diff --git a/maxcube/connection.py b/maxcube/connection.py
index 79c66c6..1883394 100644
--- a/maxcube/connection.py
+++ b/maxcube/connection.py
@@ -35,8 +35,11 @@ def read(self):
                 break
         self.response = buffer.decode('utf-8')
 
+    def send(self, command):
+        self.socket.send(command.encode('utf-8'))
+        self.read()
+
     def disconnect(self):
         if self.socket:
-            # self.send_message(QuitMessage())??
             self.socket.close()
         self.socket = None
diff --git a/maxcube/cube.py b/maxcube/cube.py
index 7e8310b..a5fdd78 100644
--- a/maxcube/cube.py
+++ b/maxcube/cube.py
@@ -1,5 +1,6 @@
 import base64
 import struct
+
 from maxcube.device import \
     MaxDevice, \
     MAX_CUBE, \
@@ -26,10 +27,7 @@ def __init__(self, connection):
         self.init()
 
     def init(self):
-        self.connection.connect()
-        response = self.connection.response
-        self.parse_response(response)
-        self.connection.disconnect()
+        self.update()
         logger.info('Cube (rf=%s, firmware=%s)' % (self.rf_address, self.firmware_version))
         for device in self.devices:
             if self.is_thermostat(device):
@@ -40,6 +38,12 @@ def init(self):
             else:
                 logger.info('Device (rf=%s, name=%s' % (device.rf_address, device.name))
 
+    def update(self):
+        self.connection.connect()
+        response = self.connection.response
+        self.parse_response(response)
+        self.connection.disconnect()
+
     def device_by_rf(self, rf):
         for device in self.devices:
             if device.rf_address == rf:
@@ -95,6 +99,7 @@ def parse_m_message(self, message):
             device_rf_address = ''.join("%X" % x for x in data[pos + 1: pos + 1 + 3])
             device_name_length = data[pos + 14]
             device_name = data[pos + 15:pos + 15 + device_name_length].decode('utf-8')
+            room_id = data[pos + 15 + device_name_length]
 
             device = self.device_by_rf(device_rf_address)
 
@@ -108,6 +113,7 @@ def parse_m_message(self, message):
             if device:
                 device.type = device_type
                 device.rf_address = device_rf_address
+                device.room_id = room_id
                 device.name = device_name
 
             pos += 1 + 3 + 10 + device_name_length + 2
@@ -135,6 +141,26 @@ def parse_l_message(self, message):
                 device.target_temperature = (data[pos + 7] & 0x7F) / 2
             pos += length
 
+    def set_target_temperature(self, thermostat, temperature):
+        rf_address = thermostat.rf_address
+        if len(rf_address) < 6:
+            rf_address = '0' + rf_address
+        room = str(thermostat.room_id)
+        if thermostat.room_id < 10:
+            room = '0' + room
+        target_temperature = int(temperature * 2)
+        target_temperature |= (1 << 6)
+        target_temperature &= ~ (1 << 7)
+
+        byte_cmd = '000440000000' + rf_address + room + hex(target_temperature)[2:]
+        command = 's:' + base64.b64encode(bytearray.fromhex(byte_cmd)).decode('utf-8') + '\r\n'
+
+        self.connection.connect()
+        self.connection.send(command)
+        self.connection.disconnect()
+        thermostat.target_temperature = int(temperature * 2)/2
+
+
     @classmethod
     def resolve_device_mode(cls, bits):
         if not bool(bits & 0x02) and not bool(bits & 0x01):
diff --git a/maxcube/device.py b/maxcube/device.py
index 6f4f3ef..e00c9de 100644
--- a/maxcube/device.py
+++ b/maxcube/device.py
@@ -15,4 +15,5 @@ class MaxDevice:
     def __init__(self):
         self.type = None
         self.rf_address = None
+        self.room_id = None
         self.name = None
diff --git a/tests/test_cube.py b/tests/test_cube.py
index 2e03482..0f5528b 100644
--- a/tests/test_cube.py
+++ b/tests/test_cube.py
@@ -8,6 +8,7 @@
     MAX_THERMOSTAT_PLUS, \
     MAX_DEVICE_MODE_AUTOMATIC, \
     MAX_DEVICE_MODE_MANUAL
+from maxcube.thermostat import MaxThermostat
 
 INIT_RESPONSE = \
     'H:KEQ0566338,0b6475,0113,00000000,74b7b6f7,00,32,0f0c19,1527,03,0000\n\r' \
@@ -34,11 +35,15 @@
 class MaxCubeConnectionMock(MaxCubeConnection):
     def __init__(self):
         super().__init__(None, None)
+        self.command = None
 
     def connect(self):
         self.response = INIT_RESPONSE
         return
 
+    def send(self, command):
+        self.command = command
+
     def disconnect(self):
         return
 
@@ -115,6 +120,12 @@ def test_is_thermostat(self):
         device.type = MAX_THERMOSTAT_PLUS
         self.assertEqual(True, self.cube.is_thermostat(device))
 
+    def test_set_target_temperature(self):
+        self.cube.set_target_temperature(self.cube.devices[0], 24.5)
+        self.assertEqual('s:AARAAAAABrxTAXE=\r\n', self.cube.connection.command)
+        self.assertEqual(24.5, self.cube.devices[0].target_temperature)
+        self.cube.set_target_temperature(self.cube.devices[0], 24.6)
+        self.assertEqual(24.5, self.cube.devices[0].target_temperature)