Zefek · Zefek · May 29, 2026 · May 26, 2026 · May 26, 2026 · May 26, 2026
diff --git a/.github/workflows/pull_request_build.yml b/.github/workflows/pull_request_build.yml
@@ -35,7 +35,7 @@ jobs:
       - name: Static analysis
         run: |
           sudo apt-get install -y cppcheck
-          cppcheck --enable=all --language=c++ --suppress=missingIncludeSystem --suppress=unusedFunction --suppress=unusedStructMember --suppress=noExplicitConstructor --suppress=noCopyConstructor --suppress=noOperatorEq --suppress=cstyleCast --suppress=constParameterCallback --suppress=constParameterPointer --suppress=constVariablePointer --suppress=unsignedLessThanZero --suppress=unsignedPositive --suppress=checkersReport --error-exitcode=1 *.ino *.cpp *.h
+          cppcheck --enable=all --language=c++ --suppress=missingIncludeSystem --suppress=unusedFunction --suppress=unusedStructMember --suppress=noExplicitConstructor --suppress=noCopyConstructor --suppress=noOperatorEq --suppress=cstyleCast --suppress=constParameterPointer --suppress=constVariablePointer --suppress=unsignedLessThanZero --suppress=unsignedPositive --suppress=checkersReport --error-exitcode=1 *.ino *.cpp *.h
 
       - name: Compile Arduino project
         run: |

diff --git a/HeatingTemperatureRegulator.ino b/HeatingTemperatureRegulator.ino
@@ -18,10 +18,6 @@
 #define HEATINGPUMPRELAYPIN         10
 #define HEATERWASTEGASTHERMOSTATPIN 11
 #define ONEWIREBUSPIN                7
-#define SERVOMAXRANGE               70000 //Časový interval pohybu serva mezi krajními hodnotami
-#define SERVO1PC                    700L //Jedno procento z intervalu serva
-#define MINSERVOINTERVAL            700    //Minimální interval pro aktivaci serva
-#define AVGOUTTEMPVALUES            180     //Počet hodnot pro výpočet průměrné venkovní teploty (počet minut)
 #define FASTAVGALPHA                0.3
 #define SLOWAVGALPHA                0.035
 
@@ -41,19 +37,6 @@ void convertToHalfByte(int value, uint8_t* result, uint8_t length)
   }
 }
 
-void convert_to_utf8(const uint8_t* input, uint8_t length, char* output) {
-    int j = 0;
-    for(int i = 0; i < length; i++)
-    {
-      uint8_t first = input[i] >> 4;
-      uint8_t second = input[i] & 0x0F;
-      output[j++] = first<10? (char)('0'+first):(char)('7'+first);
-      output[j++] = second<10? (char)('0'+second):(char)('7'+second);   
-    }
-
-    output[j] = '\0'; // Null-terminate the UTF-8 string
-}
-
 /*
 0 - currentTemperature
 1 - inputTemperature
@@ -77,6 +60,7 @@ void convert_to_utf8(const uint8_t* input, uint8_t length, char* output) {
 19 - averageOutsideTemperature B2
 20 - averageOutsideTemperature B3 (MSB)
 21 - heatermode
+22 - flame
 */
 #pragma pack(push, 1)
 struct HeaterState {
@@ -125,7 +109,6 @@ FVEData currentFveData;
 DiagData currentDiagData;
 BelData belData;
 
-uint8_t temperatureDataToCompare[5];
 Display lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
 Ds1302 rtc(4, 5, 6);
 TX07KTXC outsideTemperatureSensor(2, 3, OutsideTemperatureChanged);
@@ -155,7 +138,6 @@ bool relayOn = false;
 int8_t direction = 0;
 double outsideTemperature = 14;
 double outsideTemperatureAverage = 0;
-int sensor = 1;
 bool thermostat = false;
 uint8_t sensrId = 0;
 int lastCurrentTemp = 0;
@@ -169,6 +151,7 @@ unsigned long mqttConnectionTimeout = 0;
 unsigned long mqttLastConnectionTry = 0;
 bool shouldHeatingBeOnByTemperature = false;
 bool outsideTemperatureWasSet = false;
+unsigned long lastOutsideTemperatureMillis = 0;
 bool fveOnlineSent = false;
 bool fveOfflineSent = false;
 unsigned long fastReadMillis = 0;
@@ -226,7 +209,6 @@ void setup() {
   ComputeWasteGasTemperature();
   ComputeSlowWasteGasTemperature();
   lcd.SetWasteGasTemperature(averageWasteGasTemperature);
-  ComputeOutsideTemperatureAverage();
   lcd.EndInitialize();
   convertToHalfByte(999, currentState.outsideAvgTemp, 4);
   resetServo = true;
@@ -432,17 +414,33 @@ void OutsideTemperatureChanged(double temperature, uint8_t channel, uint8_t sens
   if(channel == 1 && sensrId == sensorId)
   {
     outsideTemperature = temperature;
-    if (memcmp(rawData, temperatureDataToCompare, 5) != 0)
+    client.Publish(TOPIC_OUTSIDETEMPERATURE, rawData, 5);
+
+    //Časově vážený průměr pro ekviterm. Váha čerstvého čtení roste s dobou od
+    //posledního příjmu => krátké nepravidelné mezery i výpadek se zohlední samy.
+    double oldAverage = outsideTemperatureAverage;
+    if(!outsideTemperatureWasSet)
     {
-      convert_to_utf8(rawData, 5, utf8Buffer);
-      client.Publish(TOPIC_OUTSIDETEMPERATURE, (const char*) utf8Buffer, true);
-      memcpy(temperatureDataToCompare, rawData, 5);
+      outsideTemperatureAverage = temperature; //první čtení = nasazení
     }
-    if(!outsideTemperatureWasSet)
+    else
+    {
+      double elapsedMin = (currentMillis - lastOutsideTemperatureMillis) / 60000.0;
+      if(elapsedMin > 0)
+      {
+        double alpha = 1.0 - exp(-elapsedMin / OUTSIDEAVGTAU);
+        outsideTemperatureAverage = constrain(alpha * temperature + (1 - alpha) * outsideTemperatureAverage, -50, 50);
+      }
+    }
+    if(oldAverage != outsideTemperatureAverage)
     {
-      outsideTemperatureAverage = temperature;
+      int T = (int)(outsideTemperatureAverage * 10);
+      convertToHalfByte(T, currentState.outsideAvgTemp, 4);
     }
+
+    lastOutsideTemperatureMillis = currentMillis;
     outsideTemperatureWasSet = true;
+
     lcd.SetOutTemperature(temperature);
   }
 }
@@ -477,22 +475,6 @@ void computeRequiredTemperature()
   }
 }
 
-void ComputeOutsideTemperatureAverage()
-{
-  if(!outsideTemperatureWasSet)
-  {
-    return;
-  }
-  double oldAverage = outsideTemperatureAverage;
-  double alpha = 1.0 / 180.0;
-  outsideTemperatureAverage = constrain(alpha * outsideTemperature + (1 - alpha) * outsideTemperatureAverage, -50, 50);
-  if(oldAverage != outsideTemperatureAverage)
-  {
-    int T = (int)(outsideTemperatureAverage * 10);
-    convertToHalfByte(T, currentState.outsideAvgTemp, 4);
-  }
-}
-
 void ComputeSlowWasteGasTemperature()
 {
   int previousWasteGasTemperature = (int)slowAverageWasteGasTemperature;
@@ -729,7 +711,6 @@ void sendToHomeAssistant()
   {
     if(sendIndex == 0)
     {
-      ComputeOutsideTemperatureAverage();
       computeRequiredTemperature();
       sendHeaterToHomeAssistant();
       sendIndex = 1;
@@ -880,6 +861,10 @@ void loop() {
     resetServo = false;
   }
   outsideTemperatureSensor.CheckTemperature();
+  if(outsideTemperatureWasSet && currentMillis - lastOutsideTemperatureMillis > OUTSIDETEMPERATURETIMEOUT)
+  {
+    lcd.SetOutTemperatureNotSet();
+  }
   belWattmeter.Loop();
   if(currentMillis - fastReadMillis > 50)
   {

diff --git a/config_default.h b/config_default.h
@@ -19,6 +19,12 @@
 #define OVERHEATINGTEMPERATURE 0
 #define MININPUTTEMPERATURE 0
 #define MAXIMALSERVOSTEP 3
+#define SERVOMAXRANGE               70000 //Časový interval pohybu serva mezi krajními hodnotami
+#define SERVO1PC                    700L //Jedno procento z intervalu serva
+#define MINSERVOINTERVAL            700    //Minimální interval pro aktivaci serva
+#define OUTSIDEAVGTAU               180.0   //Časová konstanta průměru venkovní teploty [min] (≈ původní 1/180)
+#define OUTSIDETEMPERATURETIMEOUT   600000UL //Po této době bez dat ze snímače [ms] => na displeji --.-
+
 
 #define HeaterOn(ht, wgt)  false
 #define HeaterOff(ht, wgt)  false

diff --git a/display.cpp b/display.cpp
@@ -33,12 +33,12 @@
       }
     }
 
-    void Display::printOutTemperature(bool blink)
+    void Display::printOutTemperature()
     {
-      if(blink)
+      lcd->setCursor(10, 1);
+      if(!outsideTemperatureWasSet)
       {
-        lcd->setCursor(10, 1);
-        lcd->print("      ");
+        lcd->print(" --.-");
       }
       else
       {
@@ -58,8 +58,8 @@
           lcd->print(" ");
         }
         lcd->print(outTemperature, 1);
-        lcd->write((byte)1);
       }
+      lcd->write((byte)1);
     }
 
     Display::Display(uint8_t lcd_Addr,uint8_t lcd_cols,uint8_t lcd_rows)
@@ -102,15 +102,25 @@
 
     void Display::SetOutTemperature(double outTemperature)
     {
+      outsideTemperatureWasSet = true;
       if(this->outTemperature != outTemperature || forcePrint)
       {
         this->outTemperature = outTemperature;
         if(!initializing)
         {
-          printOutTemperature(false);
+          printOutTemperature();
         }
       }
-      outsideTemperatureWasSet = true;
+    }
+
+    void Display::SetOutTemperatureNotSet()
+    {
+      if(!outsideTemperatureWasSet)
+      {
+        return;
+      }
+      outsideTemperatureWasSet = false;
+      printOutTemperature();
     }
 
     void Display::SetWasteGasTemperature(int wasteGasTemperature)
@@ -246,10 +256,6 @@
           lcd->write((byte)3);
         }
       }
-      if(!outsideTemperatureWasSet)
-      {
-        printOutTemperature(shouldBlink);
-      }
       if(mode == 2 && !thermostat)
       {
         PrintMode(mode, shouldBlink);
@@ -282,7 +288,7 @@
       forcePrint = true;
       lcd->clear();
       SetRequiredTemperature(this->requiredTemperature);
-      SetOutTemperature(this->outTemperature);
+      printOutTemperature();
       SetWasteGasTemperature(this->wasteGasTemperature);
       SetInputTemperature(this->inputTemperature);
       SetCurrentHeatingTemperature(this->currentHeatingTemperature);
@@ -307,4 +313,4 @@
           }
         }
       }
-    }
+    }
diff --git a/display.h b/display.h
@@ -51,7 +51,7 @@ class Display
 
     void print2digits(uint8_t number);
     void printTime();
-    void printOutTemperature(bool blink);
+    void printOutTemperature();
     void Blink();
     void PrintMode(uint8_t mode, bool blink);
 
@@ -69,4 +69,5 @@ class Display
     void SetThermostat(bool thermostat);
     void EndInitialize();
     void SetHeater(bool heaterOn);
+    void SetOutTemperatureNotSet();
 };
diff --git a/docs/PARAMETERS.md b/docs/PARAMETERS.md
@@ -20,7 +20,7 @@
 | `TOPIC_CURRENTDATETIEM` | IN | Synchronizace času ve formátu `YYYY-MM-DD HH:MM:SS` |
 | `TOPIC_THERMOSTATSETCHANGED` | IN | Požadovaná vnitřní teplota z termostatu (float) |
 | `TOPIC_OUTSIDETEMPERATURE` | OUT | Surová data z venkovního čidla (hex-encoded 5 bajtů) |
-| `TOPIC_HEATERSTATE` | OUT | Binární paket `HeaterState` (22 bajtů) se stavem regulátoru |
+| `TOPIC_HEATERSTATE` | OUT | Binární paket `HeaterState` (23 bajtů) se stavem regulátoru |
 | `TOPIC_FVE` | OUT | **Volitelný** — binární paket `FVEData` (16 bajtů) s daty z wattmetru |
 | `TOPIC_FVE_STATE` | OUT | **Volitelný** — stav FVE (`Online` / `Offline`) |