.flush()
-					setup = Setup(ipcon, settings.SENSORS, settings.TIMES, logger.cb_generic)
-					connected = setup.setupSensors()
 					raw_input('Press key to restart\n')
-					disconnect(ipcon)
 					log.write('stop logging... @'+time.ctime()+"\n")
+					conSetup.disconnectAny(connections)
 				except Exception as inst:
 					#connection failed, log and exit
 					logger.printException(inst)
@@ -77,8 +74,9 @@ if __name__ == "__main__":
 			print("wait for retry ("+str(settings.waitDelay)+")")
 			time.sleep(settings.waitDelay)
 	except KeyboardInterrupt:
-		print("Interrupted, cleaning up")
-		disconnect(ipcon)
+		print(" Interrupted, cleaning up")
+		conSetup.disconnectAny(connections)
 		log.write("keyboard-interrupt happened @"+time.ctime()+"\n")
+		log.close()
 		freeLock()
 
diff --git a/settings.py b/settings.py
index 2fdeb46..d4fa030 100644
--- a/settings.py
+++ b/settings.py
@@ -17,13 +17,21 @@ HOST = "192.168.2.60"
 PORT = 4223
 
 SENSORS={
-	"temp1": ["7B5", SensorType.temp],
-	"temp2": ["8js", SensorType.temp],
-	"humi1": ["7RY", SensorType.humi],
-	"ambi1": ["8Fw", SensorType.ambi],
-	"ambi2": ["8DJ", SensorType.ambi],
-	"baro1": ["bB7", SensorType.baro],
-	"temp3": ["8ms", SensorType.temp],
+	0: {
+		"host": {
+			"name": "192.168.2.60",
+			"port": 4223
+		},
+		"sensors": {
+			"temp1": ["7B5", SensorType.temp],
+			"temp2": ["8js", SensorType.temp],
+			"humi1": ["7RY", SensorType.humi],
+			"ambi1": ["8Fw", SensorType.ambi],
+			"ambi2": ["8DJ", SensorType.ambi],
+			"baro1": ["bB7", SensorType.baro],
+			"temp3": ["8ms", SensorType.temp],
+		}
+	}
 }
 
 TIMES={
@@ -63,5 +71,9 @@ SENSOR_UNITS=[
 # no manual change needed #
 ###########################
 
-tempSensors=len(list(filter(lambda a: True if SENSORS[a][1]==SensorType.temp else False, SENSORS)))
+tempSensors=0
+for i in SENSORS:
+	for j in SENSORS[i]['sensors']:
+		if SENSORS[i]['sensors'][j][1] == SensorType.temp:
+			tempSensors+=1