Add features, fix typos and filter outputs

Fixed:
- Typo of void brodcastPump changed to void broadcastPump

- Added filtering to the temperatures being broadcasted, so that no changes within 3, under 15, above 115 for the HX and 250 degrees for the steamboiler will be reported. This was done to fix the data going to MQTT as spikes of 0 and up to 500 degrees would appear and ruin the graphs and data.

Added:
- Even more MQTT publishing.
   - Publish Machine heating state
   - Publish steam boost heating
- Dynamic authentication settings for connecting to the MQTT broker

main/main.ino

@@ -27,6 +27,8 @@ PubSubClient client(espClient);
 const char* SSID = "";
 const char* PSK = "";
 const char* MQTT_BROKER = "";
+const char* MQTT_USER = "";
+const char* MQTT_PASSWORD = "";
 
 // State
 int timerCount = 0;

main/wifi.ino

@@ -3,6 +3,8 @@ int lastHxTemperature = NULL;
 int lastSteamTemperature = NULL;
 long lastTimerStartMillis = 0;
 bool lastTimerStarted = false;
+bool lastMachineHeating = false;
+bool lastMachineHeatingBoost = false;
 
 void setupWifi() { 
   WiFi.begin(SSID, PSK);
@@ -15,9 +17,14 @@ void setupWifi() {
 void updateWifi() {
   if (!client.connected()) {
     while (!client.connected()) {
-      client.connect("marax");
-
-      delay(100);
+      if ( MQTT_USER != "" && MQTT_PASSWORD != "" ) {
+        client.connect("marax", MQTT_USER, MQTT_PASSWORD);
+        delay(100);
+        }
+      else {
+        client.connect("marax");
+        delay(100);
+      }
     }
   }
 
@@ -30,12 +37,14 @@ void updateWifi() {
 
   if (lastHxTemperature != hxTemperature) {
     lastHxTemperature = hxTemperature;
-    broadcastHxTemperature();
+    if (hxTemperature > 15 && hxTemperature < 115 && abs(hxTemperature - lastHxTemperature) < 3) {
+    broadcastHxTemperature();}
   }
 
   if (lastSteamTemperature != steamTemperature) {
     lastSteamTemperature = steamTemperature;
-    broadcastSteamTemperature();
+    if (steamTemperature > 15 && steamTemperature < 250 && abs(steamTemperature - lastSteamTemperature) < 3) {
+    broadcastSteamTemperature();}
   }
 
   if (lastTimerStartMillis != timerStartMillis && ((millis() - timerStartMillis ) / 1000) > 15 && timerStarted == false && timerCount > 0) {
@@ -45,7 +54,17 @@ void updateWifi() {
 
   if (lastTimerStarted != timerStarted) {
     lastTimerStarted = timerStarted;
-    brodcastPump();
+    broadcastPump();
+  }
+
+  if (lastMachineHeating != machineHeating) {
+    lastMachineHeating = machineHeating;
+    broadcastMachineHeating();
+  }
+
+  if (lastMachineHeatingBoost != machineHeatingBoost) {
+    lastMachineHeatingBoost = machineHeatingBoost;
+    broadcastMachineHeatingBoost();
   }
 }
 
@@ -69,10 +88,26 @@ void broadcastShot() {
   client.publish("/marax/shot", String(timerCount).c_str());
 }
 
-void brodcastPump() {
+void broadcastPump() {
   if (timerStarted) {
     client.publish("/marax/pump", "on");
   } else {
-    client.publish("/marax/power", "off");
+    client.publish("/marax/pump", "off");
+  }
+}
+
+void broadcastMachineHeating () {
+  if (machineHeating) {
+    client.publish("/marax/machineheating", "on");
+  } else {
+    client.publish("/marax/machineheating", "off");
+  }
+}
+
+void broadcastMachineHeatingBoost () {
+  if (machineHeatingBoost) {
+    client.publish("/marax/machineheatingboost", "on");
+  } else {
+    client.publish("/marax/machineheatingboost", "off");
   }
 }