two modes if no humidity sensor available

src/Heating.cpp

@@ -5,7 +5,39 @@
 #include "Heating.h"
 #include "Pins.h"
 
-void Heating::init(Temperature *tempsensor) {
+void Heating::init(Temperature *tempsensor, unsigned mode) {
+    switch (mode) {
+        case TIME: {
+            const unsigned percentOn = 20;
+            const unsigned refreshperiod = 60;
+
+            const auto func = [this]() {
+                mLuefterTicker.detach();
+
+                // every minute turn on the heating
+                digitalWrite(LuefterPin, HIGH);
+                digitalWrite(HeizungPin, HIGH);
+
+                Serial.println("Turning on heating");
+
+                mTurnOffTicker.once(refreshperiod * percentOn / 100, []() {
+                    digitalWrite(HeizungPin, LOW);
+
+                    Serial.println("Turned off heating!");
+                });
+
+                mLuefterTicker.once((refreshperiod * percentOn / 100) + 30, []() {
+                    digitalWrite(LuefterPin, LOW);
+
+                    Serial.println("Turned off fan!");
+                });
+            };
+
+            func();
+            mHeizungTicker.attach(60, func);
+            break;
+        }
+        case HUMIDITY:
             mFanWaiting = false;
 
             mHeizungTicker.attach(10, [&tempsensor, this]() {
@@ -47,4 +79,8 @@ void Heating::init(Temperature *tempsensor) {
                     }
                 });
             });
+            break;
+        default:
+            break;
+    }
 }

src/Heating.h

@@ -9,10 +9,13 @@
 
 class Heating {
 public:
-    void init(Temperature* tempsensor);
+    void init(Temperature* tempsensor, unsigned mode);
+
+    enum MODES {TIME, HUMIDITY};
 private:
     Ticker mHeizungTicker;
     Ticker mLuefterTicker;
+    Ticker mTurnOffTicker;
 
     bool mFanWaiting;
 };

src/main.cpp

@@ -189,7 +189,7 @@ void setup() {
     mang.init(&temp);
 
     Serial.println("initializing heating service");
-    mHeat.init(&temp);
+    mHeat.init(&temp, Heating::TIME);
 
     Serial.println("startup sequence complete!\n");
     digitalWrite(LED_BUILTIN, HIGH);