diff --git a/libs/oven_control.cpp b/libs/oven_control.cpp
index 8602e14..ae42812 100644
--- a/libs/oven_control.cpp
+++ b/libs/oven_control.cpp
@@ -11,8 +11,8 @@ Profile _profile;
 OvenCtl::OvenCtl() {
 
   time = 0;
-  temperature = 25;
-  last_temperature = 25;
+  temperature = 0;
+  last_temperature = 0;
   actual_dt = 0;
   // timestamps of event beginnings/ends
   Ts_time_start = 0;
@@ -34,19 +34,31 @@ OvenCtl::OvenCtl() {
 
   // ui stuff
   led_on = false;
-  disable_checks = true;
+  disable_checks = false;
   lcd = &_lcd;
   keypad = &_keypad;
   profile = &_profile;
   lcd->begin(16, 2);
 }
 
+void OvenCtl::reset() {
+  digitalWrite(7, LOW);
+}
+
+
 void OvenCtl::send_state() {
-  Serial.write(time);
-  Serial.write(temperature);
-  Serial.write(last_temperature);
-  Serial.write(state);
-  Serial.write(error_condition);
+  Serial.write(time & 0xff);
+  Serial.write((time>>8) & 0xff);
+  Serial.write(temperature & 0xff);
+  Serial.write((temperature >> 8) & 0xff);
+  Serial.write(last_temperature & 0xff);
+  Serial.write((last_temperature >> 8) & 0xff);
+  Serial.write(state & 0xff);
+  Serial.write((state >> 8) & 0xff);
+  Serial.write(error_condition & 0xff);
+  Serial.write((error_condition >> 8) & 0xff);
+  Serial.write(is_oven_heating);
+  Serial.flush();
 }
 
 void OvenCtl::send_config() {
@@ -57,22 +69,52 @@ void OvenCtl::send_config() {
     Serial.write(tmp & 0xff);
     Serial.write((tmp >> 8 ) & 0xff);
   }
-//   Serial.print("\n");
+  Serial.flush();
+}
+
+void OvenCtl::dispatch_input_config(int cmd) {
+  if (cmd == 255)
+    send_config();
+  else if (cmd == 254)
+    recv_config();
+  else if (cmd == 250)
+    reset();
+  else if (cmd == 253)
+    ;
+}
+
+void OvenCtl::recv_config() {
+
 }
 
 void OvenCtl::handle_states() {
-  if (state > 0)
-    time++;
-  get_temp();
-  check_dt();
+  int cmd = -1;
+
+  if (state > 0)
+  {
+    time++;
+    get_temp();
+    check_dt();
+  }
+
+  if (error_condition != 0) {
+    set_error_state();
+  }
+
+  if (Serial.available() > 0) {
+    cmd = Serial.read();
+    if (cmd == 255)
+      send_config();
+    else if (cmd == 254)
+      send_state();
+    else if (cmd == 253)
+      recv_config();
+    else if (cmd == 252)
+      reset();
+    else if (cmd == 251)
+      set_start_state();
+  }
 
-  //   if (!error_condition) {
-  //     print_debug();
-  //   }
-  //   else {
-  //     set_error_state();
-  //   }
-  //
   switch (state) {
       case CONFIG_STATE:
         if (profile->handle_config_state(lcd, keypad))
@@ -113,55 +155,74 @@ void OvenCtl::handle_states() {
   control_oven();
   if (state > 0) {
     print_status();
-    send_state();
     delay(1000);
   }
 }
 
 
-void OvenCtl::print_profile_state() {
-
-}
-
 
 void OvenCtl::print_status() {
-  String tmp("T: ");
-  if (time < 10)
-    tmp += "00";
-  else if (time < 100)
-    tmp += "0";
-  tmp += time;
-  tmp += " Tmp: ";
-  if (temperature < 10)
-    tmp += "00";
-  else if (temperature < 100)
-    tmp += "0";
-  tmp += temperature;
-  lcd->setCursor(0, 0);
-  lcd->print(tmp);
+  if (error_condition == 0) {
+    String tmp("T: ");
+    if (time < 10)
+      tmp += "00";
+    else if (time < 100)
+      tmp += "0";
+    tmp += time;
+    tmp += " Tmp: ";
+    if (temperature < 10)
+      tmp += "00";
+    else if (temperature < 100)
+      tmp += "0";
+    tmp += temperature;
+    lcd->setCursor(0, 0);
+    lcd->print(tmp);
 
-  tmp = "Profile: ";
-  tmp += state;
-  tmp += "/";
-  tmp += END_STATE;
-  lcd->setCursor(0, 1);
-  lcd->print(tmp);
-  lcd->setCursor(13, 1);
-  if (is_oven_heating)
-    lcd->print("on ");
-  else
-    lcd->print("off");
+    tmp = "Profile: ";
+    tmp += state;
+    tmp += "/";
+    tmp += END_STATE;
+    lcd->setCursor(0, 1);
+    lcd->print(tmp);
+    lcd->setCursor(13, 1);
+    if (is_oven_heating)
+      lcd->print("on ");
+    else
+      lcd->print("off");
+  }
+  else {
+    lcd->clear();
+    lcd->print("Error:");
+    lcd->setCursor(0, 1);
+    if (error_condition & E_DT_MIN)
+      lcd->print("K/s too low");
+    if (error_condition & E_DT_MAX)
+      lcd->print("K/s too high");
+    if (error_condition & E_TIME_MAX)
+      lcd->print("reflow too long");
+    if (error_condition & E_TS_TOO_SHORT)
+      lcd->print("ts too short");
+    if (error_condition & E_TS_TOO_LONG)
+      lcd->print("ts too long");
+    if (error_condition & E_TL_TOO_SHORT)
+      lcd->print("tal too short");
+    if (error_condition & E_TL_TOO_LONG)
+      lcd->print("tal too long");
+    if (error_condition & E_TP_TOO_LONG)
+      lcd->print("peak too short");
+    if (error_condition & E_TP_TOO_SHORT)
+      lcd->print("peak too long");
+  }
 }
 
 
 void OvenCtl::control_oven() {
   if (temperature < set_min && !is_oven_heating) {
     is_oven_heating = true;
-    Serial.println("Oven turned on");
+//     Serial.println("Oven turned on");
   }
   else if (temperature > set_min && is_oven_heating) {
     is_oven_heating = false;
-    Serial.println("Oven turned off");
   }
 }
 
@@ -194,11 +255,9 @@ void OvenCtl::check_dt() {
 void OvenCtl::check_max_duration() {
   if (disable_checks)
     return;
-  Serial.println(time);
   if (time > profile->data[PI_TIME_MAX]) {
     error_condition |= E_TIME_MAX;
   }
-  Serial.println(time);
 }
 
 void OvenCtl::check_Ts_duration_min() {
@@ -252,7 +311,6 @@ void OvenCtl::check_Tp_duration_max() {
 }
 
 void OvenCtl::set_config_state() {
-  send_config();
   profile->print_config_state_0(lcd);
 }
 
@@ -270,51 +328,44 @@ void OvenCtl::set_start_state() {
 
 
 void OvenCtl::set_preheat_state() {
-  Serial.println("Changing state to PREHEAT_STATE");
+//   Serial.println("Changing state to PREHEAT_STATE");
   state++;
 }
 
 
 void OvenCtl::set_ramp_up_state() {
-  Serial.println("Changed state to RAMP_UP_STATE");
   state++;
 }
 
 
 void OvenCtl::set_tal_first_state() {
-  Serial.println("Changed state to TAL_FIRST_STATE");
   state++;
 }
 
 
 void OvenCtl::set_peak_state() {
-  Serial.println("Changed state to PEAK_STATE");
   state++;
 }
 
 
 void OvenCtl::set_tal_second_state() {
-  Serial.println("Changed state to TAL_SECOND_STATE");
-  set_temp(25, 25, -3, -6);
+  set_temp(0, 25, -3, -6);
   state++;
 }
 
 
 void OvenCtl::set_ramp_down_state() {
-  Serial.println("Changed state to RAMP_DOWN_STATE");
   state++;
 }
 
 
 void OvenCtl::set_end_state() {
-  Serial.println("Changed state to END_STATE");
   state++;
 }
 
 
 void OvenCtl::set_error_state() {
   if (state != ERROR_STATE) {
-    Serial.println("Changed state to ERROR_STATE");
     set_temp(0, 0, 0, 0);
     state = ERROR_STATE;
   }
@@ -328,8 +379,7 @@ void OvenCtl::handle_config_state() {
 
 void OvenCtl::handle_start_state() {
   check_max_duration();
-  Serial.println(time);
-   if (temperature > profile->data[PI_TS_MIN]) {
+  if (temperature > profile->data[PI_TS_MIN]) {
     Ts_time_start = time;
     set_preheat_state();
   }
@@ -391,13 +441,9 @@ void OvenCtl::handle_ramp_down_state() {
 
 
 void OvenCtl::handle_end_state() {
-//   while(true) {
-//     continue;
-//   }
 }
 
 
-
 void OvenCtl::handle_error_state() {
   if (led_on) {
     digitalWrite(13, LOW);
@@ -407,22 +453,4 @@ void OvenCtl::handle_error_state() {
     digitalWrite(13, HIGH);
     led_on = true;
   }
-//   if (error_condition & E_DT_MIN)
-//     Serial.println(PSTR("Error: delta °K/second too low"));
-//   if (error_condition & E_DT_MAX)
-//     Serial.println("Error: delta °K/second too big");
-//   if (error_condition & E_TIME_MAX)
-//     Serial.println("Error: reflow process does take too long");
-//   if (error_condition & E_TS_TOO_SHORT)
-//     Serial.println("Error: heatup duration was too short");
-//   if (error_condition & E_TS_TOO_LONG)
-//     Serial.println("Error: heatup duration was too long");
-//   if (error_condition & E_TL_TOO_SHORT)
-//     Serial.println("Error: temperature above liquidus duration was too short");
-//   if (error_condition & E_TL_TOO_LONG)
-//     Serial.println("Error: temperature above liquidus duration was too long");
-//   if (error_condition & E_TP_TOO_LONG)
-//     Serial.println("Error: peak temperature duration was too short");
-//   if (error_condition & E_TP_TOO_SHORT)
-//     Serial.println("Error: peak temperature duration was too long");
 }
diff --git a/libs/oven_control.h b/libs/oven_control.h
index 7a185b2..104f701 100644
--- a/libs/oven_control.h
+++ b/libs/oven_control.h
@@ -35,6 +35,12 @@ class Profile;
 
 class OvenCtl {
 public:
+
+  OvenCtl();
+  void handle_states();
+  void set_config_state();
+
+private:
   // system time, timestamps and temperatures from sensors
   int time; // profile seconds
   int temperature; // actual oven temp
@@ -68,10 +74,6 @@ public:
   DFR_Key * keypad;
   Profile * profile;
 
-  OvenCtl();
-  void handle_states();
-
-  void print_profile_state();
   void print_status();
   void control_oven();
   void set_temp(int, int, int, int);
@@ -79,7 +81,6 @@ public:
   void check_dt();
   void check_max_duration();
 
-  void set_config_state();
   void set_start_state();
   void set_preheat_state();
   void set_tal_first_state();
@@ -110,6 +111,11 @@ public:
 
   void send_state();
   void send_config();
+  void reset();
+
+  void recv_config();
+
+  void dispatch_input_config(int);
 };
 
 #endif
diff --git a/libs/profile.cpp b/libs/profile.cpp
index 1db9e35..aee0968 100644
--- a/libs/profile.cpp
+++ b/libs/profile.cpp
@@ -43,7 +43,7 @@ Profile::Profile() :
     180,
     60,
     150,
-    20,
+    1,
     40}),
   config_index(0),
   config_state(0),
diff --git a/serialmon.py b/serialmon.py
index c03de37..dd956fc 100755
--- a/serialmon.py
+++ b/serialmon.py
@@ -1,31 +1,81 @@
 #!/usr/bin/python
+# -*- coding: utf-8 -*-
 
-import serial, struct
+import serial, struct, time
 
-try:
-  ser = serial.Serial('/dev/ttyUSB0', 9600)
-  i = ser.read(30)
-  data = list(struct.unpack("hhhhhhhhhhhhhhh", i))
-  print "ts_min", data[0]
-  print "ts_max", data[1]
-  print "tl", data[2]
-  print "tp", data[3]
-  print "time_max", data[4]
-  print "ramp_up_min", data[5]
-  print "ramp_up_max", data[6]
-  print "ramp_down_min", data[7]
-  print "ramp_down_max", data[8]
+ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=2)
 
-  print "ts_duration_min", data[9]
-  print "ts_duration_max", data[10]
-  print "tl_duration_min", data[11]
-  print "tl_duration_max", data[12]
-  print "tp_duration_min", data[13]
-  print "tp_duration_max", data[14]
 
+buf = ""
+alles = []
+
+#def parse():
+  #buffer = list()
   #while 1:
-    #print ser.read(5)
-except Exception, e:
-    pass
+    #try:
+      #i = ser.read(1)
+      #if ord(i) == 255:
+    #except Exception, e:
+      #print e
+    #else:
+
+def recv_config():
+  ser.write(chr(255))
+  ser.flush()
+  read(30)
+  ser.flushInput()
+  data = struct.unpack("hhhhhhhhhhhhhhh", buf)
+  print
+  print "Profile:"
+  print "ts_min:", data[0]
+  print "ts_max:", data[1]
+  print "tl:", data[2]
+  print "tp:", data[3]
+  print "time_max:", data[4]
+  print "ramp_up_min:", data[5]
+  print "ramp_up_max:", data[6]
+  print "ramp_down_min:", data[7]
+  print "ramp_down_max:", data[8]
+
+  print "ts_duration_min:", data[9]
+  print "ts_duration_max:", data[10]
+  print "tl_duration_min:", data[11]
+  print "tl_duration_max:", data[12]
+  print "tp_duration_min:", data[13]
+  print "tp_duration_max:", data[14]
+  print
+
+
+def recv_state():
+  ser.write(chr(254))
+  ser.flush()
+  read(11)
+  data = struct.unpack("hhhhhb", buf)
+  print "time: %ds, temperature: %d°C, last temperature: %d°C, state: %d, error condition: %d, heating: %d" % data
+
+
+def send_config():
+  ser.write(chr(253))
+  ser.write(buf)
+  ser.flushInput()
+
+
+def read(l):
+  global buf
+  global alles
+  buf = ""
+  while len(buf) < l:
+    try:
+      buf += ser.read(l)
+      alles.append(buf)
+    except Exception, e:
+      print e
+  ser.flushInput()
+
+
+time.sleep(2)
+recv_config()
+while 1:
+  recv_state()
+  time.sleep(1)
 
-