add marax/pump mqtt subject

README.md

@@ -66,6 +66,7 @@ The time is not recorded unless 12 seconds have passed because MaraX machine sta
 If you connect the ESP to the wifi and provide a MQTT bridge the following messages will be broadcasted:
 
 - `/marax/power` with `on` or `off`
+- `/marax/pump` with `on` or `off`
 - `/marax/hx` with the current temperature of the heat exchanger
 - `/marax/steam` with the current temperature of the steam boiler
 - `/marax/shot` with the duration of the last shot (if the shot took longer than 15 seconds)

main/main.ino

@@ -47,7 +47,7 @@ char receivedChars[numChars];
 
 void setup() {
   Serial.begin(9600);
-  if (SSID && PSK && MQTT_BROKER) {
+  if (SSID != "" && PSK != "" && MQTT_BROKER != "") {
     setupWifi();
   } else {
     WiFi.mode(WIFI_OFF);
@@ -65,7 +65,7 @@ void loop() {
   updateTimer();
   updateSerial();
 
-  if (SSID && PSK && MQTT_BROKER) {
+  if (SSID != "" && PSK != "" && MQTT_BROKER != "") {
     updateWifi();
   }
 }

main/wifi.ino

@@ -2,6 +2,7 @@ String lastMachineState;
 int lastHxTemperature = NULL;
 int lastSteamTemperature = NULL;
 long lastTimerStartMillis = 0;
+bool lastTimerStarted = false;
 
 void setupWifi() { 
   WiFi.begin(SSID, PSK);
@@ -41,6 +42,11 @@ void updateWifi() {
     lastTimerStartMillis = timerStartMillis;
     broadcastShot();
   }
+
+  if (lastTimerStarted != timerStarted) {
+    lastTimerStarted = timerStarted;
+    brodcastPump();
+  }
 }
 
 void broadcastMachineState() {
@@ -62,3 +68,11 @@ void broadcastSteamTemperature() {
 void broadcastShot() {
   client.publish("/marax/shot", String(timerCount).c_str());
 }
+
+void brodcastPump() {
+  if (timerStarted) {
+    client.publish("/marax/pump", "on");
+  } else {
+    client.publish("/marax/power", "off");
+  }
+}