Calculate average room temperature based on MAX! thermostats and send…

… it to the heater

BSB_LAN/custom_functions/Send_room_temperature_based_on_MAX_thermostats/BSB_LAN_custom.h

@@ -0,0 +1,38 @@
+/* 
+ * Calculate the average of all MAX! wall and heating thermostats 
+ * and send this as the current room temperature to the heating system.
+*/
+
+if (custom_timer > custom_timer_compare+60000) {    // every 60 seconds  
+  custom_timer_compare = millis();
+
+  max_cul.println(F("Zr")); // periodically (re-)activate "Moritz" mode on Cube to receive MAX messages
+  int max_avg_count = 0;
+  float max_avg = 0;
+  for (int x=0;x<20;x++) {
+    if (max_cur_temp[x] > 0) {
+      max_avg += (float)max_cur_temp[x] / 10;
+      max_avg_count++;
+/*
+      // Debug output
+      Serial.print(max_devices[x], HEX);
+      Serial.print(F(": "));
+      Serial.print((float)max_cur_temp[x] / 10);  // Current temperature
+      Serial.print(F(" / "));
+      Serial.print((float)max_dst_temp[x] / 2);   // Desired temperature
+      Serial.print(F(" / "));
+      Serial.println(max_valve[x]);               // Valve opening in percent
+*/
+    }
+  }
+  if (max_avg_count > 0) {
+    Serial.print(F("Avgerage temperature based on all MAX! thermostats: "));
+    Serial.println(max_avg / max_avg_count);
+
+    char set_temp[6];
+    dtostrf((max_avg/max_avg_count), 1, 1, set_temp);   // Convert temperature value to char as required by set() function
+    Serial.print(F("Setting room temperature to "));
+    Serial.println(set_temp);
+    set(10000, set_temp, 0);
+  }
+}