diff --git a/README.md b/README.md
index 514cf444..0420bb09 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,12 @@ A 3d-printable housing can be found here: https://www.thingiverse.com/thing:4571
 
 
 
-##### Rolling - (2020-09-13)
+##### Rolling - (2020-09-14)
+
+* Implementation of hostname in wlan.ini (`hostname = "HOSTNAME")` - Parameter is optional
+* Bug correction DecimalShift
+
+2020-09-13
 
 * Bug fixing DecimalShift (digits after comma)
 
diff --git a/code/lib/connect_wlan/connect_wlan.cpp b/code/lib/connect_wlan/connect_wlan.cpp
index da65a3fb..e39c75fc 100644
--- a/code/lib/connect_wlan/connect_wlan.cpp
+++ b/code/lib/connect_wlan/connect_wlan.cpp
@@ -100,7 +100,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
     return ESP_OK;
 }
 
-void initialise_wifi(std::string _ssid, std::string _passphrase)
+void initialise_wifi(std::string _ssid, std::string _passphrase, std::string _hostname)
 {
     ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL) );
     wifi_event_group = xEventGroupCreate();  
@@ -123,10 +123,11 @@ void initialise_wifi(std::string _ssid, std::string _passphrase)
 }
 
 
-void LoadWlanFromFile(std::string fn, std::string &_ssid, std::string &_passphrase)
+void LoadWlanFromFile(std::string fn, std::string &_ssid, std::string &_passphrase, std::string &_hostname)
 {
     string line = "";
     std::vector<string> zerlegt;
+    _hostname = "iciruit";
 
     FILE* pFile;
     fn = FormatFileName(fn);
@@ -145,13 +146,22 @@ void LoadWlanFromFile(std::string fn, std::string &_ssid, std::string &_passphra
 //        printf("%s", line.c_str());
         zerlegt = ZerlegeZeile(line, "=");
         zerlegt[0] = trim(zerlegt[0], " ");
-        zerlegt[1] = trim(zerlegt[1], " ");        
+        zerlegt[1] = trim(zerlegt[1], " "); 
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "HOSTNAME")){
+            _hostname = zerlegt[1];
+            if ((_hostname[0] == '"') && (_hostname[_hostname.length()-1] == '"')){
+                _hostname = _hostname.substr(1, _hostname.length()-2);
+            }
+        }
+
         if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "SSID")){
             _ssid = zerlegt[1];
             if ((_ssid[0] == '"') && (_ssid[_ssid.length()-1] == '"')){
                 _ssid = _ssid.substr(1, _ssid.length()-2);
             }
         }
+
         if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "PASSWORD")){
             _passphrase = zerlegt[1];
             if ((_passphrase[0] == '"') && (_passphrase[_passphrase.length()-1] == '"')){
diff --git a/code/lib/connect_wlan/connect_wlan.h b/code/lib/connect_wlan/connect_wlan.h
index bacd91ac..faa5c57d 100644
--- a/code/lib/connect_wlan/connect_wlan.h
+++ b/code/lib/connect_wlan/connect_wlan.h
@@ -6,8 +6,8 @@
 
 const int CONNECTED_BIT = BIT0;
 
-void initialise_wifi(std::string _ssid, std::string _passphrase);
+void initialise_wifi(std::string _ssid, std::string _passphrase, std::string _hostname);
 
-void LoadWlanFromFile(std::string fn, std::string &_ssid, std::string &_passphrase);
+void LoadWlanFromFile(std::string fn, std::string &_ssid, std::string &_passphrase, std::string &_hostname);
 
 #endif
\ No newline at end of file
diff --git a/code/lib/jomjol_flowcontroll/ClassFlowControll.cpp b/code/lib/jomjol_flowcontroll/ClassFlowControll.cpp
index f9c49f2f..cc1a92a4 100644
--- a/code/lib/jomjol_flowcontroll/ClassFlowControll.cpp
+++ b/code/lib/jomjol_flowcontroll/ClassFlowControll.cpp
@@ -230,7 +230,7 @@ std::string ClassFlowControll::UpdatePrevalue(std::string _newvalue)
     if (flowpostprocessing)
     {
         flowpostprocessing->SavePreValue(zw);
-        return _newvalue;    
+        return to_string(zw);    
     }
 
     return std::string();
diff --git a/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.cpp b/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.cpp
index 5da8e94c..178b28b7 100644
--- a/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.cpp
+++ b/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.cpp
@@ -19,8 +19,8 @@ string ClassFlowPostProcessing::GetPreValue()
     {
         if (((*ListFlowControll)[i])->name().compare("ClassFlowAnalog") == 0)
         {
-            int AnzahlNachkomma = ((ClassFlowAnalog*)(*ListFlowControll)[i])->AnzahlROIs();
-            result =  RundeOutput(PreValue, AnzahlNachkomma - DecimalShift);
+            int AnzahlAnalog = ((ClassFlowAnalog*)(*ListFlowControll)[i])->AnzahlROIs();
+            result =  RundeOutput(PreValue, AnzahlAnalog - DecimalShift);
         }
     }
 
@@ -78,8 +78,8 @@ bool ClassFlowPostProcessing::LoadPreValue(void)
     {
         if (((*ListFlowControll)[i])->name().compare("ClassFlowAnalog") == 0)
         {
-            int AnzahlNachkomma = ((ClassFlowAnalog*)(*ListFlowControll)[i])->AnzahlROIs();
-            ReturnValue = RundeOutput(Value, AnzahlNachkomma - DecimalShift);
+            int AnzahlAnalog = ((ClassFlowAnalog*)(*ListFlowControll)[i])->AnzahlROIs();
+            ReturnValue = RundeOutput(Value, AnzahlAnalog - DecimalShift);
             ReturnValueNoError = ReturnValue;
         }
     }
@@ -262,7 +262,7 @@ bool ClassFlowPostProcessing::doFlow(string zwtime)
     string zwvalue;
     bool isdigit = false;
     bool isanalog = false;
-    int AnzahlNachkomma = 0;
+    int AnzahlAnalog = 0;
     string zw;
     string error = "";
     time_t imagetime = 0;
@@ -282,7 +282,7 @@ bool ClassFlowPostProcessing::doFlow(string zwtime)
         {
             isanalog = true;
             analog = (*ListFlowControll)[i]->getReadout();
-            AnzahlNachkomma = ((ClassFlowAnalog*)(*ListFlowControll)[i])->AnzahlROIs();
+            AnzahlAnalog = ((ClassFlowAnalog*)(*ListFlowControll)[i])->AnzahlROIs();
         }
     }
 
@@ -329,6 +329,7 @@ bool ClassFlowPostProcessing::doFlow(string zwtime)
         return true;
     }
 
+/*
     if (isdigit)
     {
         int lastanalog = -1;
@@ -342,15 +343,19 @@ bool ClassFlowPostProcessing::doFlow(string zwtime)
         zw = zw + ".";
     if (isanalog)
         zw = zw + analog;
+    zw = ShiftDecimal(zw, DecimalShift);
+*/    
+
+    zw = ErsetzteN(ReturnRawValue);
 
     Value = std::stof(zw);
-    zwvalue = RundeOutput(Value, AnzahlNachkomma - DecimalShift);
+    zwvalue = RundeOutput(Value, AnzahlAnalog - DecimalShift);
 
     if ((!AllowNegativeRates) && (Value < PreValue))
     {
         error = "Negative Rate - Returned old value - read value: " + zwvalue;
         Value = PreValue;
-        zwvalue = RundeOutput(Value, AnzahlNachkomma - DecimalShift);
+        zwvalue = RundeOutput(Value, AnzahlAnalog - DecimalShift);
     }
     else
     {
@@ -358,7 +363,7 @@ bool ClassFlowPostProcessing::doFlow(string zwtime)
         {
             error = "Rate too high - Returned old value - read value: " + zwvalue;
             Value = PreValue;
-            zwvalue = RundeOutput(Value, AnzahlNachkomma - DecimalShift);
+            zwvalue = RundeOutput(Value, AnzahlAnalog - DecimalShift);
         }
     }
 
@@ -394,18 +399,27 @@ string ClassFlowPostProcessing::RundeOutput(float _in, int _anzNachkomma){
 }
 
 
-string ClassFlowPostProcessing::ErsetzteN(string input, int lastvalueanalog = -1)
+string ClassFlowPostProcessing::ErsetzteN(string input)
 {
     int posN, posPunkt;
     int pot, ziffer;
     float zw;
 
     posN = findDelimiterPos(input, "N");
-    posPunkt = input.length();
+    posPunkt = findDelimiterPos(input, ".");
+    if (posPunkt == std::string::npos){
+        posPunkt = input.length();
+    }
 
     while (posN != std::string::npos)
     {
-        pot = posPunkt - posN - 1;
+        if (posN < posPunkt) {
+            pot = posPunkt - posN - 1;
+        }
+        else {
+            pot = posPunkt - posN;
+        }
+
         zw = PreValue / pow(10, pot);
         ziffer = ((int) zw) % 10;
         input[posN] = ziffer + 48;
@@ -413,13 +427,11 @@ string ClassFlowPostProcessing::ErsetzteN(string input, int lastvalueanalog = -1
         posN = findDelimiterPos(input, "N");
     }
 
-///////////////////////////// TestCode
-/*
-    input = "10";
-    posPunkt = input.length();
-    PreValue = 9.5;
-    lastvalueanalog = 7;
-*/
+    return input;
+}
+
+string ClassFlowPostProcessing::checkDigitConsistency(string input, int _decilamshift, int lastvalueanalog){
+/*    
     if (checkDigitIncreaseConsistency && lastvalueanalog > -1)
     {
         int zifferIST;
@@ -450,7 +462,7 @@ string ClassFlowPostProcessing::ErsetzteN(string input, int lastvalueanalog = -1
         
             
         }
-        
     }
+*/
     return input;
 }
diff --git a/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.h b/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.h
index 5e0bb79e..e27dae32 100644
--- a/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.h
+++ b/code/lib/jomjol_flowcontroll/ClassFlowPostProcessing.h
@@ -28,7 +28,8 @@ protected:
     bool LoadPreValue(void);
     string ShiftDecimal(string in, int _decShift);
 
-    string ErsetzteN(string, int lastvalueanalog);
+    string ErsetzteN(string);
+    string checkDigitConsistency(string, int _decilamshift, int lastvalueanalog = -1);
     string RundeOutput(float _in, int _anzNachkomma);
 
 public:
diff --git a/code/src/main.cpp b/code/src/main.cpp
index c7849f37..9b5d4eba 100644
--- a/code/src/main.cpp
+++ b/code/src/main.cpp
@@ -113,11 +113,13 @@ extern "C" void app_main()
     LogFile.WriteToFile("Startsequence 03");
     std::string ssid = "";
     std::string password = "";
-    LoadWlanFromFile("/sdcard/wlan.ini", ssid, password); 
+    std::string hostname = "";
+
+    LoadWlanFromFile("/sdcard/wlan.ini", ssid, password, hostname); 
     LogFile.WriteToFile("Startsequence 04");    
     printf("WLan: %s, %s\n", ssid.c_str(), password.c_str());
    
-    initialise_wifi(ssid, password);
+    initialise_wifi(ssid, password, hostname);
     LogFile.WriteToFile("Startsequence 05");  
 
     TickType_t xDelay;
diff --git a/firmware/firmware.bin b/firmware/firmware.bin
index a3adfbed..221603e8 100644
Binary files a/firmware/firmware.bin and b/firmware/firmware.bin differ
diff --git a/sd-card/wlan.ini b/sd-card/wlan.ini
index f979b345..fac2d609 100644
--- a/sd-card/wlan.ini
+++ b/sd-card/wlan.ini
@@ -1,2 +1,4 @@
 ssid = "SSID"
-password = "PASSWORD"
\ No newline at end of file
+password = "PASSWORD"
+hostname = "watermeter"
+;hostname is optional
\ No newline at end of file